Sun, Jingxian; Xu, Xian Positive solutions of semi-positone nonlinear operator equations in Banach spaces with lattice structure. (English) Zbl 1297.47058 Positivity 17, No. 4, 995-1007 (2013). Reviewer: Adriana Buică (Cluj-Napoca) MSC: 47H07 47H10 PDFBibTeX XMLCite \textit{J. Sun} and \textit{X. Xu}, Positivity 17, No. 4, 995--1007 (2013; Zbl 1297.47058) Full Text: DOI
Cui, Yujun; Sun, Jingxian Existence of multiple positive solutions for fourth-order boundary value problems in Banach spaces. (English) Zbl 1281.34026 Bound. Value Probl. 2012, Paper No. 107, 13 p. (2012). MSC: 34B18 34B15 34G20 47N20 PDFBibTeX XMLCite \textit{Y. Cui} and \textit{J. Sun}, Bound. Value Probl. 2012, Paper No. 107, 13 p. (2012; Zbl 1281.34026) Full Text: DOI
Li, Hongyu; Sun, Jingxian; Sun, Fei Positive solutions to boundary value problems of a system of differential equations. (Chinese. English summary) Zbl 1274.34064 Chin. Ann. Math., Ser. A 33, No. 3, 329-340 (2012). MSC: 34B18 34B15 47N20 PDFBibTeX XMLCite \textit{H. Li} et al., Chin. Ann. Math., Ser. A 33, No. 3, 329--340 (2012; Zbl 1274.34064)
Yang, Zhilin; Sun, Jingxian Positive solutions of a fourth-order boundary value problem involving derivatives of all orders. (English) Zbl 1267.34051 Commun. Pure Appl. Anal. 11, No. 5, 1615-1628 (2012). MSC: 34B18 47H11 47N20 45J05 45M20 PDFBibTeX XMLCite \textit{Z. Yang} and \textit{J. Sun}, Commun. Pure Appl. Anal. 11, No. 5, 1615--1628 (2012; Zbl 1267.34051) Full Text: DOI
Xu, Xian; Sun, Jingxian; O’Regan, D. Global structure of positive solution sets of nonlinear operator equations. (English) Zbl 1246.47013 Monatsh. Math. 165, No. 2, 271-303 (2012). Reviewer: Jesús Hernández (Madrid) MSC: 47H07 47H10 58E07 47H11 47J10 47J15 35J65 PDFBibTeX XMLCite \textit{X. Xu} et al., Monatsh. Math. 165, No. 2, 271--303 (2012; Zbl 1246.47013) Full Text: DOI
Li, Hongyu; Sun, Jingxian; Cui, Yujun Positive solutions of superlinear nonlinear Sturm-Liouville boundary value problems. (Chinese. English summary) Zbl 1224.34065 Chin. Ann. Math., Ser. A 31, No. 2, 183-188 (2010). MSC: 34B18 34B24 47N20 PDFBibTeX XMLCite \textit{H. Li} et al., Chin. Ann. Math., Ser. A 31, No. 2, 183--188 (2010; Zbl 1224.34065)
Li, Hongyu; Sun, Jingxian Positive solutions for singular boundary value problems of a coupled system of second order ordinary differential equations. (Chinese. English summary) Zbl 1224.34064 Acta Anal. Funct. Appl. 12, No. 1, 21-26 (2010). MSC: 34B18 34B16 47N20 PDFBibTeX XMLCite \textit{H. Li} and \textit{J. Sun}, Acta Anal. Funct. Appl. 12, No. 1, 21--26 (2010; Zbl 1224.34064) Full Text: DOI
Cui, Yujun; Sun, Jingxian; Zou, Yumei Positive solutions of singular boundary value problems of fourth-order differential equations. (English) Zbl 1212.34054 J. Math. Res. Expo. 29, No. 2, 376-380 (2009). MSC: 34B18 34B16 47N20 PDFBibTeX XMLCite \textit{Y. Cui} et al., J. Math. Res. Expo. 29, No. 2, 376--380 (2009; Zbl 1212.34054) Full Text: DOI
Li, Hongyu; Sun, Jingxian Positive solutions of sublinear Sturm-Liouville problems with changing sign nonlinearity. (English) Zbl 1197.34040 Comput. Math. Appl. 58, No. 9, 1808-1815 (2009). MSC: 34B24 34B18 47N20 PDFBibTeX XMLCite \textit{H. Li} and \textit{J. Sun}, Comput. Math. Appl. 58, No. 9, 1808--1815 (2009; Zbl 1197.34040) Full Text: DOI
Li, Hongyu; Sun, Jingxian; Cui, Yujun Positive solutions of nonlinear differential equations on a measure chain. (Chinese. English summary) Zbl 1199.34098 Chin. Ann. Math., Ser. A 30, No. 1, 97-106 (2009). MSC: 34B18 34N05 34B15 47N20 PDFBibTeX XMLCite \textit{H. Li} et al., Chin. Ann. Math., Ser. A 30, No. 1, 97--106 (2009; Zbl 1199.34098)
Zhang, Xingqiu; Sun, Jingxian The existence of positive solution for singular boundary value problems of first order differential equation on unbounded domains. (English) Zbl 1181.34029 Acta Math. Appl. Sin., Engl. Ser. 25, No. 1, 95-104 (2009). MSC: 34B16 34B15 47N20 34B18 34B40 PDFBibTeX XMLCite \textit{X. Zhang} and \textit{J. Sun}, Acta Math. Appl. Sin., Engl. Ser. 25, No. 1, 95--104 (2009; Zbl 1181.34029) Full Text: DOI
Li, Hongyu; Sun, Jingxian; Cui, Yujun Existence of positive solutions for double Hammerstein type integral equations. (Chinese. English summary) Zbl 1174.45309 Chin. J. Eng. Math. 25, No. 5, 931-934 (2008). MSC: 45M20 45G10 PDFBibTeX XMLCite \textit{H. Li} et al., Chin. J. Eng. Math. 25, No. 5, 931--934 (2008; Zbl 1174.45309)
Sun, Jingxian; Li, Hongyu Global structure of positive solutions of singular nonlinear Sturm-Liouville problems. (Chinese. English summary) Zbl 1174.34028 Acta Math. Sci., Ser. A, Chin. Ed. 28, No. 3, 424-433 (2008). MSC: 34B24 34B15 34B18 34B16 47N20 PDFBibTeX XMLCite \textit{J. Sun} and \textit{H. Li}, Acta Math. Sci., Ser. A, Chin. Ed. 28, No. 3, 424--433 (2008; Zbl 1174.34028)
Li, Hongyu; Sun, Jingxian; Cui, Yujun Positive solutions to singular \(m\)-point boundary value problems of a coupled system of differential equations. (English) Zbl 1174.34016 Ann. Differ. Equations 24, No. 2, 163-170 (2008). MSC: 34B18 34B15 34B10 34B16 47N20 PDFBibTeX XMLCite \textit{H. Li} et al., Ann. Differ. Equations 24, No. 2, 163--170 (2008; Zbl 1174.34016)
Zhang, Guowei; Sun, Jingxian; Zhang, Tie Existence of positive solutions for a class of second-order two-point boundary value problem. (English) Zbl 1147.34018 Positivity 12, No. 3, 547-554 (2008). MSC: 34B18 34B15 PDFBibTeX XMLCite \textit{G. Zhang} et al., Positivity 12, No. 3, 547--554 (2008; Zbl 1147.34018) Full Text: DOI
Zhang, Kemei; Sun, Jingxian Four kinds of solutions for asymptotically linear operator equations and its applications. (Chinese. English summary) Zbl 1142.47351 Acta Math. Sin., Chin. Ser. 50, No. 6, 1405-1410 (2007). MSC: 47J05 47H10 47H11 47N20 PDFBibTeX XMLCite \textit{K. Zhang} and \textit{J. Sun}, Acta Math. Sin., Chin. Ser. 50, No. 6, 1405--1410 (2007; Zbl 1142.47351)
Zhang, Guowei; Sun, Jingxian A generalization of the cone expansion and compression fixed point theorem and applications. (English) Zbl 1127.47050 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 67, No. 2, 579-586 (2007). Reviewer: Yongxiang Li (Lanzhou) MSC: 47H10 34B15 34B18 47N20 PDFBibTeX XMLCite \textit{G. Zhang} and \textit{J. Sun}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 67, No. 2, 579--586 (2007; Zbl 1127.47050) Full Text: DOI
Sun, Jingxian; Zhang, Guowei Nontrivial solutions of singular sublinear Sturm–Liouville problems. (English) Zbl 1111.34023 J. Math. Anal. Appl. 326, No. 1, 242-251 (2007). MSC: 34B24 34B16 34B18 PDFBibTeX XMLCite \textit{J. Sun} and \textit{G. Zhang}, J. Math. Anal. Appl. 326, No. 1, 242--251 (2007; Zbl 1111.34023) Full Text: DOI
Sun, Jingxian; Zhang, Guowei Nontrivial solutions of singular superlinear Sturm–Liouville problems. (English) Zbl 1100.34019 J. Math. Anal. Appl. 313, No. 2, 518-536 (2006). Reviewer: Pavel Rehak (Brno) MSC: 34B18 34B16 PDFBibTeX XMLCite \textit{J. Sun} and \textit{G. Zhang}, J. Math. Anal. Appl. 313, No. 2, 518--536 (2006; Zbl 1100.34019) Full Text: DOI
Li, Hongyu; Sun, Jingxian Positive solutions of boundary value problem for a system of nonlinear ordinary differential equations. (English) Zbl 1094.34512 Ann. Differ. Equations 21, No. 2, 153-160 (2005). Reviewer: Idris Addou (Montréal) MSC: 34B18 34B15 PDFBibTeX XMLCite \textit{H. Li} and \textit{J. Sun}, Ann. Differ. Equations 21, No. 2, 153--160 (2005; Zbl 1094.34512)
Sun, Jingxian; Liu, Yansheng Multiple positive solutions of singular third-order periodic boundary value problem. (English) Zbl 1068.34020 Acta Math. Sci., Ser. B, Engl. Ed. 25, No. 1, 81-88 (2005). MSC: 34B16 34B15 34B18 PDFBibTeX XMLCite \textit{J. Sun} and \textit{Y. Liu}, Acta Math. Sci., Ser. B, Engl. Ed. 25, No. 1, 81--88 (2005; Zbl 1068.34020) Full Text: DOI
Zhang, Guowei; Sun, Jingxian A necessary and sufficient condition for the existence of positive solutions of a class of singular boundary value problems for higher-order differential equations. (Chinese. English summary) Zbl 1068.34021 Acta Anal. Funct. Appl. 6, No. 3, 250-255 (2004). MSC: 34B16 34B18 34B15 PDFBibTeX XMLCite \textit{G. Zhang} and \textit{J. Sun}, Acta Anal. Funct. Appl. 6, No. 3, 250--255 (2004; Zbl 1068.34021)
Zhang, Kemei; Sun, Jingxian The relation between sign-changing solution and positive-negative solutions for nonlinear operator equations and its applications. (English) Zbl 1075.47035 Acta Math. Sci., Ser. B, Engl. Ed. 24, No. 3, 463-468 (2004). Reviewer: Gerhard-Wilhelm Weber (Ankara) MSC: 47J05 47H10 47N20 34B24 47H07 47H11 PDFBibTeX XMLCite \textit{K. Zhang} and \textit{J. Sun}, Acta Math. Sci., Ser. B, Engl. Ed. 24, No. 3, 463--468 (2004; Zbl 1075.47035) Full Text: DOI
Zhang, Guowei; Sun, Jingxian Existence of positive solutions for singular second-order \(m\)-point boundary value problems. (English) Zbl 1080.34517 Acta Math. Appl. Sin., Engl. Ser. 20, No. 4, 655-664 (2004). Reviewer: Svatoslav Staněk (Olomouc) MSC: 34B16 34B18 34B10 PDFBibTeX XMLCite \textit{G. Zhang} and \textit{J. Sun}, Acta Math. Appl. Sin., Engl. Ser. 20, No. 4, 655--664 (2004; Zbl 1080.34517) Full Text: DOI
Sun, Jingxian; Zhang, Kemei On the number of fixed points of nonlinear operators and applications. (English) Zbl 1131.47308 J. Syst. Sci. Complex. 16, No. 2, 229-235 (2003). MSC: 47H10 47H30 47J05 47N20 PDFBibTeX XMLCite \textit{J. Sun} and \textit{K. Zhang}, J. Syst. Sci. Complex. 16, No. 2, 229--235 (2003; Zbl 1131.47308)
Sun, Jingxian; Xu, Xi’an Decreasing flow invariant sets and fixed points of quasimonotone increasing operators. (English) Zbl 0977.47050 Proc. Am. Math. Soc. 129, No. 9, 2663-2669 (2001). Reviewer: Peter Zabreiko (Minsk) MSC: 47H10 47H50 47H07 PDFBibTeX XMLCite \textit{J. Sun} and \textit{X. Xu}, Proc. Am. Math. Soc. 129, No. 9, 2663--2669 (2001; Zbl 0977.47050) Full Text: DOI
Sun, Jingxian; Liu, Lishan Existence and uniqueness of solution for a class of nonincreasing operator equations. (Chinese. English summary) Zbl 0772.47030 J. Qufu Norm. Univ., Nat. Sci. 18, No. 2, 9-13 (1992). MSC: 47H07 47J05 PDFBibTeX XMLCite \textit{J. Sun} and \textit{L. Liu}, J. Qufu Norm. Univ., Nat. Sci. 18, No. 2, 9--13 (1992; Zbl 0772.47030)