Yin, Zongbin; Chen, Zhijing; Chen, Yuming; Wu, Xinxing Perturbation of distributionally chaotic operators. (English) Zbl 07390111 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 84, 15 p. (2021). Reviewer: Cătălin Badea (Villeneuve d’Ascq) MSC: 47A16 47B37 PDFBibTeX XMLCite \textit{Z. Yin} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 84, 15 p. (2021; Zbl 07390111) Full Text: DOI
Milovanović, Gradimir V.; Mir, Abdullah Comparison inequalities between rational functions with prescribed poles. (English) Zbl 1475.30004 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 83, 13 p. (2021). MSC: 30A10 30C10 PDFBibTeX XMLCite \textit{G. V. Milovanović} and \textit{A. Mir}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 83, 13 p. (2021; Zbl 1475.30004) Full Text: DOI
Gupta, Lipsy; Kundu, S. Cofinal completeness vis-á-vis hyperspaces. (English) Zbl 1479.54028 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 82, 18 p. (2021). Reviewer: Takamitsu Yamauchi (Matsuyama) MSC: 54B20 54C05 54C35 26A15 54E50 54A10 PDFBibTeX XMLCite \textit{L. Gupta} and \textit{S. Kundu}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 82, 18 p. (2021; Zbl 1479.54028) Full Text: DOI
Deolindo-Silva, J. L.; Oset Sinha, R. Geometry of surfaces in \(\mathbb{R}^5\) through projections and normal sections. (English) Zbl 1483.57035 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 81, 19 p. (2021). Reviewer: Graham Reeve (Liverpool) MSC: 57R45 53A05 58K05 PDFBibTeX XMLCite \textit{J. L. Deolindo-Silva} and \textit{R. Oset Sinha}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 81, 19 p. (2021; Zbl 1483.57035) Full Text: DOI arXiv
Villada Bedoya, J. The almost fixed point property is not invariant under isometric renormings. (English) Zbl 1477.46015 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 80, 8 p. (2021). Reviewer: Barry Turett (Rochester) MSC: 46B20 47H09 PDFBibTeX XMLCite \textit{J. Villada Bedoya}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 80, 8 p. (2021; Zbl 1477.46015) Full Text: DOI
Nowicka, Monika; Witkowski, Alfred Optimal bounds for the sine and hyperbolic tangent means. IV. (English) Zbl 1478.26025 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 79, 11 p. (2021). Reviewer: Raghib Abu-Saris (Edmonton) MSC: 26E60 26D07 PDFBibTeX XMLCite \textit{M. Nowicka} and \textit{A. Witkowski}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 79, 11 p. (2021; Zbl 1478.26025) Full Text: DOI
Ostrak, Andre On the duality of the symmetric strong diameter 2 property in Lipschitz spaces. (English) Zbl 1482.46008 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 78, 10 p. (2021). Reviewer: Abraham Rueda Zoca (Granada) MSC: 46B04 46B25 PDFBibTeX XMLCite \textit{A. Ostrak}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 78, 10 p. (2021; Zbl 1482.46008) Full Text: DOI arXiv
Magliocca, Martina Regularizing effect and decay results for a parabolic problem with repulsive superlinear first order terms. (English) Zbl 1472.35079 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 77, 32 p. (2021). MSC: 35B65 35B40 35K20 35K92 PDFBibTeX XMLCite \textit{M. Magliocca}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 77, 32 p. (2021; Zbl 1472.35079) Full Text: DOI arXiv
Miahi, Mina; Mirzaee, Farshid; Khodaei, Hamid On convex-valued G-\(m\)-monomials with applications in stability theory. (English) Zbl 1473.39043 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 76, 14 p. (2021). MSC: 39B52 47H04 54C65 47H10 39B82 47H60 PDFBibTeX XMLCite \textit{M. Miahi} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 76, 14 p. (2021; Zbl 1473.39043) Full Text: DOI
Rehman, Habib ur; Gibali, Aviv; Kumam, Poom; Sitthithakerngkiet, Kanokwan Two new extragradient methods for solving equilibrium problems. (English) Zbl 07390102 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 75, 25 p. (2021). MSC: 65Y05 65K15 68W10 47H05 47H10 PDFBibTeX XMLCite \textit{H. u. Rehman} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 75, 25 p. (2021; Zbl 07390102) Full Text: DOI
Prieto-Martínez, L. Felipe Geometric continuity of plane curves in terms of Riordan matrices and an application to the \(F\)-chordal problem. (English) Zbl 1476.53025 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 74, 15 p. (2021). MSC: 53A04 53Z30 52A10 15B99 05A99 PDFBibTeX XMLCite \textit{L. F. Prieto-Martínez}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 74, 15 p. (2021; Zbl 1476.53025) Full Text: DOI arXiv
Aziziheris, Kamal; Mamaghani, Alireza Karami Characters of odd degree and Thompson’s character degree theorem. (English) Zbl 07390100 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 73, 16 p. (2021). MSC: 20C15 PDFBibTeX XMLCite \textit{K. Aziziheris} and \textit{A. K. Mamaghani}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 73, 16 p. (2021; Zbl 07390100) Full Text: DOI
Qi, Feng; Li, Wen-Hui; Yu, Shu-Bin; Du, Xin-Yu; Guo, Bai-Ni A ratio of finitely many gamma functions and its properties with applications. (English) Zbl 1466.26009 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 39, 14 p. (2021). MSC: 26A48 05A20 26A51 26D07 26D15 33B15 PDFBibTeX XMLCite \textit{F. Qi} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 39, 14 p. (2021; Zbl 1466.26009) Full Text: DOI arXiv
Ferrando, J. C.; López-Alfonso, S. On weakly compact sets in \(C\left( X\right) \). (English) Zbl 1473.54017 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 38, 8 p. (2021). Reviewer: Marek Cúth (Praha) MSC: 54C35 54C05 46A50 PDFBibTeX XMLCite \textit{J. C. Ferrando} and \textit{S. López-Alfonso}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 38, 8 p. (2021; Zbl 1473.54017) Full Text: DOI
Langemets, Johann; Pirk, Katriin Stability of diametral diameter two properties. (English) Zbl 1506.46013 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 96, 13 p. (2021). Reviewer: Ginés López Pérez (Granada) MSC: 46B04 46B20 PDFBibTeX XMLCite \textit{J. Langemets} and \textit{K. Pirk}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 96, 13 p. (2021; Zbl 1506.46013) Full Text: DOI arXiv
Spadaro, Santi Correction to: “Free sequences and the tightness of pseudoradial spaces”. (English) Zbl 1465.54004 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 95, 1 p. (2021). MSC: 54A25 54D20 PDFBibTeX XMLCite \textit{S. Spadaro}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 95, 1 p. (2021; Zbl 1465.54004) Full Text: DOI
Ighachane, Mohamed Amine; Akkouchi, Mohamed Further refinements of Young’s type inequality for positive linear maps. (English) Zbl 1481.47020 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 94, 19 p. (2021). MSC: 47A63 47A30 15A60 PDFBibTeX XMLCite \textit{M. A. Ighachane} and \textit{M. Akkouchi}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 94, 19 p. (2021; Zbl 1481.47020) Full Text: DOI
Chaloemyotphong, Bunyawee; Kangtunyakarn, Atid A theorem for solving Banach generalized system of variational inequality problems and fixed point problem in uniformly convex and 2-uniformly smooth Banach space. (English) Zbl 1481.47074 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 93, 19 p. (2021). MSC: 47J20 47J25 47H09 PDFBibTeX XMLCite \textit{B. Chaloemyotphong} and \textit{A. Kangtunyakarn}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 93, 19 p. (2021; Zbl 1481.47074) Full Text: DOI
Chu, Wenchang Circular sums of binomial coefficients. (English) Zbl 1471.11090 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 92, 6 p. (2021). MSC: 11B65 11B39 PDFBibTeX XMLCite \textit{W. Chu}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 92, 6 p. (2021; Zbl 1471.11090) Full Text: DOI
Batır, Necdet Parametric binomial sums involving harmonic numbers. (English) Zbl 1471.11088 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 91, 25 p. (2021). MSC: 11B65 11M06 05A10 05A19 33C20 PDFBibTeX XMLCite \textit{N. Batır}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 91, 25 p. (2021; Zbl 1471.11088) Full Text: DOI arXiv
Ferrando, J. C.; Kąkol, J.; Śliwa, W. Bounded resolutions for spaces \(C_p(X)\) and a characterization in terms of \(X\). (English) Zbl 1467.54003 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 90, 15 p. (2021). Reviewer: Tomasz Natkaniec (Gdańsk) MSC: 54C30 54C35 46A03 PDFBibTeX XMLCite \textit{J. C. Ferrando} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 90, 15 p. (2021; Zbl 1467.54003) Full Text: DOI
Zhu, Ling A simple rational approximation to the generalized elliptic integral of the first kind. (English) Zbl 1467.33022 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 89, 8 p. (2021). MSC: 33E05 41A20 PDFBibTeX XMLCite \textit{L. Zhu}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 89, 8 p. (2021; Zbl 1467.33022) Full Text: DOI
Qian, Wei-Mao; Wang, Miao-Kun; Xu, Hui-Zuo; Chu, Yu-Ming Approximations for the complete elliptic integral of the second Kind. (English) Zbl 1467.33020 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 88, 11 p. (2021). MSC: 33E05 26E60 PDFBibTeX XMLCite \textit{W.-M. Qian} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 88, 11 p. (2021; Zbl 1467.33020) Full Text: DOI
Wu, Yiting; Bercu, Gabriel New refinements of Becker-Stark and Cusa-Huygens inequalities via trigonometric polynomials method. (English) Zbl 1462.26015 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 87, 12 p. (2021). MSC: 26D05 26D15 41A21 42B05 PDFBibTeX XMLCite \textit{Y. Wu} and \textit{G. Bercu}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 87, 12 p. (2021; Zbl 1462.26015) Full Text: DOI
Bravo, Jennifer; Lizama, Carlos; Rueda, Silvia Second and third order forward difference operator: what is in between? (English) Zbl 1467.39012 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 86, 20 p. (2021). MSC: 39A70 39A13 39A12 26A33 PDFBibTeX XMLCite \textit{J. Bravo} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 86, 20 p. (2021; Zbl 1467.39012) Full Text: DOI
Tian, Jing-Feng; Yang, Zhenhang; Ha, Ming-Hu; Xing, Hong-Jie A family of high order approximations of Ramanujan type for perimeter of an ellipse. (English) Zbl 1467.33021 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 85, 20 p. (2021). MSC: 33E05 26A48 26D15 40A25 41A60 PDFBibTeX XMLCite \textit{J.-F. Tian} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 85, 20 p. (2021; Zbl 1467.33021) Full Text: DOI
Bégout, Pascal; Schindler, Ian On a stationary Schrödinger equation with periodic magnetic potential. (English) Zbl 1460.35316 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 72, 32 p. (2021). MSC: 35Q55 35A01 35D30 PDFBibTeX XMLCite \textit{P. Bégout} and \textit{I. Schindler}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 72, 32 p. (2021; Zbl 1460.35316) Full Text: DOI arXiv
Zhang, Hui; Xu, Junxiang Existence and multiplicity of semiclassical states for Gross-Pitaevskii equation in dipolar quantum gases. (English) Zbl 1464.35085 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 71, 22 p. (2021). MSC: 35J20 35J61 35A15 PDFBibTeX XMLCite \textit{H. Zhang} and \textit{J. Xu}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 71, 22 p. (2021; Zbl 1464.35085) Full Text: DOI
Elduque, Eva Twisted Alexander modules of hyperplane arrangement complements. (English) Zbl 1462.32034 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 70, 28 p. (2021). Reviewer: Piotr Pokora (Kraków) MSC: 32S22 32S20 14J17 PDFBibTeX XMLCite \textit{E. Elduque}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 70, 28 p. (2021; Zbl 1462.32034) Full Text: DOI arXiv
Guliyev, V. S. Generalized Sobolev-Morrey estimates for hypoelliptic operators on homogeneous groups. (English) Zbl 1461.35109 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 69, 23 p. (2021). Reviewer: Maria Alessandra Ragusa (Catania) MSC: 35H10 35B65 35R03 42B20 42B35 43A15 43A80 35B45 PDFBibTeX XMLCite \textit{V. S. Guliyev}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 69, 23 p. (2021; Zbl 1461.35109) Full Text: DOI
Tkachuk, V. V. The space \(C_p(X)\) is cofinally Polish if and only if it is pseudocomplete. (English) Zbl 1461.54039 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 68, 10 p. (2021). Reviewer: Dimitrios Georgiou (Patras) MSC: 54C35 54C05 54G20 PDFBibTeX XMLCite \textit{V. V. Tkachuk}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 68, 10 p. (2021; Zbl 1461.54039) Full Text: DOI
Popa, Dumitru Multiple splitting property for dominated bilinear operators. (English) Zbl 1462.46055 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 67, 12 p. (2021). Reviewer: Christopher Boyd (Dublin) MSC: 46G25 47L22 47L20 PDFBibTeX XMLCite \textit{D. Popa}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 67, 12 p. (2021; Zbl 1462.46055) Full Text: DOI
Simsek, Yilmaz New integral formulas and identities involving special numbers and functions derived from certain class of special combinatorial sums. (English) Zbl 1473.11055 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 66, 14 p. (2021). MSC: 11B68 11B73 05A15 11S40 11S80 33B15 PDFBibTeX XMLCite \textit{Y. Simsek}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 66, 14 p. (2021; Zbl 1473.11055) Full Text: DOI arXiv
Lee, Jaepil Bordered Floer homology and a meridional class of knot. (English) Zbl 1462.57018 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 65, 36 p. (2021). MSC: 57K18 53D40 PDFBibTeX XMLCite \textit{J. Lee}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 65, 36 p. (2021; Zbl 1462.57018) Full Text: DOI arXiv
Chen, Huaxi; Wang, Long; Li, Tingting A note on the solvability for generalized Sylvester equations. (English) Zbl 1460.15019 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 64, 7 p. (2021). MSC: 15A24 15A06 15A09 PDFBibTeX XMLCite \textit{H. Chen} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 64, 7 p. (2021; Zbl 1460.15019) Full Text: DOI
Conejero, J. A.; Martínez-Giménez, F.; Peris, A.; Rodenas, F. Sets of periods for chaotic linear operators. (English) Zbl 1521.47018 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 63, 7 p. (2021). Reviewer: Sophie Grivaux (Villeneuve d’Ascq) MSC: 47A16 37D45 37B99 37C25 PDFBibTeX XMLCite \textit{J. A. Conejero} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 63, 7 p. (2021; Zbl 1521.47018) Full Text: DOI
Habibian, Fereidoun; Mirzasani, Najmeh; Nasr-Isfahani, Rasoul Homological properties of \(\ell^1\)-Munn Banach algebras. (English) Zbl 1480.43003 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 62, 14 p. (2021). MSC: 43A20 46M20 16D90 PDFBibTeX XMLCite \textit{F. Habibian} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 62, 14 p. (2021; Zbl 1480.43003) Full Text: DOI
Anastassiou, George A. Approximation by multivariate generalized Poisson-Cauchy type singular integral operators. (English) Zbl 07309508 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 61, 34 p. (2021). MSC: 26A15 26D15 41A17 41A35 PDFBibTeX XMLCite \textit{G. A. Anastassiou}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 61, 34 p. (2021; Zbl 07309508) Full Text: DOI
Yang, Lili; Cao, Xiaohong Property \((\omega)\) and its compact perturbations. (English) Zbl 07309507 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 60, 11 p. (2021). MSC: 47A55 PDFBibTeX XMLCite \textit{L. Yang} and \textit{X. Cao}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 60, 11 p. (2021; Zbl 07309507) Full Text: DOI
Srivastava, H. M.; Kumar, B. R. Srivatsa; Narendra, R. Some modular equations analogous to Ramanujan’s identities. (English) Zbl 1454.11078 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 59, 12 p. (2021). MSC: 11F27 33D15 PDFBibTeX XMLCite \textit{H. M. Srivastava} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 59, 12 p. (2021; Zbl 1454.11078) Full Text: DOI
Kossowski, Igor; Przeradzki, Bogdan Nonlinear equations with a generalized fractional Laplacian. (English) Zbl 1458.35454 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 58, 13 p. (2021). MSC: 35R11 35J60 35P05 47A60 47J05 PDFBibTeX XMLCite \textit{I. Kossowski} and \textit{B. Przeradzki}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 58, 13 p. (2021; Zbl 1458.35454) Full Text: DOI
Baliarsingh, P.; Mursaleen, M.; Rakočević, Vladimir A survey on the spectra of the difference operators over the Banach space \(c\). (English) Zbl 07309504 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 57, 17 p. (2021). MSC: 47A10 46A45 PDFBibTeX XMLCite \textit{P. Baliarsingh} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 57, 17 p. (2021; Zbl 07309504) Full Text: DOI
Chen, Chao-Ping Approximation formulas and inequalities for the Euler-Mascheroni constant. (English) Zbl 1468.11253 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 56, 19 p. (2021). MSC: 11Y60 41A60 PDFBibTeX XMLCite \textit{C.-P. Chen}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 56, 19 p. (2021; Zbl 1468.11253) Full Text: DOI
Ferrando, J. C.; Kąkol, J.; Leiderman, A.; Saxon, S. A. Correction to: “Distinguished \(C_p(X)\) spaces”. (English) Zbl 1472.54004 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 55, 1 p. (2021). MSC: 54C35 46A03 58D15 PDFBibTeX XMLCite \textit{J. C. Ferrando} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 55, 1 p. (2021; Zbl 1472.54004) Full Text: DOI
Fernández-Ternero, Desamparados; García-Calcines, José Manuel; Macías-Virgós, Enrique; Vilches, José Antonio Simplicial fibrations. (English) Zbl 1470.55006 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 54, 25 p. (2021). Reviewer: Timothy Porter (Llandegfan) MSC: 55U10 55R05 55M30 55R65 PDFBibTeX XMLCite \textit{D. Fernández-Ternero} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 54, 25 p. (2021; Zbl 1470.55006) Full Text: DOI arXiv
Qin, Guangzhou; Wang, Chao Lebesgue-Stieltjes combined \(\Diamond_\alpha\)-measure and integral on time scales. (English) Zbl 1458.26078 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 50, 24 p. (2021). Reviewer: Antonín Slavík (Praha) MSC: 26E70 PDFBibTeX XMLCite \textit{G. Qin} and \textit{C. Wang}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 50, 24 p. (2021; Zbl 1458.26078) Full Text: DOI
Zaprawa, Paweł; Obradović, Milutin; Tuneski, Nikola Third Hankel determinant for univalent starlike functions. (English) Zbl 1461.30048 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 49, 6 p. (2021). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{P. Zaprawa} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 49, 6 p. (2021; Zbl 1461.30048) Full Text: DOI
Shehu, Yekini; Dong, Qiao-Li; Liu, Lu-Lu Global and linear convergence of alternated inertial methods for split feasibility problems. (English) Zbl 1520.47109 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 53, 26 p. (2021). MSC: 47J25 47H05 47J20 65K15 90C25 PDFBibTeX XMLCite \textit{Y. Shehu} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 53, 26 p. (2021; Zbl 1520.47109) Full Text: DOI
Golinskii, L.; Kadets, V. Modulus support functionals, Rajchman measures and peak functions. (English) Zbl 1467.46008 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 52, 11 p. (2021). Reviewer: Dirk Werner (Berlin) MSC: 46B04 46A55 52A07 43A05 PDFBibTeX XMLCite \textit{L. Golinskii} and \textit{V. Kadets}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 52, 11 p. (2021; Zbl 1467.46008) Full Text: DOI arXiv
Piszczek, Krzysztof; Przestacki, Adam Frequent hypercyclicity of weighted composition operators on the space of smooth functions. (English) Zbl 1520.47057 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 51, 11 p. (2021). Reviewer: José Bonet (València) MSC: 47B33 47A16 46E10 PDFBibTeX XMLCite \textit{K. Piszczek} and \textit{A. Przestacki}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 51, 11 p. (2021; Zbl 1520.47057) Full Text: DOI
Caballero, Josefa; Harjani, J.; Sadarangani, K. Existence and uniqueness of positive solutions for a class of singular fractional differential equation with infinite-point boundary value conditions. (English) Zbl 1459.34011 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 48, 12 p. (2021). MSC: 34A08 34B10 34B18 47N20 34B16 PDFBibTeX XMLCite \textit{J. Caballero} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 48, 12 p. (2021; Zbl 1459.34011) Full Text: DOI
Moshtaghi, Nasrin; Saadatmandi, Abbas Polynomial-Sinc collocation method combined with the Legendre-Gauss quadrature rule for numerical solution of distributed order fractional differential equations. (English) Zbl 1461.65223 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 47, 23 p. (2021). MSC: 65L60 26A33 41A30 PDFBibTeX XMLCite \textit{N. Moshtaghi} and \textit{A. Saadatmandi}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 47, 23 p. (2021; Zbl 1461.65223) Full Text: DOI
Zhao, Tie-Hong; Wang, Miao-Kun; Chu, Yu-Ming Monotonicity and convexity involving generalized elliptic integral of the first kind. (English) Zbl 1456.33016 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 46, 13 p. (2021). Reviewer: Thomas Ernst (Uppsala) MSC: 33E05 33C05 PDFBibTeX XMLCite \textit{T.-H. Zhao} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 46, 13 p. (2021; Zbl 1456.33016) Full Text: DOI
Guo, Victor J. W. Proof of a generalization of the (C.2) supercongruence of Van Hamme. (English) Zbl 1468.33017 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 45, 13 p. (2021). MSC: 33D15 11A07 11B65 PDFBibTeX XMLCite \textit{V. J. W. Guo}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 45, 13 p. (2021; Zbl 1468.33017) Full Text: DOI
Bernal-González, Luis; Cabana, Hernán J.; García, Domingo; Maestre, Manuel; Muñoz-Fernández, Gustavo A.; Seoane-Sepúlveda, Juan B. A new approach towards estimating the \(n\)-dimensional Bohr radius. (English) Zbl 1456.32001 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 44, 10 p. (2021). MSC: 32A05 32Q02 PDFBibTeX XMLCite \textit{L. Bernal-González} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 44, 10 p. (2021; Zbl 1456.32001) Full Text: DOI
Adil Khan, Muhammad; Khan, Shahid; Pečarić, Ðilda; Pečarić, Josip New improvements of Jensen’s type inequalities via 4-convex functions with applications. (English) Zbl 1460.26026 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 43, 21 p. (2021). Reviewer: Ali Morassaei (Zanjan) MSC: 26D15 PDFBibTeX XMLCite \textit{M. Adil Khan} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 43, 21 p. (2021; Zbl 1460.26026) Full Text: DOI
Pol, R.; Zakrzewski, P. On Mazurkiewicz’s sets, thin \(\sigma\)-ideals of compact sets and the space of probability measures on the rationals. (English) Zbl 1498.03106 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 42, 16 p. (2021). MSC: 03E15 54H05 28A33 28A12 PDFBibTeX XMLCite \textit{R. Pol} and \textit{P. Zakrzewski}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 42, 16 p. (2021; Zbl 1498.03106) Full Text: DOI arXiv
García-Pacheco, Francisco Javier Lineability of the set of supporting vectors. (English) Zbl 1458.15003 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 41, 32 p. (2021). Reviewer: John D. Dixon (Ottawa) MSC: 15A03 46B87 46B20 PDFBibTeX XMLCite \textit{F. J. García-Pacheco}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 41, 32 p. (2021; Zbl 1458.15003) Full Text: DOI
Lampret, Vito Simple, accurate, asymptotic estimates for the ratio of two gamma functions. (English) Zbl 1468.11255 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 40, 10 p. (2021). MSC: 11Y60 33B15 41A60 65D20 26D07 26D20 PDFBibTeX XMLCite \textit{V. Lampret}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 2, Paper No. 40, 10 p. (2021; Zbl 1468.11255) Full Text: DOI