Çetin, Erbil; Topal, Fatma Serap; Agarwal, Ravi P. Existence of positive solutions for Lidstone boundary value problems on time scales. (English) Zbl 1514.34151 Bound. Value Probl. 2023, Paper No. 31, 20 p. (2023). MSC: 34N05 34K10 39A10 39A99 PDFBibTeX XMLCite \textit{E. Çetin} et al., Bound. Value Probl. 2023, Paper No. 31, 20 p. (2023; Zbl 1514.34151) Full Text: DOI
Liu, He; Yu, Hengguo; Dai, Chuanjun; Wang, Qi; Li, Jianbing; Agarwal, Ravi P.; Zhao, Min Dynamic analysis of a reaction-diffusion impulsive hybrid system. (English) Zbl 1433.35424 Nonlinear Anal., Hybrid Syst. 33, 353-370 (2019). MSC: 35Q92 92D25 92D40 35B10 35B09 35A02 65G40 PDFBibTeX XMLCite \textit{H. Liu} et al., Nonlinear Anal., Hybrid Syst. 33, 353--370 (2019; Zbl 1433.35424) Full Text: DOI
Agarwal, Ravi P.; Kovacs, B.; O’Regan, D. Existence of positive solutions for a fourth-order differential system. (English) Zbl 1319.34037 Ann. Pol. Math. 112, No. 3, 301-312 (2014). Reviewer: Ruyun Ma (Lanzhou) MSC: 34B18 47N20 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Ann. Pol. Math. 112, No. 3, 301--312 (2014; Zbl 1319.34037) Full Text: DOI
Wang, Guotao; Liu, Sanyang; Agarwal, Ravi P.; Zhang, Lihong Positive solutions of integral boundary value problem involving Riemann-Liouville fractional derivative. (English) Zbl 1488.34193 J. Fract. Calc. Appl. 4, No. 2, 312-321 (2013). MSC: 34B18 26A33 34A08 46N10 PDFBibTeX XMLCite \textit{G. Wang} et al., J. Fract. Calc. Appl. 4, No. 2, 312--321 (2013; Zbl 1488.34193) Full Text: Link
Yuan, Chengjun; Jiang, Daqing; O’Regan, D.; Agarwal, Ravi Multiple positive solutions to systems of nonlinear semipositone fractional differential equations with coupled boundary conditions. (English) Zbl 1340.34041 Electron. J. Qual. Theory Differ. Equ. 2012, Paper No. 13, 17 p. (2012). MSC: 34A08 34B15 34B18 34B10 34B09 PDFBibTeX XMLCite \textit{C. Yuan} et al., Electron. J. Qual. Theory Differ. Equ. 2012, Paper No. 13, 17 p. (2012; Zbl 1340.34041) Full Text: DOI
Agarwal, R. P.; Yansheng, Liu; O’Regan, D.; Congcong, Tian Positive solutions of two-point boundary value problems for fractional singular differential equations. (English. Russian original) Zbl 1263.34009 Differ. Equ. 48, No. 5, 619-629 (2012); translation from Differ. Uravn. 48, No. 5, 611-621 (2012). Reviewer: K. Rajendra Prasad (Visakhapatnam) MSC: 34A08 34B18 34B16 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Differ. Equ. 48, No. 5, 619--629 (2012; Zbl 1263.34009); translation from Differ. Uravn. 48, No. 5, 611--621 (2012) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Positive solutions for mixed problems of singular fractional differential equations. (English) Zbl 1232.26005 Math. Nachr. 285, No. 1, 27-41 (2012). MSC: 26A33 34B16 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Math. Nachr. 285, No. 1, 27--41 (2012; Zbl 1232.26005) Full Text: DOI
Ji, Caisheng; O’Regan, Donal; Yan, Baoqiang; Agarwal, Ravi P. Nonexistence and existence of positive solutions for second order singular three-point boundary value problems with derivative dependent and sign-changing nonlinearities. (English) Zbl 1223.34021 J. Appl. Math. Comput. 36, No. 1-2, 61-87 (2011). Reviewer: Smail Djebali (Algiers) MSC: 34B10 34B15 34B18 34B16 PDFBibTeX XMLCite \textit{C. Ji} et al., J. Appl. Math. Comput. 36, No. 1--2, 61--87 (2011; Zbl 1223.34021) Full Text: DOI
Kelevedjiev, P. S.; O’Regan, D.; Popivanov, N.; Agarwal, R. P. Existence results for second order boundary value problems using the barrier strip technique. (English) Zbl 1211.34024 Aequationes Math. 79, No. 3, 281-291 (2010). MSC: 34B16 34B15 34B18 PDFBibTeX XMLCite \textit{P. S. Kelevedjiev} et al., Aequationes Math. 79, No. 3, 281--291 (2010; Zbl 1211.34024) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Positive solutions for Dirichlet problems of singular nonlinear fractional differential equations. (English) Zbl 1206.34009 J. Math. Anal. Appl. 371, No. 1, 57-68 (2010). Reviewer: Gisèle M. Mophou (Pointe-à-Pitre) MSC: 34A08 34B18 34B16 47N20 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., J. Math. Anal. Appl. 371, No. 1, 57--68 (2010; Zbl 1206.34009) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Wong, Patricia J. Y. Constant-sign solutions for systems of singular integral equations of Hammerstein type. (English) Zbl 1193.45023 Math. Comput. Modelling 50, No. 7-8, 999-1025 (2009). Reviewer: Martin Väth (Praha) MSC: 45G15 45G05 47H07 34B15 34B16 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Math. Comput. Modelling 50, No. 7--8, 999--1025 (2009; Zbl 1193.45023) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Positive and maximal positive solutions of singular mixed boundary value problem. (English) Zbl 1193.34039 Cent. Eur. J. Math. 7, No. 4, 694-716 (2009). Reviewer: Smail Djebali (Algiers) MSC: 34B16 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Cent. Eur. J. Math. 7, No. 4, 694--716 (2009; Zbl 1193.34039) Full Text: DOI
Yang, Zhilin; O’Regan, Donal; Agarwal, Ravi P. Positive solutions of a second-order boundary value problem via integro-differential equation arguments. (English) Zbl 1181.34034 Appl. Anal. 88, No. 8, 1197-1211 (2009). MSC: 34B18 34B15 45J05 PDFBibTeX XMLCite \textit{Z. Yang} et al., Appl. Anal. 88, No. 8, 1197--1211 (2009; Zbl 1181.34034) Full Text: DOI
Agarwal, Ravi P.; Mustafa, Octavian G.; Popescu, Liviu On the positive solutions of certain semi-linear elliptic equations. (English) Zbl 1187.34033 Bull. Belg. Math. Soc. - Simon Stevin 16, No. 1, 49-57 (2009). Reviewer: Mats Ehrnström (Hannover) MSC: 34B18 34B05 35J60 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Bull. Belg. Math. Soc. - Simon Stevin 16, No. 1, 49--57 (2009; Zbl 1187.34033) Full Text: Euclid
Palamides, Panos K.; Agarwal, Ravi P. An existence theorem for a singular third-order boundary value problem on \([0,+\infty)\). (English) Zbl 1206.34042 Appl. Math. Lett. 21, No. 12, 1254-1259 (2008). Reviewer: Sergei A. Brykalov (Ekaterinburg) MSC: 34B16 34B40 PDFBibTeX XMLCite \textit{P. K. Palamides} and \textit{R. P. Agarwal}, Appl. Math. Lett. 21, No. 12, 1254--1259 (2008; Zbl 1206.34042) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Dead cores of singular Dirichlet boundary value problems with \(\phi \)-Laplacian. (English) Zbl 1199.34076 Appl. Math., Praha 53, No. 4, 381-399 (2008). MSC: 34B16 34B18 34B09 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Appl. Math., Praha 53, No. 4, 381--399 (2008; Zbl 1199.34076) Full Text: DOI EuDML Link
Agarwal, R. P.; Manojlović, J. V. Asymptotic behaviour of positive solutions of fourth-order nonlinear difference equations. (English) Zbl 1164.39304 Ukr. Mat. Zh. 60, No. 1, 8-27 (2008) and Ukr. Math. J. 60, No. 1, 6-28 (2008). MSC: 39A30 39A10 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{J. V. Manojlović}, Ukr. Mat. Zh. 60, No. 1, 8--27 (2008; Zbl 1164.39304) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Positive solutions of non-positone Dirichlet boundary value problems with singularities in the phase variables. (English) Zbl 1146.34017 Math. Nachr. 281, No. 5, 612-625 (2008). Reviewer: Minghe Pei (Jilin) MSC: 34B18 34B16 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Math. Nachr. 281, No. 5, 612--625 (2008; Zbl 1146.34017) Full Text: DOI
Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. Existence to singular boundary value problems with sign changing nonlinearities using an approximation method approach. (English) Zbl 1164.34351 Appl. Math., Praha 52, No. 2, 117-135 (2007). MSC: 34B16 34B15 PDFBibTeX XMLCite \textit{H. Lü} et al., Appl. Math., Praha 52, No. 2, 117--135 (2007; Zbl 1164.34351) Full Text: DOI EuDML Link
Agarwal, Ravi P.; Staněk, Svatoslav Positive solutions of singular boundary value problems for delay differential equations. (English) Zbl 1163.34042 Dyn. Syst. Appl. 16, No. 4, 755-770 (2007). Reviewer: Mirosława Zima (Rzeszow) MSC: 34K10 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{S. Staněk}, Dyn. Syst. Appl. 16, No. 4, 755--770 (2007; Zbl 1163.34042)
Agarwal, Ravi P.; O’Regan, Donal; Wong, Patricia J. Y. Constant-sign solutions of a system of integral equations with integrable singularities. (English) Zbl 1136.45007 J. Integral Equations Appl. 19, No. 2, 117-142 (2007). Reviewer: Kai Diethelm (Braunschweig) MSC: 45G15 45M20 45G05 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., J. Integral Equations Appl. 19, No. 2, 117--142 (2007; Zbl 1136.45007) Full Text: DOI
Agarwal, Ravi P.; Mustafa, Octavian G. A Riccatian approach to the decay of solutions of certain semi-linear PDE’s. (English) Zbl 1137.35356 Appl. Math. Lett. 20, No. 12, 1206-1210 (2007). MSC: 35J60 35B40 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{O. G. Mustafa}, Appl. Math. Lett. 20, No. 12, 1206--1210 (2007; Zbl 1137.35356) Full Text: DOI
Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. Existence to singular discrete boundary value problems with sign changing nonlinearities using approximation methods. (English) Zbl 1127.34009 Stud. Sci. Math. Hung. 44, No. 1, 81-95 (2007). MSC: 34B16 39A10 PDFBibTeX XMLCite \textit{H. Lü} et al., Stud. Sci. Math. Hung. 44, No. 1, 81--95 (2007; Zbl 1127.34009) Full Text: DOI
Yan, Baoqiang; O’Regan, Donal; Agarwal, Ravi P. Multiple positive solutions via index theory for singular boundary value problems with derivative dependence. (English) Zbl 1133.34018 Positivity 11, No. 4, 687-720 (2007). Reviewer: Smail Djebali (Algiers) MSC: 34B18 34B16 34B15 PDFBibTeX XMLCite \textit{B. Yan} et al., Positivity 11, No. 4, 687--720 (2007; Zbl 1133.34018) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Positive and dead core solutions of singular Dirichlet boundary value problems with \(\varphi\)-Laplacian. (English) Zbl 1134.34010 Comput. Math. Appl. 54, No. 2, 255-266 (2007). Reviewer: Jan Tomeček (Olomouc) MSC: 34B16 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Comput. Math. Appl. 54, No. 2, 255--266 (2007; Zbl 1134.34010) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Tisdell, Christopher C.; Wong, Patricia J. Y. Constant-sign solutions of a system of Volterra integral equations. (English) Zbl 1130.45006 Comput. Math. Appl. 54, No. 1, 58-75 (2007). Reviewer: Martin Väth (Gießen) MSC: 45G15 45M20 47H07 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Comput. Math. Appl. 54, No. 1, 58--75 (2007; Zbl 1130.45006) Full Text: DOI
Yan, Baoqiang; O’Regan, Donal; Agarwal, Ravi P. Multiple positive solutions of singular second order boundary value problems with derivative dependence. (English) Zbl 1135.34015 Aequationes Math. 74, No. 1-2, 62-89 (2007). Reviewer: Eric R. Kaufmann (Little Rock) MSC: 34B18 34B16 34B15 PDFBibTeX XMLCite \textit{B. Yan} et al., Aequationes Math. 74, No. 1--2, 62--89 (2007; Zbl 1135.34015) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Yan, Baoqiang Positive solutions for singular boundary value problems with sign changing nonlinearities depending on \(x^{\prime}\) via index theory. (English) Zbl 1153.34013 Appl. Anal. 86, No. 1, 19-39 (2007). Reviewer: Svatoslav Staněk (Olomouc) MSC: 34B16 34B18 47N20 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Appl. Anal. 86, No. 1, 19--39 (2007; Zbl 1153.34013) Full Text: DOI
Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. Positive solutions for non-resonant singular boundary-value problems with a linear term. (English) Zbl 1128.34012 Proc. Edinb. Math. Soc., II. Ser. 50, No. 1, 217-228 (2007). Reviewer: Mirosława Zima (Rzeszow) MSC: 34B18 34B15 34B16 PDFBibTeX XMLCite \textit{H. Lü} et al., Proc. Edinb. Math. Soc., II. Ser. 50, No. 1, 217--228 (2007; Zbl 1128.34012) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Wong, Patricia J. Y. Constant-sign solutions of systems of higher order boundary value problems with integrable singularities. (English) Zbl 1146.34015 Math. Comput. Modelling 44, No. 11-12, 983-1008 (2006). Reviewer: Ruyun Ma (Lanzhou) MSC: 34B16 34B15 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Math. Comput. Modelling 44, No. 11--12, 983--1008 (2006; Zbl 1146.34015) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal Positive solutions for a class of Volterra integral equations via a fixed point theorem in Fréchet spaces. (English) Zbl 1108.45007 Topol. Methods Nonlinear Anal. 28, No. 1, 189-198 (2006). Reviewer: Mouffak Benchohra (Sidi Bel Abbes) MSC: 45M20 45G10 34A34 47H10 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Topol. Methods Nonlinear Anal. 28, No. 1, 189--198 (2006; Zbl 1108.45007) Full Text: Link
Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. An eigenvalue interval of solutions for a singular discrete boundary value problem with sign changing nonlinearities. (English) Zbl 1127.39035 J. Difference Equ. Appl. 12, No. 7, 717-730 (2006). Reviewer: Marat Akhmet (Ankara) MSC: 39A12 39A11 34B16 PDFBibTeX XMLCite \textit{H. Lü} et al., J. Difference Equ. Appl. 12, No. 7, 717--730 (2006; Zbl 1127.39035) Full Text: DOI
Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. A positive solution for singular discrete boundary value problems with sign-changing nonlinearities. (English) Zbl 1099.39008 J. Appl. Math. Stochastic Anal. 2006, No. 1, Article ID 46287, 14 p. (2006). Reviewer: Bogdan Sasu (Timişoara) MSC: 39A11 39A12 34B15 PDFBibTeX XMLCite \textit{H. Lü} et al., J. Appl. Math. Stochastic Anal. 2006, No. 1, Article ID 46287, 14 p. (2006; Zbl 1099.39008) Full Text: DOI EuDML
Agarwal, Ravi P.; Cao, Daomin; Lü, Haishen; O’Regan, Donal Existence and multiplicity of positive solutions for singular semipositone \(p\)-Laplacian equations. (English) Zbl 1122.34014 Can. J. Math. 58, No. 3, 449-475 (2006). Reviewer: Pierpaolo Omari (Trieste) MSC: 34B18 34B15 34B16 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Can. J. Math. 58, No. 3, 449--475 (2006; Zbl 1122.34014) Full Text: DOI
Agarwal, Ravi P.; Grace, Said R.; O’Regan, Donal On the oscillation of certain third-order difference equations. (English) Zbl 1107.39004 Adv. Difference Equ. 2005, No. 3, 345-367 (2005). Reviewer: Sui Sun Cheng (Hsinchu) MSC: 39A11 39A12 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Adv. Difference Equ. 2005, No. 3, 345--367 (2005; Zbl 1107.39004) Full Text: DOI EuDML
Lin, Xiaoning; Jiang, Daqing; O’Regan, Donal; Agarwal, Ravi P. Twin positive periodic solutions of second order singular differential systems. (English) Zbl 1098.34032 Topol. Methods Nonlinear Anal. 25, No. 2, 263-273 (2005). Reviewer: Pierpaolo Omari (Trieste) MSC: 34C25 34B15 34B18 34B16 47H10 PDFBibTeX XMLCite \textit{X. Lin} et al., Topol. Methods Nonlinear Anal. 25, No. 2, 263--273 (2005; Zbl 1098.34032) Full Text: DOI
Jiang, Daqing; O’Regan, Donal; Agarwal, Ravi P.; Xu, Xiaojie On the number of positive periodic solutions of functional differential equations and population models. (English) Zbl 1087.34046 Math. Models Methods Appl. Sci. 15, No. 4, 555-573 (2005). Reviewer: Hai-Feng Huo (Lanzhou) MSC: 34K13 92D25 PDFBibTeX XMLCite \textit{D. Jiang} et al., Math. Models Methods Appl. Sci. 15, No. 4, 555--573 (2005; Zbl 1087.34046) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Wong, Patricia J. Y. Constant-sign solutions of a system of integral equations: the semipositone and singular case. (English) Zbl 1081.45002 Asymptotic Anal. 43, No. 1-2, 47-74 (2005). Reviewer: Ulrich Kosel (Freiberg) MSC: 45G15 45M20 45B05 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Asymptotic Anal. 43, No. 1--2, 47--74 (2005; Zbl 1081.45002)
Agarwal, Ravi P.; Meehan, Maria; O’Regan, Donal Positive solutions of singular integral equations – a survey. (English) Zbl 1076.45001 Dyn. Syst. Appl. 14, No. 1, 1-38 (2005). Reviewer: Ulrich Kosel (Freiberg) MSC: 45G05 45M20 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Dyn. Syst. Appl. 14, No. 1, 1--38 (2005; Zbl 1076.45001)
Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. Existence theorems for the one-dimensional singular \(p\)-Laplacian equation with a nonlinear boundary condition. (English) Zbl 1071.34019 J. Comput. Appl. Math. 182, No. 1, 188-210 (2005). MSC: 34B16 PDFBibTeX XMLCite \textit{H. Lü} et al., J. Comput. Appl. Math. 182, No. 1, 188--210 (2005; Zbl 1071.34019) Full Text: DOI
Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. Upper and lower solutions for the singular \(p\)-Laplacian with sign changing nonlinearities and nonlinear boundary data. (English) Zbl 1082.34022 J. Comput. Appl. Math. 181, No. 2, 442-466 (2005). Reviewer: Petio S. Kelevedjiev (Sliven) MSC: 34B18 34B15 34B16 PDFBibTeX XMLCite \textit{H. Lü} et al., J. Comput. Appl. Math. 181, No. 2, 442--466 (2005; Zbl 1082.34022) Full Text: DOI
Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. Positive solutions for singular \(p\)-Laplacian equations with sign changing nonlinearities using inequality theory. (English) Zbl 1071.34018 Appl. Math. Comput. 165, No. 3, 587-597 (2005). MSC: 34B16 34B18 PDFBibTeX XMLCite \textit{H. Lü} et al., Appl. Math. Comput. 165, No. 3, 587--597 (2005; Zbl 1071.34018) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Solvability of singular Dirichlet boundary-value problems with given maximal values for positive solutions. (English) Zbl 1066.34017 Proc. Edinb. Math. Soc., II. Ser. 48, No. 1, 1-19 (2005). MSC: 34B16 34B18 34B15 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Proc. Edinb. Math. Soc., II. Ser. 48, No. 1, 1--19 (2005; Zbl 1066.34017) Full Text: DOI
Jiang, Daqing; Zhang, Lili; O’Regan, Donal; Agarwal, Ravi P. Existence theory for single and multiple solutions to singular positone discrete Dirichlet boundary value problems to the one-dimension \(p\)-Laplacian. (English) Zbl 1113.39022 Arch. Math., Brno 40, No. 4, 367-381 (2004). Reviewer: Ondřej Došlý (Brno) MSC: 39A12 34B15 39A11 PDFBibTeX XMLCite \textit{D. Jiang} et al., Arch. Math., Brno 40, No. 4, 367--381 (2004; Zbl 1113.39022) Full Text: EuDML EMIS
Jiang, Daqing; Xu, Xiaojie; O’Regan, Donal; Agarwal, Ravi P. Multiple positive solutions to semipositone Dirichlet boundary value problems with singular dependent nonlinearities. (English) Zbl 1070.34037 Fasc. Math. 34, 25-37 (2004). Reviewer: Yavdat Ilyasov (Ufa) MSC: 34B18 34B15 34B16 PDFBibTeX XMLCite \textit{D. Jiang} et al., Fasc. Math. 34, 25--37 (2004; Zbl 1070.34037)
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Existence of positive solutions for boundary-value problems with singularities in phase variables. (English) Zbl 1060.34012 Proc. Edinb. Math. Soc., II. Ser. 47, No. 1, 1-13 (2004). MSC: 34B16 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Proc. Edinb. Math. Soc., II. Ser. 47, No. 1, 1--13 (2004; Zbl 1060.34012) Full Text: DOI
Fan, Meng; Ye, Dan; Wong, Patricia J. Y.; Agarwal, Ravi P. Periodicity in a class of non-autonomous scalar equations with deviating arguments and applications to population models. (English) Zbl 1062.34073 Dyn. Syst. 19, No. 3, 279-301 (2004). MSC: 34K13 92D25 39A12 PDFBibTeX XMLCite \textit{M. Fan} et al., Dyn. Syst. 19, No. 3, 279--301 (2004; Zbl 1062.34073) Full Text: DOI
Agarwal, R. P.; Staněk, S. Nonnegative solutions of singular boundary value problems with sign changing nonlinearities. (English) Zbl 1156.34310 Comput. Math. Appl. 46, No. 12, 1827-1837 (2003). MSC: 34B16 34B15 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{S. Staněk}, Comput. Math. Appl. 46, No. 12, 1827--1837 (2003; Zbl 1156.34310) Full Text: DOI
Agarwal, Ravi P.; Lü, Haishen; O’Regan, Donal Positive solutions for the boundary value problem \((| u''|^{p-2} u'')''-\lambda q(t) f(u(t))= 0\). (English) Zbl 1161.34315 Mem. Differ. Equ. Math. Phys. 28, 33-44 (2003). MSC: 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Mem. Differ. Equ. Math. Phys. 28, 33--44 (2003; Zbl 1161.34315)
Jiang, Daqing; Agarwal, R. P. Existence of positive periodic solutions for a class of difference equations with several deviating arguments. (English) Zbl 1052.39008 Comput. Math. Appl. 45, No. 6-9, 1303-1309 (2003). Reviewer: Vladimir Răsvan (Compiègne) MSC: 39A11 39A12 PDFBibTeX XMLCite \textit{D. Jiang} and \textit{R. P. Agarwal}, Comput. Math. Appl. 45, No. 6--9, 1303--1309 (2003; Zbl 1052.39008) Full Text: DOI
Li, Wan-Tong; Agarwal, R. P. Positive solutions of higher-order nonlinear delay difference equations. (English) Zbl 1054.39006 Comput. Math. Appl. 45, No. 6-9, 1203-1211 (2003). Reviewer: Axel Riese (Linz) MSC: 39A11 PDFBibTeX XMLCite \textit{W.-T. Li} and \textit{R. P. Agarwal}, Comput. Math. Appl. 45, No. 6--9, 1203--1211 (2003; Zbl 1054.39006) Full Text: DOI
Agarwal, R. P.; Grace, S. R.; O’Regan, D. Discrete semipositone higher-order equations. (English) Zbl 1060.39011 Comput. Math. Appl. 45, No. 6-9, 1171-1179 (2003). Reviewer: Dobiesław Bobrowski (Poznań) MSC: 39A12 34B15 39A11 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Comput. Math. Appl. 45, No. 6--9, 1171--1179 (2003; Zbl 1060.39011) Full Text: DOI
Jiang, Daqing; O’Regan, Donal; Agarwal, Ravi P. Existence theory for single and multiple solutions to singular boundary value problems for the one-dimension \(p\)-Laplacian. (English) Zbl 1052.34027 Adv. Math. Sci. Appl. 13, No. 1, 179-199 (2003). Reviewer: Svatoslav Staněk (Olomouc) MSC: 34B16 34B18 34B15 PDFBibTeX XMLCite \textit{D. Jiang} et al., Adv. Math. Sci. Appl. 13, No. 1, 179--199 (2003; Zbl 1052.34027)
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Singular Lidstone boundary value problem with given maximal values for solutions. (English) Zbl 1055.34040 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 55, No. 7-8, 859-881 (2003). Reviewer: Petio S. Kelevedjiev (Sliven) MSC: 34B16 34B15 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 55, No. 7--8, 859--881 (2003; Zbl 1055.34040) Full Text: DOI
Jiang, Daqing; Chu, Jifeng; O’Regan, Donal; Agarwal, Ravi P. Multiple positive solutions to superlinear periodic boundary value problems with repulsive singular forces. (English) Zbl 1042.34047 J. Math. Anal. Appl. 286, No. 2, 563-576 (2003). Reviewer: Alessandro Fonda (Trieste) MSC: 34B18 PDFBibTeX XMLCite \textit{D. Jiang} et al., J. Math. Anal. Appl. 286, No. 2, 563--576 (2003; Zbl 1042.34047) Full Text: DOI
Agarwal, Ravi P.; Lü, Haishen; O’Regan, Donal Existence theorems for the one-dimensional singular \(p\)-Laplacian equation with sign changing nonlinearities. (English) Zbl 1031.34023 Appl. Math. Comput. 143, No. 1, 15-38 (2003). MSC: 34B16 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Appl. Math. Comput. 143, No. 1, 15--38 (2003; Zbl 1031.34023) Full Text: DOI
Jiang, Daqing; Zhang, Lili; O’Regan, Donal; Agarwal, Ravi P. Existence theory for single and multiple solutions to semipositone discrete Dirichlet boundary value problems with singular dependent nonlinearities. (English) Zbl 1026.39002 J. Appl. Math. Stochastic Anal. 16, No. 1, 19-31 (2003). Reviewer: Lothar Berg (Rostock) MSC: 39A10 PDFBibTeX XMLCite \textit{D. Jiang} et al., J. Appl. Math. Stochastic Anal. 16, No. 1, 19--31 (2003; Zbl 1026.39002) Full Text: DOI EuDML
Agarwal, Ravi P.; O’Regan, Donal; Staněk, Svatoslav Positive solutions of singular problems with sign changing Carathéodory nonlinearities depending on \(x'\). (English) Zbl 1028.34026 J. Math. Anal. Appl. 279, No. 2, 597-616 (2003). Reviewer: Jan Andres (Olomouc) MSC: 34B18 34B16 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., J. Math. Anal. Appl. 279, No. 2, 597--616 (2003; Zbl 1028.34026) Full Text: DOI
Agarwal, R. P.; O’Regan, Donal Boundary value problems with sign changing nonlinearities for second order singular ordinary differential equations. (English) Zbl 1033.34020 Appl. Anal. 81, No. 6, 1329-1346 (2002). Reviewer: Petio S. Kelevedjiev (Sliven) MSC: 34B15 34B16 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Appl. Anal. 81, No. 6, 1329--1346 (2002; Zbl 1033.34020) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal Singular integral equations arising in Homann flow. (English) Zbl 1030.45002 Dyn. Contin. Discrete Impuls. Syst., Ser. B, Appl. Algorithms 9, No. 4, 481-488 (2002). Reviewer: Nikolai K.Karapetyants (Rostov-na-Donu) MSC: 45G05 34B18 76D05 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Dyn. Contin. Discrete Impuls. Syst., Ser. B, Appl. Algorithms 9, No. 4, 481--488 (2002; Zbl 1030.45002)
Jiang, Daqing; Agarwal, R. P. A uniqueness and existence theorem for a singular third-order boundary value problem on \([0,\infty)\). (English) Zbl 1021.34020 Appl. Math. Lett. 15, No. 4, 445-451 (2002). MSC: 34B40 34B16 34B15 34B60 34B18 76S05 PDFBibTeX XMLCite \textit{D. Jiang} and \textit{R. P. Agarwal}, Appl. Math. Lett. 15, No. 4, 445--451 (2002; Zbl 1021.34020) Full Text: DOI
Agarwal, Ravi P.; Meehan, Maria; O’Regan, Donal Positive \(L^2\) and continuous solutions for Fredholm integral inclusions. (English) Zbl 1017.45003 Agarwal, Ravi P. (ed.) et al., Set valued mappings with applications in nonlinear analysis. London: Taylor & Francis. Ser. Math. Anal. Appl. 4, 1-9 (2002). Reviewer: Som Prakash Goyal (Jaipur) MSC: 45G10 45M20 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Ser. Math. Anal. Appl. 4, 1--9 (2002; Zbl 1017.45003)
Agarwal, R. P.; O’Regan, Donal; Lakshmikantham, V.; Leela, S. An upper and lower solution theory for singular Emden-Fowler equations. (English) Zbl 1011.34013 Nonlinear Anal., Real World Appl. 3, No. 2, 275-291 (2002). Reviewer: Petio S.Kelevedjiev (Sliven) MSC: 34B18 34B16 34B15 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Nonlinear Anal., Real World Appl. 3, No. 2, 275--291 (2002; Zbl 1011.34013) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal Existence of positive solutions to time scale equations using time scale inequalities. (English) Zbl 1002.45004 J. Difference Equ. Appl. 7, No. 6, 829-836 (2001). Reviewer: Gustaf Gripenberg (Hut) MSC: 45G10 45M20 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, J. Difference Equ. Appl. 7, No. 6, 829--836 (2001; Zbl 1002.45004) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal Nonlinear boundary value problems on time scales. (English) Zbl 0995.34016 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 44, No. 4, 527-535 (2001). Reviewer: Roman Hilscher (East Lansing) MSC: 34B18 34B45 39A99 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 44, No. 4, 527--535 (2001; Zbl 0995.34016) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal; Lakshmikantham, V. Singular \((p,n-p)\) focal and \((n,p)\) higher order boundary value problems. (English) Zbl 0977.34017 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 42, No. 2, 215-228 (2000). Reviewer: Irena Rachůnková (Olomouc) MSC: 34B16 34B18 34C10 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 42, No. 2, 215--228 (2000; Zbl 0977.34017) Full Text: DOI
Agarwal, R. P.; O’Regan, D. Singular Volterra integral equations. (English) Zbl 0947.45006 Appl. Math. Lett. 13, No. 1, 115-120 (2000). Reviewer: Gustaf Gripenberg (Hut) MSC: 45G05 45M20 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Appl. Math. Lett. 13, No. 1, 115--120 (2000; Zbl 0947.45006) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal Second and higher order boundary value problems of nonsingular type. (English) Zbl 0954.34012 Bull. Belg. Math. Soc. - Simon Stevin 7, No. 1, 43-52 (2000). Reviewer: Andrei Ronto (Kyïv) MSC: 34B18 34B15 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Bull. Belg. Math. Soc. - Simon Stevin 7, No. 1, 43--52 (2000; Zbl 0954.34012)
Agarwal, Ravi P.; O’Regan, Donal Nonpositone discrete boundary value problems. (English) Zbl 0937.39001 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 39, No. 2, 207-215 (2000). Reviewer: Lothar Berg (Rostock) MSC: 39A10 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 39, No. 2, 207--215 (2000; Zbl 0937.39001) Full Text: DOI
Agarwal, R. P.; O’Regan, D. Existence of solutions to singular integral equations. (English) Zbl 0934.45004 Comput. Math. Appl. 37, No. 9, 25-29 (1999). Reviewer: N.K.Karapetyants (Rostov-na-Donu) MSC: 45G05 45M20 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Comput. Math. Appl. 37, No. 9, 25--29 (1999; Zbl 0934.45004) Full Text: DOI
Wong, Patricia J. Y.; Agarwal, Ravi P. Eigenvalues of Lidstone boundary value problems. (English) Zbl 0933.65089 Appl. Math. Comput. 104, No. 1, 15-31 (1999). Reviewer: T.Regińska (Warszawa) MSC: 65L15 34B15 34L16 34L30 34B18 PDFBibTeX XMLCite \textit{P. J. Y. Wong} and \textit{R. P. Agarwal}, Appl. Math. Comput. 104, No. 1, 15--31 (1999; Zbl 0933.65089) Full Text: DOI
Wong, Patricia J. Y.; Agarwal, Ravi P. On the eigenvalues of boundary value problems for higher order difference equations. (English) Zbl 0930.39005 Rocky Mt. J. Math. 28, No. 2, 767-791 (1998). Reviewer: V.I.Tkachenko (Kyïv) MSC: 39A10 39A11 PDFBibTeX XMLCite \textit{P. J. Y. Wong} and \textit{R. P. Agarwal}, Rocky Mt. J. Math. 28, No. 2, 767--791 (1998; Zbl 0930.39005) Full Text: DOI Link
Agarwal, Ravi P.; Wong, Fu-Hsiang Existence of positive solutions for higher order boundary value problems. (English) Zbl 0928.34016 Nonlinear Stud. 5, No. 1, 15-24 (1998). Reviewer: Yujun Dong (Nanjing) MSC: 34B05 34B18 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{F.-H. Wong}, Nonlinear Stud. 5, No. 1, 15--24 (1998; Zbl 0928.34016)
Wong, P. J. Y.; Agarwal, R. P. On the existence of positive solutions of higher order difference equations. (English) Zbl 0914.39005 Topol. Methods Nonlinear Anal. 10, No. 2, 339-351 (1997). Reviewer: S.Balint (Timişoara) MSC: 39A10 PDFBibTeX XMLCite \textit{P. J. Y. Wong} and \textit{R. P. Agarwal}, Topol. Methods Nonlinear Anal. 10, No. 2, 339--351 (1997; Zbl 0914.39005) Full Text: DOI
Agarwal, R. P.; Wong, Fu-Hsiang Existence of positive solutions for nonpositive difference equations. (English) Zbl 0889.39011 Math. Comput. Modelling 26, No. 7, 77-85 (1997). Reviewer: D.Bobrowski (Poznań) MSC: 39A12 39A10 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{F.-H. Wong}, Math. Comput. Modelling 26, No. 7, 77--85 (1997; Zbl 0889.39011) Full Text: DOI
Agarwal, Ravi P.; O’Regan, Donal Some new existence results for differential and integral equations. (English) Zbl 0878.45001 Nonlinear Anal., Theory Methods Appl. 29, No. 6, 679-692 (1997). Reviewer: P.Talpalaru (Iaşi) MSC: 45G10 34B15 34K05 45M20 45G05 PDFBibTeX XMLCite \textit{R. P. Agarwal} and \textit{D. O'Regan}, Nonlinear Anal., Theory Methods Appl. 29, No. 6, 679--692 (1997; Zbl 0878.45001) Full Text: DOI
Agarwal, Ravi P.; Wong, Fu-Hsiang; Lian, Wei-Cheng Existence of positive solutions of nonlinear second order differential systems. (English) Zbl 0886.34012 Appl. Anal. 63, No. 3-4, 375-387 (1996). Reviewer: O.Došlý (Brno) MSC: 34B15 PDFBibTeX XMLCite \textit{R. P. Agarwal} et al., Appl. Anal. 63, No. 3--4, 375--387 (1996; Zbl 0886.34012) Full Text: DOI
Wong, Patricia J. Y.; Agarwal, Ravi P. Oscillatory and asymptotically monotone solutions of second-order quasilinear differential equations. (English) Zbl 0872.34020 Appl. Math. Comput. 79, No. 2-3, 207-237 (1996). Reviewer: Charles A.Swanson (Vancouver) MSC: 34C10 34C11 PDFBibTeX XMLCite \textit{P. J. Y. Wong} and \textit{R. P. Agarwal}, Appl. Math. Comput. 79, No. 2--3, 207--237 (1996; Zbl 0872.34020) Full Text: DOI
Wong, Patricia J. Y.; Agarwal, Ravi P. Oscillation and monotone solutions of second order quasilinear difference equations. (English) Zbl 0871.39005 Funkc. Ekvacioj, Ser. Int. 39, No. 3, 491-517 (1996). Reviewer: V.I.Tkachenko (Kiev) MSC: 39A12 39A10 PDFBibTeX XMLCite \textit{P. J. Y. Wong} and \textit{R. P. Agarwal}, Funkc. Ekvacioj, Ser. Int. 39, No. 3, 491- 517 (1996; Zbl 0871.39005)
Wong, P. J. Y.; Agarwal, R. P. Oscillation theorems and existence of positive monotone solutions for second order nonlinear difference equations. (English) Zbl 0820.39002 Math. Comput. Modelling 21, No. 3, 63-84 (1995). Reviewer: E.Thandapani (Salem) MSC: 39A10 PDFBibTeX XMLCite \textit{P. J. Y. Wong} and \textit{R. P. Agarwal}, Math. Comput. Modelling 21, No. 3, 63--84 (1995; Zbl 0820.39002) Full Text: DOI