Xu, Jiafa; Liu, Jie; O’Regan, Donal Solvability for a Hadamard-type fractional integral boundary value problem. (English) Zbl 07781192 Nonlinear Anal., Model. Control 28, No. 4, 672-696 (2023). Reviewer: Abdelghani Ouahab (Sidi bel Abbès) MSC: 34A08 34B10 34B18 47H10 PDFBibTeX XMLCite \textit{J. Xu} et al., Nonlinear Anal., Model. Control 28, No. 4, 672--696 (2023; Zbl 07781192) Full Text: Link
Guo, Limin; Liu, Haimei; Li, Cheng; Zhao, Jingbo; Xu, Jiafa Existence of positive solutions for singular \(p\)-Laplacian Hadamard fractional differential equations with the derivative term contained in the nonlinear term. (English) Zbl 07705290 Nonlinear Anal., Model. Control 28, No. 3, 491-515 (2023). Reviewer: Alberto Cabada (Santiago de Compostela) MSC: 34B18 34A08 34B10 34B27 34L05 34L10 34B16 PDFBibTeX XMLCite \textit{L. Guo} et al., Nonlinear Anal., Model. Control 28, No. 3, 491--515 (2023; Zbl 07705290) Full Text: DOI
Xu, Jiafa; Luo, Honglin; Liu, Lishan Positive solutions for a class of fractional difference equations boundary value problems with \(p\)-Laplacian operator. (Chinese. English summary) Zbl 1499.39068 Acta Math. Sci., Ser. A, Chin. Ed. 41, No. 2, 402-414 (2021). MSC: 39A27 39A13 26A33 PDFBibTeX XMLCite \textit{J. Xu} et al., Acta Math. Sci., Ser. A, Chin. Ed. 41, No. 2, 402--414 (2021; Zbl 1499.39068)
Hao, Xinan; O’Regan, Donal; Xu, Jiafa Positive solutions for a system of \(2n\)th-order boundary value problems involving semipositone nonlinearities. (English) Zbl 1503.34072 J. Inequal. Appl. 2020, Paper No. 20, 17 p. (2020). MSC: 34B18 34B15 34B10 47N20 PDFBibTeX XMLCite \textit{X. Hao} et al., J. Inequal. Appl. 2020, Paper No. 20, 17 p. (2020; Zbl 1503.34072) Full Text: DOI
Xu, Jiafa; Goodrich, Christopher S.; Cui, Yujun Positive solutions for a system of first-order discrete fractional boundary value problems with semipositone nonlinearities. (English) Zbl 1417.39030 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 113, No. 2, 1343-1358 (2019). MSC: 39A14 26A33 PDFBibTeX XMLCite \textit{J. Xu} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 113, No. 2, 1343--1358 (2019; Zbl 1417.39030) Full Text: DOI
Cheng, Wei; Xu, Jiafa; O’Regan, Donal Positive solutions for a system of fractional integral boundary value problems. (English) Zbl 1413.34012 Math. Appl. 31, No. 2, 341-349 (2018). MSC: 34A08 34B18 34B10 47N20 34A45 PDFBibTeX XMLCite \textit{W. Cheng} et al., Math. Appl. 31, No. 2, 341--349 (2018; Zbl 1413.34012)
Cheng, Wei; Xu, Jiafa Existence of positive solutions for a class of \(2n\)-order boundary value problems. (Chinese. English summary) Zbl 1413.34103 J. Chongqing Norm. Univ., Nat. Sci. 35, No. 1, 66-69 (2018). MSC: 34B18 34B24 47N20 PDFBibTeX XMLCite \textit{W. Cheng} and \textit{J. Xu}, J. Chongqing Norm. Univ., Nat. Sci. 35, No. 1, 66--69 (2018; Zbl 1413.34103) Full Text: DOI
Xu, Jiafa; O’Regan, Donal; Zhang, Keyu Positive solutions for a system of \(p\)-Laplacian boundary value problems. (English) Zbl 1400.34039 Fixed Point Theory 19, No. 2, 823-836 (2018). MSC: 34B18 47N20 PDFBibTeX XMLCite \textit{J. Xu} et al., Fixed Point Theory 19, No. 2, 823--836 (2018; Zbl 1400.34039)
Zhang, Keyu; Xu, Jiafa; O’Regan, Donal Weak solutions for a second order impulsive boundary value problem. (English) Zbl 1499.34214 Filomat 31, No. 20, 6431-6439 (2017). MSC: 34B37 34B15 34B18 47N20 58E05 34B08 PDFBibTeX XMLCite \textit{K. Zhang} et al., Filomat 31, No. 20, 6431--6439 (2017; Zbl 1499.34214) Full Text: DOI
Xu, Jiafa; O’Regan, Donal Positive solutions for a fractional \(p\)-Laplacian boundary value problem. (English) Zbl 1488.34198 Filomat 31, No. 6, 1549-1558 (2017). MSC: 34B18 34A08 34B15 34A45 PDFBibTeX XMLCite \textit{J. Xu} and \textit{D. O'Regan}, Filomat 31, No. 6, 1549--1558 (2017; Zbl 1488.34198) Full Text: DOI
Cheng, Wei; Xu, Jiafa; Cui, Yujun Positive solutions for a system of nonlinear semipositone fractional \(q\)-difference equations with \(q\)-integral boundary conditions. (English) Zbl 1412.34080 J. Nonlinear Sci. Appl. 10, No. 8, 4430-4440 (2017). MSC: 34B10 34B18 34A34 45G15 45M20 PDFBibTeX XMLCite \textit{W. Cheng} et al., J. Nonlinear Sci. Appl. 10, No. 8, 4430--4440 (2017; Zbl 1412.34080) Full Text: DOI
Cheng, Wei; Xu, Jiafa Positive solutions for a first-order discrete fractional boundary value problem with semipositone nonlinearity. (Chinese. English summary) Zbl 1413.39007 Acta Sci. Nat. Univ. Sunyatseni 56, No. 4, 23-27 (2017). MSC: 39A13 34A08 26A33 PDFBibTeX XMLCite \textit{W. Cheng} and \textit{J. Xu}, Acta Sci. Nat. Univ. Sunyatseni 56, No. 4, 23--27 (2017; Zbl 1413.39007) Full Text: DOI
Xu, Jiafa; Wei, Zhongli Positive solutions for a class of fractional boundary value problems. (English) Zbl 1420.34029 Nonlinear Anal., Model. Control 21, No. 1, 1-17 (2016). MSC: 34A08 34B18 47N20 PDFBibTeX XMLCite \textit{J. Xu} and \textit{Z. Wei}, Nonlinear Anal., Model. Control 21, No. 1, 1--17 (2016; Zbl 1420.34029) Full Text: DOI
Xu, Jiafa; Dong, Wei Existence and uniqueness of positive solutions for a fractional boundary value problem with \(p\)-Laplacian operator. (Chinese. English summary) Zbl 1363.34027 Acta Math. Sin., Chin. Ser. 59, No. 3, 385-396 (2016). MSC: 34A08 34B18 34A45 47N20 PDFBibTeX XMLCite \textit{J. Xu} and \textit{W. Dong}, Acta Math. Sin., Chin. Ser. 59, No. 3, 385--396 (2016; Zbl 1363.34027)
Xu, Jiafa; O’Regan, Donal Positive solutions for a second order boundary value problem on time scales. (English) Zbl 1343.34215 J. Appl. Math. Comput. 51, No. 1-2, 127-144 (2016). MSC: 34N05 34B18 47H11 PDFBibTeX XMLCite \textit{J. Xu} and \textit{D. O'Regan}, J. Appl. Math. Comput. 51, No. 1--2, 127--144 (2016; Zbl 1343.34215) Full Text: DOI
Zhang, Keyu; Xu, Jiafa Nontrivial solutions for an impulsive differential equation with non-separated boundary conditions. (English) Zbl 1408.34032 Mediterr. J. Math. 12, No. 3, 717-727 (2015). MSC: 34B15 34B18 34B37 47N20 PDFBibTeX XMLCite \textit{K. Zhang} and \textit{J. Xu}, Mediterr. J. Math. 12, No. 3, 717--727 (2015; Zbl 1408.34032) Full Text: DOI
Zhang, Keyu; Xu, Jiafa; O’Regan, Donal Positive solutions for a coupled system of nonlinear fractional differential equations. (English) Zbl 1322.34015 Math. Methods Appl. Sci. 38, No. 8, 1662-1672 (2015). MSC: 34A08 34B18 47H11 PDFBibTeX XMLCite \textit{K. Zhang} et al., Math. Methods Appl. Sci. 38, No. 8, 1662--1672 (2015; Zbl 1322.34015) Full Text: DOI
Ding, Youzheng; Xu, Jiafa; Wei, Zhongli Positive solutions for a system of discrete boundary value problem. (English) Zbl 1323.39003 Bull. Malays. Math. Sci. Soc. (2) 38, No. 3, 1207-1221 (2015). Reviewer: Ondřej Došlý (Brno) MSC: 39A12 34B18 39A10 39A22 PDFBibTeX XMLCite \textit{Y. Ding} et al., Bull. Malays. Math. Sci. Soc. (2) 38, No. 3, 1207--1221 (2015; Zbl 1323.39003) Full Text: DOI
Zhang, Keyu; Xu, Jiafa Positive solutions for a second-order delay \(p\)-Laplacian boundary value problem. (English) Zbl 1312.34105 J. Nonlinear Sci. Appl. 8, No. 3, 193-200 (2015). MSC: 34K10 47H10 PDFBibTeX XMLCite \textit{K. Zhang} and \textit{J. Xu}, J. Nonlinear Sci. Appl. 8, No. 3, 193--200 (2015; Zbl 1312.34105) Full Text: DOI Link
Xu, Jiafa; Wei, Zhongli; Ding, Youzheng Existence of positive solutions for a second-order periodic boundary value problem with impulsive effects. (English) Zbl 1360.34062 Topol. Methods Nonlinear Anal. 43, No. 1, 11-21 (2014). MSC: 34B37 34B15 34B18 47H10 PDFBibTeX XMLCite \textit{J. Xu} et al., Topol. Methods Nonlinear Anal. 43, No. 1, 11--21 (2014; Zbl 1360.34062) Full Text: DOI
Zhang, Keyu; Wang, Jianguo; Xu, Jiafa Positive solutions for \(p\)-Laplacian Sturm-Liouville boundary value problems on time scales. (Chinese. English summary) Zbl 1324.34200 Acta Math. Sin., Chin. Ser. 57, No. 5, 993-1000 (2014). MSC: 34N05 34B18 34B24 47N20 PDFBibTeX XMLCite \textit{K. Zhang} et al., Acta Math. Sin., Chin. Ser. 57, No. 5, 993--1000 (2014; Zbl 1324.34200)
Ding, Youzheng; Xu, Jiafa; Wei, Zhongli Positive solutions for a high-order integral boundary value problem with impulsive effects. (Chinese. English summary) Zbl 1324.34064 Acta Math. Sin., Chin. Ser. 57, No. 3, 527-536 (2014). MSC: 34B37 34B18 47N20 PDFBibTeX XMLCite \textit{Y. Ding} et al., Acta Math. Sin., Chin. Ser. 57, No. 3, 527--536 (2014; Zbl 1324.34064)
Xu, Jiafa; O’Regan, Donal; Yang, Zhilin Positive solutions for a \(n\)th-order impulsive differential equation with integral boundary conditions. (English) Zbl 1314.34059 Differ. Equ. Dyn. Syst. 22, No. 4, 427-439 (2014). MSC: 34B37 34B10 47N20 34B18 PDFBibTeX XMLCite \textit{J. Xu} et al., Differ. Equ. Dyn. Syst. 22, No. 4, 427--439 (2014; Zbl 1314.34059) Full Text: DOI
Zhang, Keyu; Xu, Jiafa Nontrivial solutions for a fractional boundary value problem. (English) Zbl 1390.34064 Adv. Difference Equ. 2013, Paper No. 171, 9 p. (2013). MSC: 34B15 34B18 34B27 34A08 PDFBibTeX XMLCite \textit{K. Zhang} and \textit{J. Xu}, Adv. Difference Equ. 2013, Paper No. 171, 9 p. (2013; Zbl 1390.34064) Full Text: DOI
Zhang, Keyu; Xu, Jiafa Unique positive solution for a fractional boundary value problem. (English) Zbl 1312.34062 Fract. Calc. Appl. Anal. 16, No. 4, 937-948 (2013). MSC: 34B18 34A08 34B15 PDFBibTeX XMLCite \textit{K. Zhang} and \textit{J. Xu}, Fract. Calc. Appl. Anal. 16, No. 4, 937--948 (2013; Zbl 1312.34062) Full Text: DOI
Ding, Youzheng; Wei, Zhongli; Xu, Jiafa Positive solutions for a fractional boundary value problem with \(p\)-Laplacian operator. (English) Zbl 1296.34016 J. Appl. Math. Comput. 41, No. 1-2, 257-268 (2013). MSC: 34A08 34B15 34B18 34B27 PDFBibTeX XMLCite \textit{Y. Ding} et al., J. Appl. Math. Comput. 41, No. 1--2, 257--268 (2013; Zbl 1296.34016) Full Text: DOI
Zhang, Keyu; Xu, Jiafa; Dong, Wei Positive solutions for a fourth-order \(p\)-Laplacian boundary value problem with impulsive effects. (English) Zbl 1293.34045 Bound. Value Probl. 2013, Paper No. 120, 12 p. (2013). MSC: 34B37 34B18 47H07 47H11 26D15 PDFBibTeX XMLCite \textit{K. Zhang} et al., Bound. Value Probl. 2013, Paper No. 120, 12 p. (2013; Zbl 1293.34045) Full Text: DOI
Ding, Youzheng; Xu, Jiafa; Wei, Zhongli Positive solutions to a first order impulsive integral boundary value problem on time scales. (English) Zbl 1299.34292 Ann. Differ. Equations 29, No. 3, 269-276 (2013). MSC: 34N05 34B18 34B37 PDFBibTeX XMLCite \textit{Y. Ding} et al., Ann. Differ. Equations 29, No. 3, 269--276 (2013; Zbl 1299.34292)
Ding, Youzheng; Xu, Jiafa; Zhang, Xiaoyan Positive solutions for a \(2n\)th-order \(p\)-Laplacian boundary value problem involving all derivatives. (English) Zbl 1290.34033 Electron. J. Differ. Equ. 2013, Paper No. 36, 14 p. (2013). MSC: 34B18 45J05 47N20 PDFBibTeX XMLCite \textit{Y. Ding} et al., Electron. J. Differ. Equ. 2013, Paper No. 36, 14 p. (2013; Zbl 1290.34033) Full Text: EMIS
Xu, Jiafa Positive solutions for a fourth order discrete \(p\)-Laplacian boundary value problem. (English) Zbl 1285.39005 Math. Methods Appl. Sci. 36, No. 18, 2467-2475 (2013). Reviewer: Haydar Akca (Abu Dhabi) MSC: 39A12 39A22 35J92 PDFBibTeX XMLCite \textit{J. Xu}, Math. Methods Appl. Sci. 36, No. 18, 2467--2475 (2013; Zbl 1285.39005) Full Text: DOI
Xu, Jiafa; Wei, Zhongli; Ding, Youzheng Positive solutions for a \(2n\)th-order \(p\)-Laplacian boundary value problem involving all even derivatives. (English) Zbl 1267.34050 Topol. Methods Nonlinear Anal. 39, No. 1, 23-36 (2012). Reviewer: Gennaro Infante (Arcavata di Rende) MSC: 34B18 47H07 47H11 45M20 PDFBibTeX XMLCite \textit{J. Xu} et al., Topol. Methods Nonlinear Anal. 39, No. 1, 23--36 (2012; Zbl 1267.34050)
Xu, Jiafa; Wei, Zhongli; Dong, Wei Uniqueness of positive solutions for a class of fractional boundary value problems. (English) Zbl 1247.34011 Appl. Math. Lett. 25, No. 3, 590-593 (2012). MSC: 34A08 34B18 47N20 PDFBibTeX XMLCite \textit{J. Xu} et al., Appl. Math. Lett. 25, No. 3, 590--593 (2012; Zbl 1247.34011) Full Text: DOI
Xu, Jiafa; Yang, Zhilin Positive solutions for a system of nonlinear Hammerstein integral equations and applications. (English) Zbl 1238.45005 J. Integral Equations Appl. 24, No. 1, 131-147 (2012). MSC: 45G15 45M20 47H07 47H11 34A34 34B18 PDFBibTeX XMLCite \textit{J. Xu} and \textit{Z. Yang}, J. Integral Equations Appl. 24, No. 1, 131--147 (2012; Zbl 1238.45005) Full Text: DOI Euclid
Xu, Jiafa; Yang, Zhilin Positive solutions for a system of generalized Lidstone problems. (English) Zbl 1368.34037 J. Appl. Math. Comput. 37, No. 1-2, 13-35 (2011). MSC: 34B18 47H07 47H11 PDFBibTeX XMLCite \textit{J. Xu} and \textit{Z. Yang}, J. Appl. Math. Comput. 37, No. 1--2, 13--35 (2011; Zbl 1368.34037) Full Text: DOI
Xu, Jiafa; Yang, Zhilin Positive solutions for a system of \(n\)th-order nonlinear boundary value problems. (English) Zbl 1261.34029 Electron. J. Qual. Theory Differ. Equ. 2011, Paper No. 4, 16 p. (2011). MSC: 34B18 34B10 47N20 PDFBibTeX XMLCite \textit{J. Xu} and \textit{Z. Yang}, Electron. J. Qual. Theory Differ. Equ. 2011, Paper No. 4, 16 p. (2011; Zbl 1261.34029) Full Text: EMIS
Xu, Jiafa; Yang, Zhilin Positive solutions for a fourth order \(p\)-Laplacian boundary value problem. (English) Zbl 1211.34030 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 7, 2612-2623 (2011). MSC: 34B18 34A45 47N20 PDFBibTeX XMLCite \textit{J. Xu} and \textit{Z. Yang}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 7, 2612--2623 (2011; Zbl 1211.34030) Full Text: DOI
Xu, Jiafa; Yang, Zhilin Positive solutions of a boundary value problem for a system of nonlinear \(n\)th-order ordinary differential equations. (Chinese. English summary) Zbl 1240.34124 J. Syst. Sci. Math. Sci. 30, No. 5, 633-641 (2010). MSC: 34B18 47N20 PDFBibTeX XMLCite \textit{J. Xu} and \textit{Z. Yang}, J. Syst. Sci. Math. Sci. 30, No. 5, 633--641 (2010; Zbl 1240.34124)
Xu, Jiafa; Yang, Zhilin Positive solutions for singular Sturm-Liouville boundary value problems on the half line. (English) Zbl 1209.34035 Electron. J. Differ. Equ. 2010, Paper No. 171, 8 p. (2010). MSC: 34B24 34B40 34B16 34B18 PDFBibTeX XMLCite \textit{J. Xu} and \textit{Z. Yang}, Electron. J. Differ. Equ. 2010, Paper No. 171, 8 p. (2010; Zbl 1209.34035) Full Text: EuDML EMIS
Xu, Jiafa; Yang, Zhilin Three positive solutions for a system of singular generalized Lidstone problems. (English) Zbl 1188.34034 Electron. J. Differ. Equ. 2009, Paper No. 163, 9 p. (2009). MSC: 34B18 34B60 34B16 47N20 PDFBibTeX XMLCite \textit{J. Xu} and \textit{Z. Yang}, Electron. J. Differ. Equ. 2009, Paper No. 163, 9 p. (2009; Zbl 1188.34034) Full Text: EuDML EMIS