Gasiński, Leszek; Papageorgiou, Nikolaos S.; Zhang, Youpei Positive solutions for a class of nonlinear parametric Robin problems. (English) Zbl 07797027 Rend. Circ. Mat. Palermo (2) 73, No. 1, 429-454 (2024). MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{L. Gasiński} et al., Rend. Circ. Mat. Palermo (2) 73, No. 1, 429--454 (2024; Zbl 07797027) Full Text: DOI OA License
Liu, Zhenhai; Papageorgiou, Nikolaos S. Resonant-superlinear and resonant-sublinear Dirichlet problems. (English) Zbl 07785609 Bull. Malays. Math. Sci. Soc. (2) 47, No. 1, Paper No. 19, 31 p. (2024). Reviewer: Patrick Winkert (Berlin) MSC: 35J92 35J25 35A01 35A15 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{N. S. Papageorgiou}, Bull. Malays. Math. Sci. Soc. (2) 47, No. 1, Paper No. 19, 31 p. (2024; Zbl 07785609) Full Text: DOI
Bai, Yunru; Papageorgiou, Nikolaos S.; Zeng, Shengda Positive solutions for nonlinear singular problems with sign-changing nonlinearities. (English) Zbl 07800033 Discrete Contin. Dyn. Syst., Ser. S 16, No. 11, 2945-2963 (2023). MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{Y. Bai} et al., Discrete Contin. Dyn. Syst., Ser. S 16, No. 11, 2945--2963 (2023; Zbl 07800033) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Sun, Xueying Indefinite perturbations of the eigenvalue problem for the nonautonomous \(p\)-Laplacian. (English) Zbl 07765807 Milan J. Math. 91, No. 2, 353-373 (2023). Reviewer: Vladimir Bobkov (Ufa) MSC: 35P30 35B20 35J20 35J62 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Milan J. Math. 91, No. 2, 353--373 (2023; Zbl 07765807) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Zhang, Jian Parametric anisotropic singular equations with \([p(z), q(z)]\)-growth conditions and indefinite perturbation. (English) Zbl 1528.35062 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 117, No. 4, Paper No. 158, 22 p. (2023). Reviewer: Patrick Winkert (Berlin) MSC: 35J75 35A01 35A15 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 117, No. 4, Paper No. 158, 22 p. (2023; Zbl 1528.35062) Full Text: DOI
Liu, Zhenhai; Papageorgiou, Nikolaos S. On a nonhomogeneous, nonlinear Dirichlet eigenvalue problem. (English) Zbl 1525.35151 Math. Nachr. 296, No. 9, 3986-4001 (2023). MSC: 35J92 35J25 35P30 35J20 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{N. S. Papageorgiou}, Math. Nachr. 296, No. 9, 3986--4001 (2023; Zbl 1525.35151) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Divergent sequence of nontrivial solutions for superlinear double phase problems. (English) Zbl 1523.35193 Asymptotic Anal. 134, No. 1-2, 183-192 (2023). Reviewer: Patrick Winkert (Berlin) MSC: 35J92 35J25 35A01 35A15 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Asymptotic Anal. 134, No. 1--2, 183--192 (2023; Zbl 1523.35193) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Zhang, Jian Sequences of high and low energy solutions for weighted \((p, q)\)-equations. (English) Zbl 1523.35192 Discrete Contin. Dyn. Syst., Ser. S 16, No. 6, 1610-1628 (2023). Reviewer: Calogero Vetro (Palermo) MSC: 35J92 35J25 35A01 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Discrete Contin. Dyn. Syst., Ser. S 16, No. 6, 1610--1628 (2023; Zbl 1523.35192) Full Text: DOI
Gasiński, Leszek; Papageorgiou, Nikolaos S. Singular equations with variable exponents and concave-convex nonlinearities. (English) Zbl 1522.35187 Discrete Contin. Dyn. Syst., Ser. S 16, No. 6, 1414-1434 (2023). Reviewer: Calogero Vetro (Palermo) MSC: 35J20 35J60 35J25 35A01 PDFBibTeX XMLCite \textit{L. Gasiński} and \textit{N. S. Papageorgiou}, Discrete Contin. Dyn. Syst., Ser. S 16, No. 6, 1414--1434 (2023; Zbl 1522.35187) Full Text: DOI
Leonardi, Salvatore; Papageorgiou, Nikolaos S. Positive solutions for a class of singular \((p, q)\)-equations. (English) Zbl 1519.35190 Adv. Nonlinear Anal. 12, Article ID 20220300, 9 p. (2023). MSC: 35J92 35J75 35J25 35J20 PDFBibTeX XMLCite \textit{S. Leonardi} and \textit{N. S. Papageorgiou}, Adv. Nonlinear Anal. 12, Article ID 20220300, 9 p. (2023; Zbl 1519.35190) Full Text: DOI
Liu, Zhenhai; Papageorgiou, Nikolaos S. A weighted \((p, 2)\)-equation with double resonance. (English) Zbl 1519.35191 Electron. J. Differ. Equ. 2023, Paper No. 30, 18 p. (2023). MSC: 35J92 35A01 35J20 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{N. S. Papageorgiou}, Electron. J. Differ. Equ. 2023, Paper No. 30, 18 p. (2023; Zbl 1519.35191) Full Text: Link
Papageorgiou, Nikolaos S.; Repovš, Dušan D.; Vetro, Calogero Constant sign and nodal solutions for parametric anisotropic \((p, 2)\)-equations. (English) Zbl 1522.35188 Appl. Anal. 102, No. 4, 1059-1076 (2023). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J92 35A01 35B65 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Appl. Anal. 102, No. 4, 1059--1076 (2023; Zbl 1522.35188) Full Text: DOI arXiv
Papageorgiou, Nikolaos S.; Scapellato, Andrea Positive and nodal solutions for parametric superlinear weighted \(( p , q )\)-equations. (English) Zbl 1518.35409 Nonlinear Anal., Real World Appl. 71, Article ID 103786, 28 p. (2023). MSC: 35J92 35P30 35A01 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{A. Scapellato}, Nonlinear Anal., Real World Appl. 71, Article ID 103786, 28 p. (2023; Zbl 1518.35409) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Global multiplicity for parametric anisotropic Neumann \((p,q)\)-equations. (English) Zbl 1514.35243 Topol. Methods Nonlinear Anal. 61, No. 1, 393-422 (2023). MSC: 35J92 35J25 35A01 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Topol. Methods Nonlinear Anal. 61, No. 1, 393--422 (2023; Zbl 1514.35243) Full Text: DOI arXiv
Bai, Yunru; Papageorgiou, Nikolaos S.; Zeng, Shengda Multiplicity results for nonlinear nonhomogeneous Robin problems with indefinite potential term. (English) Zbl 1514.35136 Result. Math. 78, No. 4, Paper No. 134, 27 p. (2023). MSC: 35J20 35J62 35J25 PDFBibTeX XMLCite \textit{Y. Bai} et al., Result. Math. 78, No. 4, Paper No. 134, 27 p. (2023; Zbl 1514.35136) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Zhang, Wen Global existence and multiplicity for nonlinear Robin eigenvalue problems. (English) Zbl 1514.35026 Result. Math. 78, No. 4, Paper No. 133, 17 p. (2023). MSC: 35B32 35J20 35J25 35J92 35P30 47J15 58E07 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Result. Math. 78, No. 4, Paper No. 133, 17 p. (2023; Zbl 1514.35026) Full Text: DOI
Leonardi, S.; Papageorgiou, Nikolaos S. Anisotropic Dirichlet double phase problems with competing nonlinearities. (English) Zbl 1514.35240 Rev. Mat. Complut. 36, No. 2, 469-490 (2023). MSC: 35J92 35A01 35J20 PDFBibTeX XMLCite \textit{S. Leonardi} and \textit{N. S. Papageorgiou}, Rev. Mat. Complut. 36, No. 2, 469--490 (2023; Zbl 1514.35240) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Singular anisotropic problems with competition phenomena. (English) Zbl 1517.35113 J. Geom. Anal. 33, No. 6, Paper No. 173, 26 p. (2023). Reviewer: Patrick Winkert (Berlin) MSC: 35J75 35J25 35A01 35A15 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., J. Geom. Anal. 33, No. 6, Paper No. 173, 26 p. (2023; Zbl 1517.35113) Full Text: DOI
Zeng, Shengda; Papageorgiou, Nikolaos S.; Winkert, Patrick Inverse problems for double-phase obstacle problems with variable exponents. (English) Zbl 1518.35274 J. Optim. Theory Appl. 196, No. 2, 666-699 (2023). Reviewer: Calogero Vetro (Palermo) MSC: 35J20 35J25 35J60 35R30 49N45 PDFBibTeX XMLCite \textit{S. Zeng} et al., J. Optim. Theory Appl. 196, No. 2, 666--699 (2023; Zbl 1518.35274) Full Text: DOI
Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, Vasile Nonlinear Robin problems with locally defined reaction. (English) Zbl 1516.35206 Pure Appl. Funct. Anal. 8, No. 1, 27-47 (2023). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J92 35J25 35A01 PDFBibTeX XMLCite \textit{S. Aizicovici} et al., Pure Appl. Funct. Anal. 8, No. 1, 27--47 (2023; Zbl 1516.35206) Full Text: Link
Leonardi, Salvatore; Papageorgiou, Nikolaos S. Singular anisotropic double phase problems. (English) Zbl 1518.35404 Result. Math. 78, No. 3, Paper No. 73, 25 p. (2023). Reviewer: Calogero Vetro (Palermo) MSC: 35J92 35J75 35A01 35J20 PDFBibTeX XMLCite \textit{S. Leonardi} and \textit{N. S. Papageorgiou}, Result. Math. 78, No. 3, Paper No. 73, 25 p. (2023; Zbl 1518.35404) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Nonlinear concave-convex problems with indefinite weight. (English) Zbl 1512.35342 Complex Var. Elliptic Equ. 68, No. 2, 291-305 (2023). Reviewer: Patrick Winkert (Berlin) MSC: 35J92 35J66 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Complex Var. Elliptic Equ. 68, No. 2, 291--305 (2023; Zbl 1512.35342) Full Text: DOI
Papageorgiou, Nikolaos S.; Zhang, Chao Global multiplicity for the positive solutions of parametric singular \((p, q)\)-equations with indefinite perturbations. (English) Zbl 1512.35205 Bull. Malays. Math. Sci. Soc. (2) 46, No. 1, Paper No. 5, 31 p. (2023). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J75 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{C. Zhang}, Bull. Malays. Math. Sci. Soc. (2) 46, No. 1, Paper No. 5, 31 p. (2023; Zbl 1512.35205) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Wen, Lixi Strongly singular nonhomogeneous eigenvalue problems. (English) Zbl 1512.35204 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 117, No. 1, Paper No. 32, 17 p. (2023). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J75 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 117, No. 1, Paper No. 32, 17 p. (2023; Zbl 1512.35204) Full Text: DOI
Papageorgiou, Nikolaos S.; Repovš, Dušan D.; Vetro, Calogero Anisotropic \((p,q)\)-equations with convex and negative concave terms. arXiv:2305.11515 Preprint, arXiv:2305.11515 [math.AP] (2023). MSC: 35J20 35J60 BibTeX Cite \textit{N. S. Papageorgiou} et al., ``Anisotropic $(p,q)$-equations with convex and negative concave terms'', Preprint, arXiv:2305.11515 [math.AP] (2023) Full Text: DOI arXiv OA License
Crespo-Blanco, Ángel; Papageorgiou, Nikolaos S.; Winkert, Patrick Parametric superlinear double phase problems with singular term and critical growth on the boundary. (English) Zbl 07780536 Math. Methods Appl. Sci. 45, No. 4, 2276-2298 (2022). MSC: 35J62 35J75 35J25 35A15 PDFBibTeX XMLCite \textit{Á. Crespo-Blanco} et al., Math. Methods Appl. Sci. 45, No. 4, 2276--2298 (2022; Zbl 07780536) Full Text: DOI arXiv OA License
Bai, Yunru; Papageorgiou, Nikolaos S.; Zeng, Shengda Positive solutions for a double phase eigenvalue problem. (English) Zbl 1500.35180 Positivity 26, No. 5, Paper No. 81, 9 p. (2022). MSC: 35J92 35J25 35A01 35A15 PDFBibTeX XMLCite \textit{Y. Bai} et al., Positivity 26, No. 5, Paper No. 81, 9 p. (2022; Zbl 1500.35180) Full Text: DOI
Papageorgiou, Nikolaos S.; Zhang, Chao Singular \((p,q)\)-equations with competing perturbations. (English) Zbl 1503.35075 Appl. Anal. 101, No. 17, 6151-6171 (2022). Reviewer: Leszek Gasiński (Kraków) MSC: 35J20 35J75 35J92 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{C. Zhang}, Appl. Anal. 101, No. 17, 6151--6171 (2022; Zbl 1503.35075) Full Text: DOI
Liu, Zhenhai; Papageorgiou, Nikolaos S. Double phase equations with an indefinite concave term. (English) Zbl 1498.35292 Electron. J. Differ. Equ. 2022, Paper No. 55, 10 p. (2022). Reviewer: Patrick Winkert (Berlin) MSC: 35J75 35J20 35J60 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{N. S. Papageorgiou}, Electron. J. Differ. Equ. 2022, Paper No. 55, 10 p. (2022; Zbl 1498.35292) Full Text: Link
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Parametric nonlinear nonhomogeneous Robin problems. (English) Zbl 1497.35143 J. Nonlinear Convex Anal. 23, No. 7, 1289-1310 (2022). MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., J. Nonlinear Convex Anal. 23, No. 7, 1289--1310 (2022; Zbl 1497.35143) Full Text: Link
Leonardi, Salvatore; Papageorgiou, Nikolaos S. Arbitrarily small nodal solutions for parametric Robin \((p, q)\)-equations plus an indefinite potential. (English) Zbl 1513.35177 Acta Math. Sci., Ser. B, Engl. Ed. 42, No. 2, 561-574 (2022). MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{S. Leonardi} and \textit{N. S. Papageorgiou}, Acta Math. Sci., Ser. B, Engl. Ed. 42, No. 2, 561--574 (2022; Zbl 1513.35177) Full Text: DOI
Liu, Zhenhai; Papageorgiou, Nikolaos S. Anisotropic \((p, q)\)-equations with competition phenomena. (English) Zbl 1513.35268 Acta Math. Sci., Ser. B, Engl. Ed. 42, No. 1, 299-322 (2022). MSC: 35J75 35J20 35J60 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{N. S. Papageorgiou}, Acta Math. Sci., Ser. B, Engl. Ed. 42, No. 1, 299--322 (2022; Zbl 1513.35268) Full Text: DOI
Zeng, Shengda; Papageorgiou, Nikolaos S. Arbitrarily small nodal solutions for nonhomogeneous Robin problems. (English) Zbl 1512.35210 Asymptotic Anal. 128, No. 4, 539-553 (2022). Reviewer: Calogero Vetro (Palermo) MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{S. Zeng} and \textit{N. S. Papageorgiou}, Asymptotic Anal. 128, No. 4, 539--553 (2022; Zbl 1512.35210) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Anisotropic singular Neumann equations with unbalanced growth. (English) Zbl 1492.35130 Potential Anal. 57, No. 1, 55-82 (2022). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J75 35J92 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Potential Anal. 57, No. 1, 55--82 (2022; Zbl 1492.35130) Full Text: DOI arXiv
Liu, Zhenhai; Papageorgiou, Nikolaos S. Nodal solutions for a weighted \((p,q)\)-equation. (English) Zbl 1491.35158 J. Convex Anal. 29, No. 2, 559-570 (2022). Reviewer: Calogero Vetro (Palermo) MSC: 35J20 35J92 35J25 35A01 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{N. S. Papageorgiou}, J. Convex Anal. 29, No. 2, 559--570 (2022; Zbl 1491.35158) Full Text: Link
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Zhang, Youpei Strongly singular double phase problems. (English) Zbl 1485.35224 Mediterr. J. Math. 19, No. 2, Paper No. 82, 21 p. (2022). MSC: 35J75 35J92 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Mediterr. J. Math. 19, No. 2, Paper No. 82, 21 p. (2022; Zbl 1485.35224) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Zhang, Youpei Ground-state nodal solutions for superlinear perturbations of the Robin eigenvalue problem. (English) Zbl 1486.35238 Z. Angew. Math. Phys. 73, No. 2, Paper No. 49, 19 p. (2022). MSC: 35J92 35J25 35A01 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Z. Angew. Math. Phys. 73, No. 2, Paper No. 49, 19 p. (2022; Zbl 1486.35238) Full Text: DOI
Papageorgiou, Nikolaos S. Double phase problems: a survey of some recent results. (English) Zbl 1485.35158 Opusc. Math. 42, No. 2, 257-278 (2022). MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou}, Opusc. Math. 42, No. 2, 257--278 (2022; Zbl 1485.35158) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Least energy solutions with sign information for parametric double phase problems. (English) Zbl 1482.35102 Result. Math. 77, No. 1, Paper No. 35, 22 p. (2022). Reviewer: Patrick Winkert (Berlin) MSC: 35J92 35A01 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Result. Math. 77, No. 1, Paper No. 35, 22 p. (2022; Zbl 1482.35102) Full Text: DOI
Bai, Yunru; Papageorgiou, Nikolaos S.; Zeng, Shengda A singular eigenvalue problem for the Dirichlet \((p, q)\)-Laplacian. (English) Zbl 1484.35243 Math. Z. 300, No. 1, 325-345 (2022). Reviewer: Calogero Vetro (Palermo) MSC: 35J92 35B09 35B30 35J20 PDFBibTeX XMLCite \textit{Y. Bai} et al., Math. Z. 300, No. 1, 325--345 (2022; Zbl 1484.35243) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Zhang, Youpei Resonant double phase equations. (English) Zbl 1479.35291 Nonlinear Anal., Real World Appl. 64, Article ID 103454, 20 p. (2022). Reviewer: Patrick Winkert (Berlin) MSC: 35J15 35J62 35J92 35A01 35A15 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Nonlinear Anal., Real World Appl. 64, Article ID 103454, 20 p. (2022; Zbl 1479.35291) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca On noncoercive \((p, q)\)-equations. (English) Zbl 1513.35182 Acta Math. Sci., Ser. B, Engl. Ed. 41, No. 5, 1788-1808 (2021). MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Acta Math. Sci., Ser. B, Engl. Ed. 41, No. 5, 1788--1808 (2021; Zbl 1513.35182) Full Text: DOI
Papageorgiou, Nikolaos S.; Rǎdulescu, Vicenţiu D.; Zhang, Youpei Anisotropic singular double Phase Dirichlet problems. (English) Zbl 1482.35101 Discrete Contin. Dyn. Syst., Ser. S 14, No. 12, 4465-4502 (2021). Reviewer: Calogero Vetro (Palermo) MSC: 35J92 35J25 35B09 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Discrete Contin. Dyn. Syst., Ser. S 14, No. 12, 4465--4502 (2021; Zbl 1482.35101) Full Text: DOI
Liu, Zhenhai; Papageorgiou, Nikolaos S. Multiple solutions with sign information for superlinear \((p, q)\)-equations. (English) Zbl 1481.35241 Positivity 25, No. 5, 1805-1820 (2021). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J92 35A01 35B65 35J20 58E05 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{N. S. Papageorgiou}, Positivity 25, No. 5, 1805--1820 (2021; Zbl 1481.35241) Full Text: DOI
Liu, Zhenhai; Papageorgiou, Nikolaos S. Pairs of positive solutions for nonhomogeneous Dirichlet problems. (English) Zbl 1479.35396 Bull. Malays. Math. Sci. Soc. (2) 44, No. 6, 3969-3981 (2021). Reviewer: Calogero Vetro (Palermo) MSC: 35J60 35J25 35A01 35A02 35B65 35J20 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{N. S. Papageorgiou}, Bull. Malays. Math. Sci. Soc. (2) 44, No. 6, 3969--3981 (2021; Zbl 1479.35396) Full Text: DOI
Papageorgiou, Nikolaos S.; Winkert, Patrick \((p, q)\)-equations with singular and concave convex nonlinearities. (English) Zbl 1479.35492 Appl. Math. Optim. 84, No. 3, 2601-2628 (2021). Reviewer: Calogero Vetro (Palermo) MSC: 35J92 35J75 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{P. Winkert}, Appl. Math. Optim. 84, No. 3, 2601--2628 (2021; Zbl 1479.35492) Full Text: DOI arXiv
Papageorgiou, Nikolaos S.; Winkert, Patrick Positive solutions for weighted singular \(p\)-Laplace equations via Nehari manifolds. (English) Zbl 1475.35158 Appl. Anal. 100, No. 11, 2436-2448 (2021). Reviewer: Calogero Vetro (Palermo) MSC: 35J62 35J75 35J67 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{P. Winkert}, Appl. Anal. 100, No. 11, 2436--2448 (2021; Zbl 1475.35158) Full Text: DOI arXiv
Papageorgiou, Nikolaos S.; Zhang, Youpei On the set of positive solutions for resonant Robin \((p, q)\)-equations. (English) Zbl 1479.35297 Adv. Nonlinear Anal. 10, 1132-1153 (2021). Reviewer: Petru Jebelean (Timişoara) MSC: 35J20 35J60 35J92 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{Y. Zhang}, Adv. Nonlinear Anal. 10, 1132--1153 (2021; Zbl 1479.35297) Full Text: DOI
Gasiński, Leszek; Papageorgiou, Nikolaos S. Multiple solutions with sign information for a class of parametric superlinear \((p, 2)\)-equations. (English) Zbl 1479.35294 Appl. Math. Optim. 83, No. 3, 1523-1545 (2021). Reviewer: Said El Manouni (Berlin) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{L. Gasiński} and \textit{N. S. Papageorgiou}, Appl. Math. Optim. 83, No. 3, 1523--1545 (2021; Zbl 1479.35294) Full Text: DOI
Papageorgiou, Nikolaos S.; Winkert, Patrick Singular Dirichlet \((p, q)\)-equations. (English) Zbl 1471.35113 Mediterr. J. Math. 18, No. 4, Paper No. 141, 20 p. (2021). Reviewer: Said El Manouni (Berlin) MSC: 35J20 35J75 35J92 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{P. Winkert}, Mediterr. J. Math. 18, No. 4, Paper No. 141, 20 p. (2021; Zbl 1471.35113) Full Text: DOI arXiv
Papageorgiou, Nikolaos S.; Zhang, Chao Singular and superlinear perturbations of the eigenvalue problem for the Dirichlet \(p\)-Laplacian. (English) Zbl 1467.35127 Result. Math. 76, No. 1, Paper No. 28, 18 p. (2021). Reviewer: Calogero Vetro (Palermo) MSC: 35J20 35J75 35J92 35A01 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{C. Zhang}, Result. Math. 76, No. 1, Paper No. 28, 18 p. (2021; Zbl 1467.35127) Full Text: DOI
Papageorgiou, Nikolaos S.; Repovš, Dušan D.; Vetro, Calogero Positive solutions for singular double phase problems. (English) Zbl 1467.35025 J. Math. Anal. Appl. 501, No. 1, Article ID 123896, 13 p. (2021). Reviewer: Patrick Winkert (Berlin) MSC: 35B09 35J92 35J25 35J20 35P30 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., J. Math. Anal. Appl. 501, No. 1, Article ID 123896, 13 p. (2021; Zbl 1467.35025) Full Text: DOI arXiv
Papageorgiou, N. S.; Vetro, C.; Vetro, F. Multiple solutions for parametric double phase Dirichlet problems. (English) Zbl 1467.35181 Commun. Contemp. Math. 23, No. 4, Article ID 2050006, 18 p. (2021). Reviewer: Said El Manouni (Berlin) MSC: 35J91 35J25 35A01 35A15 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Commun. Contemp. Math. 23, No. 4, Article ID 2050006, 18 p. (2021; Zbl 1467.35181) Full Text: DOI
Papageorgiou, Nikolaos S.; Scapellato, Andrea Multiple solutions for Robin \((p,q)\)-equations plus an indefinite potential and a reaction concave near the origin. (English) Zbl 1464.35084 Anal. Math. Phys. 11, No. 2, Paper No. 78, 27 p. (2021). MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{A. Scapellato}, Anal. Math. Phys. 11, No. 2, Paper No. 78, 27 p. (2021; Zbl 1464.35084) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Multiple solutions for semilinear Robin problems with superlinear reaction and no symmetries. (English) Zbl 1465.35158 Electron. J. Differ. Equ. 2021, Paper No. 12, 24 p. (2021). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J20 35J61 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Electron. J. Differ. Equ. 2021, Paper No. 12, 24 p. (2021; Zbl 1465.35158) Full Text: Link
Gasiński, Leszek; Papageorgiou, Nikolaos S.; Petiurenko, Anna Schrödinger Robin problems with indefinite potential and logistic reaction. (English) Zbl 1465.35154 Complex Var. Elliptic Equ. 66, No. 1, 118-143 (2021). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{L. Gasiński} et al., Complex Var. Elliptic Equ. 66, No. 1, 118--143 (2021; Zbl 1465.35154) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Solutions with sign information for nonlinear Robin problems with no growth restriction on reaction. (English) Zbl 1455.35112 Appl. Anal. 100, No. 1, 191-205 (2021). Reviewer: Patrick Winkert (Berlin) MSC: 35J62 35J25 35J20 35A01 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Appl. Anal. 100, No. 1, 191--205 (2021; Zbl 1455.35112) Full Text: DOI
Papageorgiou, Nikolaos S.; Zhang, Youpei Constant sign and nodal solutions for superlinear \((p, q)\)-equations with indefinite potential and a concave boundary term. (English) Zbl 1435.35145 Adv. Nonlinear Anal. 10, 76-101 (2021). MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{Y. Zhang}, Adv. Nonlinear Anal. 10, 76--101 (2021; Zbl 1435.35145) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Landesman-Lazer type \((p, q)\)-equations with Neumann condition. (English) Zbl 1513.35271 Acta Math. Sci., Ser. B, Engl. Ed. 40, No. 4, 991-1000 (2020). MSC: 35J92 35D30 35J20 49J40 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Acta Math. Sci., Ser. B, Engl. Ed. 40, No. 4, 991--1000 (2020; Zbl 1513.35271) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Constant sign and nodal solutions for nonlinear Robin equations with locally defined source term. (English) Zbl 1480.35137 Math. Model. Anal. 25, No. 3, 374-390 (2020). MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Math. Model. Anal. 25, No. 3, 374--390 (2020; Zbl 1480.35137) Full Text: DOI
Gasiński, Leszek; Krech, Ireneusz; Papageorgiou, Nikolaos S. Positive solutions for parametric \((p(z),q(z))\)-equations. (English) Zbl 1480.35134 Open Math. 18, 1076-1096 (2020). Reviewer: Calogero Vetro (Palermo) MSC: 35J20 35J70 PDFBibTeX XMLCite \textit{L. Gasiński} et al., Open Math. 18, 1076--1096 (2020; Zbl 1480.35134) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Positive solutions for the Robin \(p\)-Laplacian plus an indefinite potential. (English) Zbl 1465.35157 Pure Appl. Funct. Anal. 5, No. 5, 1217-1236 (2020). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Pure Appl. Funct. Anal. 5, No. 5, 1217--1236 (2020; Zbl 1465.35157) Full Text: arXiv Link
Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, Vasile Multiple solutions with sign information for \((p,2)\)-equations with asymmetric resonant reaction. (English) Zbl 1464.35080 Pure Appl. Funct. Anal. 5, No. 4, 817-850 (2020). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J62 PDFBibTeX XMLCite \textit{S. Aizicovici} et al., Pure Appl. Funct. Anal. 5, No. 4, 817--850 (2020; Zbl 1464.35080) Full Text: Link
Papageorgiou, Nikolaos; Scapellato, Andrea Nonlinear resonant problems with an indefinite potential and concave boundary condition. (English) Zbl 1474.35257 Electron. J. Qual. Theory Differ. Equ. 2020, Paper No. 51, 16 p. (2020). MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. Papageorgiou} and \textit{A. Scapellato}, Electron. J. Qual. Theory Differ. Equ. 2020, Paper No. 51, 16 p. (2020; Zbl 1474.35257) Full Text: DOI
Papageorgiou, Nikolaos S.; Qin, Dongdong; Rădulescu, Vicenţiu D. Anisotropic double-phase problems with indefinite potential: multiplicity of solutions. (English) Zbl 1454.35087 Anal. Math. Phys. 10, No. 4, Paper No. 63, 36 p. (2020). MSC: 35J20 35J70 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Anal. Math. Phys. 10, No. 4, Paper No. 63, 36 p. (2020; Zbl 1454.35087) Full Text: DOI
Papageorgiou, Nikolaos S.; Scapellato, Andrea Positive solutions for anisotropic singular \((p,q)\)-equations. (English) Zbl 1471.35153 Z. Angew. Math. Phys. 71, No. 5, Paper No. 155, 16 p. (2020). Reviewer: Leszek Gasiński (Kraków) MSC: 35J75 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{A. Scapellato}, Z. Angew. Math. Phys. 71, No. 5, Paper No. 155, 16 p. (2020; Zbl 1471.35153) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Existence and multiplicity of solutions for double-phase Robin problems. (English) Zbl 1447.35131 Bull. Lond. Math. Soc. 52, No. 3, 546-560 (2020). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J25 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Bull. Lond. Math. Soc. 52, No. 3, 546--560 (2020; Zbl 1447.35131) Full Text: DOI arXiv
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Superlinear perturbations of the eigenvalue problem for the Robin Laplacian plus an indefinite and unbounded potential. (English) Zbl 1444.35039 Result. Math. 75, No. 3, Paper No. 116, 22 p. (2020). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Result. Math. 75, No. 3, Paper No. 116, 22 p. (2020; Zbl 1444.35039) Full Text: DOI arXiv
Papageorgiou, Nikolaos S.; Vetro, Calogero; Zhang, Youpei Positive solutions for parametric singular Dirichlet \(( p, q)\)-equations. (English) Zbl 1444.35041 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 198, Article ID 111882, 22 p. (2020). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J75 35J92 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 198, Article ID 111882, 22 p. (2020; Zbl 1444.35041) Full Text: DOI
Papageorgiou, N. S.; Vetro, C.; Vetro, F. \((p, 2)\)-equations resonant at any variational eigenvalue. (English) Zbl 1444.35042 Complex Var. Elliptic Equ. 65, No. 7, 1077-1103 (2020). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Complex Var. Elliptic Equ. 65, No. 7, 1077--1103 (2020; Zbl 1444.35042) Full Text: DOI
Papageorgiou, Nikolaos S.; Zhang, Chao Double phase problem with critical and locally defined reaction terms. (English) Zbl 1442.35448 Asymptotic Anal. 116, No. 2, 73-92 (2020). MSC: 35Q74 35B40 35B20 35B65 35A15 35J60 74B20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{C. Zhang}, Asymptotic Anal. 116, No. 2, 73--92 (2020; Zbl 1442.35448) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Nonlinear, nonhomogeneous Robin problems with indefinite potential and general reaction. (English) Zbl 1441.35109 Appl. Math. Optim. 81, No. 3, 823-857 (2020). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Appl. Math. Optim. 81, No. 3, 823--857 (2020; Zbl 1441.35109) Full Text: DOI arXiv
Leonardi, S.; Papageorgiou, Nikolaos S. Positive solutions for nonlinear Robin problems with indefinite potential and competing nonlinearities. (English) Zbl 1437.35218 Positivity 24, No. 2, 339-367 (2020). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J92 PDFBibTeX XMLCite \textit{S. Leonardi} and \textit{N. S. Papageorgiou}, Positivity 24, No. 2, 339--367 (2020; Zbl 1437.35218) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Multiple solutions with sign information for a class of coercive \((p, 2)\)-equations. (English) Zbl 1437.35359 Bull. Malays. Math. Sci. Soc. (2) 43, No. 3, 2343-2371 (2020). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J62 35A15 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Bull. Malays. Math. Sci. Soc. (2) 43, No. 3, 2343--2371 (2020; Zbl 1437.35359) Full Text: DOI
Onete, Florin-Iulian; Papageorgiou, Nikolaos S.; Vetro, Calogero A multiplicity theorem for parametric superlinear (p,q)-equations. (English) Zbl 1437.35221 Opusc. Math. 40, No. 1, 131-149 (2020). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J62 35A01 PDFBibTeX XMLCite \textit{F.-I. Onete} et al., Opusc. Math. 40, No. 1, 131--149 (2020; Zbl 1437.35221) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Multiple solutions with sign information for a \(( p, 2)\)-equation with combined nonlinearities. (English) Zbl 1436.35117 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 192, Article ID 111716, 25 p. (2020). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 192, Article ID 111716, 25 p. (2020; Zbl 1436.35117) Full Text: DOI
Papageorgiou, Nikolaos S.; Repovš, Dušan D.; Vetro, Calogero Nonlinear nonhomogeneous Robin problems with almost critical and partially concave reaction. (English) Zbl 1437.35222 J. Geom. Anal. 30, No. 2, 1774-1803 (2020). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J20 35J60 35A01 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., J. Geom. Anal. 30, No. 2, 1774--1803 (2020; Zbl 1437.35222) Full Text: DOI arXiv Link
Leonardi, Salvatore; Papageorgiou, Nikolaos S. On a class of critical Robin problems. (English) Zbl 1437.35217 Forum Math. 32, No. 1, 95-109 (2020). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{S. Leonardi} and \textit{N. S. Papageorgiou}, Forum Math. 32, No. 1, 95--109 (2020; Zbl 1437.35217) Full Text: DOI
Papageorgiou, Nikolaos; Scapellato, Andrea Positive solutions for \((p,2)\)-equations with superlinear reaction and a concave boundary term. (English) Zbl 1449.35239 Electron. J. Qual. Theory Differ. Equ. 2020, Paper No. 4, 19 p. (2020). MSC: 35J92 35J20 35J66 35B09 35B50 PDFBibTeX XMLCite \textit{N. Papageorgiou} and \textit{A. Scapellato}, Electron. J. Qual. Theory Differ. Equ. 2020, Paper No. 4, 19 p. (2020; Zbl 1449.35239) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Superlinear Robin problems with indefinite linear part. (English) Zbl 1431.35026 Bull. Malays. Math. Sci. Soc. (2) 43, No. 1, 537-562 (2020). MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Bull. Malays. Math. Sci. Soc. (2) 43, No. 1, 537--562 (2020; Zbl 1431.35026) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Ground state and nodal solutions for a class of double phase problems. (English) Zbl 1437.35358 Z. Angew. Math. Phys. 71, No. 1, Paper No. 15, 15 p. (2020). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J62 35J25 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Z. Angew. Math. Phys. 71, No. 1, Paper No. 15, 15 p. (2020; Zbl 1437.35358) Full Text: DOI arXiv Link
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Parameter dependence for the positive solutions of nonlinear, nonhomogeneous Robin problems. (English) Zbl 1444.35040 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 114, No. 1, Paper No. 45, 29 p. (2020). Reviewer: Leszek Gasiński (Kraków) MSC: 35J20 35J60 35B09 35A01 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 114, No. 1, Paper No. 45, 29 p. (2020; Zbl 1444.35040) Full Text: DOI
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Continuous spectrum for a two phase eigenvalue problem with an indefinite and unbounded potential. (English) Zbl 1439.35152 J. Differ. Equations 268, No. 8, 4102-4118 (2020). Reviewer: Petr Tomiczek (Plzeň) MSC: 35J20 35J60 35P30 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., J. Differ. Equations 268, No. 8, 4102--4118 (2020; Zbl 1439.35152) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Nonlinear nonhomogeneous singular problems. (English) Zbl 1453.35069 Calc. Var. Partial Differ. Equ. 59, No. 1, Paper No. 9, 31 p. (2020). Reviewer: Andrea Scapellato (Catania) MSC: 35J20 35J75 35J92 35P30 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Calc. Var. Partial Differ. Equ. 59, No. 1, Paper No. 9, 31 p. (2020; Zbl 1453.35069) Full Text: DOI arXiv Link
Papageorgiou, Nikolaos S.; Scapellato, Andrea Constant sign and nodal solutions for parametric \((p, 2)\)-equations. (English) Zbl 1426.35108 Adv. Nonlinear Anal. 9, 449-478 (2020). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{A. Scapellato}, Adv. Nonlinear Anal. 9, 449--478 (2020; Zbl 1426.35108) Full Text: DOI
Papageorgiou, Nikolaos S.; Zhang, Chao Noncoercive resonant \((p,2)\)-equations with concave terms. (English) Zbl 1426.35109 Adv. Nonlinear Anal. 9, 228-249 (2020). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{C. Zhang}, Adv. Nonlinear Anal. 9, 228--249 (2020; Zbl 1426.35109) Full Text: DOI
Gasiński, Leszek; Papageorgiou, Nikolaos S.; Winowski, Krzysztof Positive solutions for nonlinear Robin problems with concave terms. (English) Zbl 1436.35113 J. Convex Anal. 26, No. 4, 1145-1174 (2019). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{L. Gasiński} et al., J. Convex Anal. 26, No. 4, 1145--1174 (2019; Zbl 1436.35113) Full Text: Link
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Parametric nonlinear resonant Robin problems. (English) Zbl 1439.35151 Math. Nachr. 292, No. 11, 2456-2480 (2019). Reviewer: Dumitru Motreanu (Perpignan) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Math. Nachr. 292, No. 11, 2456--2480 (2019; Zbl 1439.35151) Full Text: DOI arXiv Link
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca On a Robin \(((p,q)\)-equation with a logistic reaction. (English) Zbl 1435.35144 Opusc. Math. 39, No. 2, 227-245 (2019). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Opusc. Math. 39, No. 2, 227--245 (2019; Zbl 1435.35144) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Positive solutions for a class of singular Dirichlet problems. (English) Zbl 1429.35065 J. Differ. Equations 267, No. 11, 6539-6554 (2019). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J60 35J75 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., J. Differ. Equations 267, No. 11, 6539--6554 (2019; Zbl 1429.35065) Full Text: DOI arXiv Link
Guarnotta, Umberto; Marano, Salvatore A.; Papageorgiou, Nikolaos S. Multiple nodal solutions to a Robin problem with sign-changing potential and locally defined reaction. (English) Zbl 1429.35063 Atti Accad. Naz. Lincei, Cl. Sci. Fis. Mat. Nat., IX. Ser., Rend. Lincei, Mat. Appl. 30, No. 2, 269-294 (2019). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{U. Guarnotta} et al., Atti Accad. Naz. Lincei, Cl. Sci. Fis. Mat. Nat., IX. Ser., Rend. Lincei, Mat. Appl. 30, No. 2, 269--294 (2019; Zbl 1429.35063) Full Text: DOI arXiv
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Nonlinear nonhomogeneous boundary value problems with competition phenomena. (English) Zbl 1426.35107 Appl. Math. Optim. 80, No. 1, 251-298 (2019). Reviewer: Patrick Winkert (Berlin) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Appl. Math. Optim. 80, No. 1, 251--298 (2019; Zbl 1426.35107) Full Text: DOI arXiv Link
Gasiński, Leszek; Papageorgiou, Nikolaos S. On a nonlinear parametric Robin problem with a locally defined reaction. (English) Zbl 1426.35106 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 185, 374-387 (2019). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{L. Gasiński} and \textit{N. S. Papageorgiou}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 185, 374--387 (2019; Zbl 1426.35106) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Double-phase problems and a discontinuity property of the spectrum. (English) Zbl 1423.35289 Proc. Am. Math. Soc. 147, No. 7, 2899-2910 (2019). Reviewer: Jesús Hernández (Madrid) MSC: 35P30 35J70 35J60 35D30 35J92 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Proc. Am. Math. Soc. 147, No. 7, 2899--2910 (2019; Zbl 1423.35289) Full Text: DOI arXiv
Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca Positive solutions for singular \((p,2)\)-equations. (English) Zbl 1432.35101 Z. Angew. Math. Phys. 70, No. 3, Paper No. 72, 10 p. (2019). Reviewer: Huansong Zhou (Wuhan) MSC: 35J92 35J20 35J75 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Z. Angew. Math. Phys. 70, No. 3, Paper No. 72, 10 p. (2019; Zbl 1432.35101) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Nonlinear Dirichlet problems with unilateral growth on the reaction. (English) Zbl 1429.35064 Forum Math. 31, No. 2, 319-340 (2019). Reviewer: Leszek Gasiński (Kraków) MSC: 35J20 35J60 58E05 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Forum Math. 31, No. 2, 319--340 (2019; Zbl 1429.35064) Full Text: DOI arXiv Link
Papageorgiou, Nikolaos S.; Winkert, Patrick Solutions with sign information for nonlinear nonhomogeneous problems. (English) Zbl 1423.35096 Math. Nachr. 292, No. 4, 871-891 (2019). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{P. Winkert}, Math. Nachr. 292, No. 4, 871--891 (2019; Zbl 1423.35096) Full Text: DOI
Papageorgiou, Nikolaos S.; Scapellato, Andrea Nonlinear Robin problems with general potential and crossing reaction. (English) Zbl 1429.35066 Atti Accad. Naz. Lincei, Cl. Sci. Fis. Mat. Nat., IX. Ser., Rend. Lincei, Mat. Appl. 30, No. 1, 1-29 (2019). Reviewer: Leszek Gasiński (Kraków) MSC: 35J20 35J60 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} and \textit{A. Scapellato}, Atti Accad. Naz. Lincei, Cl. Sci. Fis. Mat. Nat., IX. Ser., Rend. Lincei, Mat. Appl. 30, No. 1, 1--29 (2019; Zbl 1429.35066) Full Text: DOI
Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. Asymmetric Robin problems with indefinite potential and concave terms. (English) Zbl 1423.35122 Adv. Nonlinear Stud. 19, No. 1, 69-87 (2019). Reviewer: Patrick Winkert (Berlin) MSC: 35J91 35J20 PDFBibTeX XMLCite \textit{N. S. Papageorgiou} et al., Adv. Nonlinear Stud. 19, No. 1, 69--87 (2019; Zbl 1423.35122) Full Text: DOI arXiv Link
Fragnelli, Genni; Mugnai, Dimitri; Papageorgiou, Nikolaos S. Robin problems for the \(p\)-Laplacian with gradient dependence. (English) Zbl 1432.35070 Discrete Contin. Dyn. Syst., Ser. S 12, No. 2, 287-295 (2019). Reviewer: Huansong Zhou (Wuhan) MSC: 35J20 35J60 35J92 PDFBibTeX XMLCite \textit{G. Fragnelli} et al., Discrete Contin. Dyn. Syst., Ser. S 12, No. 2, 287--295 (2019; Zbl 1432.35070) Full Text: DOI