Lu, Huiqin; Zhang, Xingqiu Positive solution for a class of nonlocal elliptic equations. (English) Zbl 1411.35118 Appl. Math. Lett. 88, 125-131 (2019). MSC: 35J60 35B09 PDFBibTeX XMLCite \textit{H. Lu} and \textit{X. Zhang}, Appl. Math. Lett. 88, 125--131 (2019; Zbl 1411.35118) Full Text: DOI
Zhang, Xingqiu; Shao, Zhuyan; Zhong, Qiuyan; Zhao, Zengqin Triple positive solutions for semipositone fractional differential equations \(m\)-point boundary value problems with singularities and \(p\)-\(q\)-order derivatives. (English) Zbl 1420.34031 Nonlinear Anal., Model. Control 23, No. 6, 889-903 (2018). MSC: 34A08 34B10 34B18 47N20 PDFBibTeX XMLCite \textit{X. Zhang} et al., Nonlinear Anal., Model. Control 23, No. 6, 889--903 (2018; Zbl 1420.34031) Full Text: DOI
Zhong, Qiuyan; Zhang, Xingqiu; Lu, Xinyi; Fu, Zhengqing Uniqueness of successive positive solution for nonlocal singular higher-order fractional differential equations involving arbitrary derivatives. (English) Zbl 1401.34018 J. Funct. Spaces 2018, Article ID 6207682, 8 p. (2018). MSC: 34A08 34B10 34B18 34A45 47N20 PDFBibTeX XMLCite \textit{Q. Zhong} et al., J. Funct. Spaces 2018, Article ID 6207682, 8 p. (2018; Zbl 1401.34018) Full Text: DOI
Zhang, Xingqiu; Zhong, Qiuyan Triple positive solutions for nonlocal fractional differential equations with singularities both on time and space variables. (English) Zbl 1391.34021 Appl. Math. Lett. 80, 12-19 (2018). MSC: 34A08 34B10 34B18 34B16 47N20 PDFBibTeX XMLCite \textit{X. Zhang} and \textit{Q. Zhong}, Appl. Math. Lett. 80, 12--19 (2018; Zbl 1391.34021) Full Text: DOI
Zhong, Qiuyan; Zhang, Xingqiu; Shao, Zhuyan Positive solutions for singular higher-order semipositone fractional differential equations with conjugate type integral conditions. (English) Zbl 1415.34034 J. Nonlinear Sci. Appl. 10, No. 9, 4983-5001 (2017). MSC: 34A08 34B15 34B16 34B18 PDFBibTeX XMLCite \textit{Q. Zhong} et al., J. Nonlinear Sci. Appl. 10, No. 9, 4983--5001 (2017; Zbl 1415.34034) Full Text: DOI
Zhang, Xingqiu; Shao, Zhuyan; Zhong, Qiuyan Positive solutions for semipositone \((k,n-k)\) conjugate boundary value problems with singularities on space variables. (English) Zbl 1378.34042 Appl. Math. Lett. 72, 50-57 (2017). MSC: 34B18 34B15 34B16 PDFBibTeX XMLCite \textit{X. Zhang} et al., Appl. Math. Lett. 72, 50--57 (2017; Zbl 1378.34042) Full Text: DOI
Zhong, Qiuyan; Zhang, Xingqiu Positive solution for higher-order singular infinite-point fractional differential equation with \(p\)-Laplacian. (English) Zbl 1419.34052 Adv. Difference Equ. 2016, Paper No. 11, 11 p. (2016). MSC: 34A08 26A33 34B15 34B16 PDFBibTeX XMLCite \textit{Q. Zhong} and \textit{X. Zhang}, Adv. Difference Equ. 2016, Paper No. 11, 11 p. (2016; Zbl 1419.34052) Full Text: DOI
Zhang, Xingqiu Positive solutions for singular higher-order fractional differential equations with nonlocal conditions. (English) Zbl 1329.34014 J. Appl. Math. Comput. 49, No. 1-2, 69-89 (2015). MSC: 34A08 34B15 34B16 34B18 34B10 47N20 PDFBibTeX XMLCite \textit{X. Zhang}, J. Appl. Math. Comput. 49, No. 1--2, 69--89 (2015; Zbl 1329.34014) Full Text: DOI
Zhang, Xingqiu; Wang, Lin; Sun, Qian Existence of positive solutions for a class of nonlinear fractional differential equations with integral boundary conditions and a parameter. (English) Zbl 1354.34049 Appl. Math. Comput. 226, 708-718 (2014). MSC: 34B18 34A08 34B08 PDFBibTeX XMLCite \textit{X. Zhang} et al., Appl. Math. Comput. 226, 708--718 (2014; Zbl 1354.34049) Full Text: DOI
Guo, Limin; Zhang, Xingqiu Existence of positive multiple solutions to fractional differential equations with \(p\)-Laplacian operator. (English) Zbl 1324.34008 Ann. Differ. Equations 30, No. 4, 398-406 (2014). MSC: 34A08 34B18 47N20 PDFBibTeX XMLCite \textit{L. Guo} and \textit{X. Zhang}, Ann. Differ. Equations 30, No. 4, 398--406 (2014; Zbl 1324.34008)
Lu, Xinyi; Zhang, Xingqiu; Wang, Lin Existence of positive solutions for a class of fractional differential equations with \(m\)-point boundary value conditions. (Chinese. English summary) Zbl 1313.34081 J. Syst. Sci. Math. Sci. 34, No. 2, 218-230 (2014). MSC: 34B18 34B10 34A08 34B27 47N20 PDFBibTeX XMLCite \textit{X. Lu} et al., J. Syst. Sci. Math. Sci. 34, No. 2, 218--230 (2014; Zbl 1313.34081)
Wang, Lin; Zhang, Xingqiu Existence of positive solutions for a class of higher-order nonlinear fractional differential equations with integral boundary conditions and a parameter. (English) Zbl 1296.34039 J. Appl. Math. Comput. 44, No. 1-2, 293-316 (2014). MSC: 34A08 34B15 34B16 PDFBibTeX XMLCite \textit{L. Wang} and \textit{X. Zhang}, J. Appl. Math. Comput. 44, No. 1--2, 293--316 (2014; Zbl 1296.34039) Full Text: DOI
Guo, Limin; Zhang, Xingqiu Existence of positive solutions for the singular fractional differential equations. (English) Zbl 1300.34017 J. Appl. Math. Comput. 44, No. 1-2, 215-228 (2014). MSC: 34A08 34B15 34B16 34B27 47N20 PDFBibTeX XMLCite \textit{L. Guo} and \textit{X. Zhang}, J. Appl. Math. Comput. 44, No. 1--2, 215--228 (2014; Zbl 1300.34017) Full Text: DOI
Wang, Lin; Zhang, Xingqiu Positive solutions of \(m\)-point boundary value problems for a class of nonlinear fractional differential equations. (English) Zbl 1296.34038 J. Appl. Math. Comput. 42, No. 1-2, 387-399 (2013). MSC: 34A08 34B15 34B16 PDFBibTeX XMLCite \textit{L. Wang} and \textit{X. Zhang}, J. Appl. Math. Comput. 42, No. 1--2, 387--399 (2013; Zbl 1296.34038) Full Text: DOI
Zhang, Xingqiu Computation of positive solutions for nonlinear impulsive integral boundary value problems with \(p\)-Laplacian on infinite intervals. (English) Zbl 1266.65135 Abstr. Appl. Anal. 2013, Article ID 708281, 13 p. (2013). MSC: 65L10 34B15 34A37 PDFBibTeX XMLCite \textit{X. Zhang}, Abstr. Appl. Anal. 2013, Article ID 708281, 13 p. (2013; Zbl 1266.65135) Full Text: DOI
Zhang, Xingqiu Positive solution for a class of singular semipositone fractional differential equations with integral boundary conditions. (English) Zbl 1278.26016 Bound. Value Probl. 2012, Paper No. 123, 17 p. (2012). MSC: 26A33 34B15 34B16 34G20 PDFBibTeX XMLCite \textit{X. Zhang}, Bound. Value Probl. 2012, Paper No. 123, 17 p. (2012; Zbl 1278.26016) Full Text: DOI
Zhang, Xingqiu Positive solutions for a second-order nonlinear impulsive singular integro-differential equation with integral conditions in Banach spaces. (English) Zbl 1274.34190 J. Math. Res. Appl. 32, No. 5, 599-614 (2012). MSC: 34K10 34B18 34B16 34B37 34K30 PDFBibTeX XMLCite \textit{X. Zhang}, J. Math. Res. Appl. 32, No. 5, 599--614 (2012; Zbl 1274.34190) Full Text: DOI
Chen, Xu; Zhang, Xingqiu Existence of positive solutions for nonlinear systems of second-order differential equations with integral boundary conditions on an infinite interval in Banach spaces. (English) Zbl 1231.34039 Electron. J. Differ. Equ. 2011, Paper No. 154, 9 p. (2011). MSC: 34B18 34B15 34B16 34B40 47N20 34G20 34B10 PDFBibTeX XMLCite \textit{X. Chen} and \textit{X. Zhang}, Electron. J. Differ. Equ. 2011, Paper No. 154, 9 p. (2011; Zbl 1231.34039) Full Text: EMIS
Zhang, Xingqiu Existence and uniqueness of positive solutions for a second order singular differential equation with integral boundary conditions. (Chinese. English summary) Zbl 1240.34138 J. Syst. Sci. Math. Sci. 30, No. 10, 1407-1416 (2010). MSC: 34B18 34B16 34B10 PDFBibTeX XMLCite \textit{X. Zhang}, J. Syst. Sci. Math. Sci. 30, No. 10, 1407--1416 (2010; Zbl 1240.34138)
Zhang, Xingqiu; Wang, Xinhua Successive iteration of positive solutions for some Sturm-Liouville-like impulsive boundary-value problems with \(p\)-Laplacian on half line. (Chinese. English summary) Zbl 1240.34158 Acta Math. Appl. Sin. 33, No. 5, 780-791 (2010). MSC: 34B37 34B18 34B24 34B40 34A45 PDFBibTeX XMLCite \textit{X. Zhang} and \textit{X. Wang}, Acta Math. Appl. Sin. 33, No. 5, 780--791 (2010; Zbl 1240.34158)
Wang, Xinhua; Zhang, Xingqiu Existence of positive solutions for fourth order singular differential equations with Sturm-Liouville boundary conditions. (Chinese. English summary) Zbl 1240.34121 J. Shandong Univ., Nat. Sci. 45, No. 8, 76-80 (2010). MSC: 34B18 34B24 34B16 PDFBibTeX XMLCite \textit{X. Wang} and \textit{X. Zhang}, J. Shandong Univ., Nat. Sci. 45, No. 8, 76--80 (2010; Zbl 1240.34121)
Zhang, Xingqiu Existence of positive solution for superlinear semipositone singular second-order \(m\)-point boundary value problem. (English) Zbl 1240.34097 Chin. Q. J. Math. 25, No. 1, 151-158 (2010). MSC: 34B16 34B10 34B18 PDFBibTeX XMLCite \textit{X. Zhang}, Chin. Q. J. Math. 25, No. 1, 151--158 (2010; Zbl 1240.34097)
Zhang, Xingqiu Positive solutions for singular fourth-order integral boundary-value problem with \(p\)-Laplacian operator. (English) Zbl 1240.34137 J. Math. Res. Expo. 30, No. 3, 495-506 (2010). MSC: 34B18 34B16 34B10 47N20 PDFBibTeX XMLCite \textit{X. Zhang}, J. Math. Res. Expo. 30, No. 3, 495--506 (2010; Zbl 1240.34137) Full Text: DOI
Zhang, Xingqiu Existence and successive iteration of positive solutions for some impulsive multi-point boundary value problems with \(p\)-Laplacian on an infinite interval. (Chinese. English summary) Zbl 1240.34157 J. Syst. Sci. Math. Sci. 30, No. 5, 619-632 (2010). MSC: 34B37 34B10 34B18 34B40 34A45 PDFBibTeX XMLCite \textit{X. Zhang}, J. Syst. Sci. Math. Sci. 30, No. 5, 619--632 (2010; Zbl 1240.34157)
Zhang, Xingqiu Existence of positive solution for nonlinear fourth-order singular differential equations with integral boundary conditions in a Banach space. (Chinese. English summary) Zbl 1224.34089 Acta Math. Sci., Ser. A, Chin. Ed. 30, No. 2, 566-575 (2010). MSC: 34B18 34B15 34B16 34B10 34G20 47N20 34L15 PDFBibTeX XMLCite \textit{X. Zhang}, Acta Math. Sci., Ser. A, Chin. Ed. 30, No. 2, 566--575 (2010; Zbl 1224.34089)
Zhang, Xingqiu Existence and uniqueness of positive solution for fourth-order singular integral boundary-value problems. (Chinese. English summary) Zbl 1224.34087 Acta Math. Appl. Sin. 33, No. 1, 38-50 (2010). MSC: 34B18 34B16 34B10 PDFBibTeX XMLCite \textit{X. Zhang}, Acta Math. Appl. Sin. 33, No. 1, 38--50 (2010; Zbl 1224.34087)
Zhang, Xingqiu Existence and incomparability of positive solutions for singular boundary value problems of first order differential equation on unbounded domains. (English) Zbl 1212.34080 J. Math. Res. Expo. 29, No. 3, 491-499 (2009). MSC: 34B18 34B16 34B40 PDFBibTeX XMLCite \textit{X. Zhang}, J. Math. Res. Expo. 29, No. 3, 491--499 (2009; Zbl 1212.34080) Full Text: DOI
Lou, Guojiu; Zhang, Xingqiu; Wang, Jianguo Existence of positive solutions for first order nonlinear impulsive singular differential equations of mixed type in Banach spaces. (English) Zbl 1212.45018 J. Shandong Univ., Nat. Sci. 44, No. 8, 74-79 (2009). MSC: 45N05 45J05 45M20 45G05 PDFBibTeX XMLCite \textit{G. Lou} et al., J. Shandong Univ., Nat. Sci. 44, No. 8, 74--79 (2009; Zbl 1212.45018)
Zhang, Xingqiu Existence of positive solutions for boundary value problems of second-order nonlinear differential equations on the half line. (English) Zbl 1186.34039 Electron. J. Differ. Equ. 2009, Paper No. 141, 10 p. (2009). MSC: 34B40 34A45 34B15 34B18 PDFBibTeX XMLCite \textit{X. Zhang}, Electron. J. Differ. Equ. 2009, Paper No. 141, 10 p. (2009; Zbl 1186.34039) Full Text: EuDML Link
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
Zhang, Xingqiu Existence of positive solution to superlinear semipositone singular \(m\)-point boundary value problems. (English) Zbl 1199.34127 Ann. Differ. Equations 24, No. 4, 490-497 (2008). MSC: 34B18 34B10 34B15 34B16 47N20 PDFBibTeX XMLCite \textit{X. Zhang}, Ann. Differ. Equations 24, No. 4, 490--497 (2008; Zbl 1199.34127)
Zhang, Xingqiu Positive solutions for singular first order impulsive integro-differential equation of mixed type in a Banach space. (Chinese. English summary) Zbl 1199.45035 Math. Pract. Theory 38, No. 12, 163-171 (2008). MSC: 45N05 45J05 45G10 PDFBibTeX XMLCite \textit{X. Zhang}, Math. Pract. Theory 38, No. 12, 163--171 (2008; Zbl 1199.45035)
Zhang, Xingqiu; Zhong, Qiuyan Positive solutions for singular \(m\)-point boundary value problems in a Banach space. (Chinese. English summary) Zbl 1174.34325 J. Shandong Univ., Nat. Sci. 43, No. 9, 51-56, 62 (2008). MSC: 34B10 34B18 34G20 47N20 PDFBibTeX XMLCite \textit{X. Zhang} and \textit{Q. Zhong}, J. Shandong Univ., Nat. Sci. 43, No. 9, 51--56, 62 (2008; Zbl 1174.34325)
Zhang, Xingqiu Positive solutions of nonlinear singular boundary value problems with integral boundary conditions in Banach spaces. (English) Zbl 1153.34321 Far East J. Appl. Math. 32, No. 3, 415-433 (2008). MSC: 34B15 34B16 PDFBibTeX XMLCite \textit{X. Zhang}, Far East J. Appl. Math. 32, No. 3, 415--433 (2008; Zbl 1153.34321) Full Text: Link
Zhang, Xingqiu Existence of positive solutions for multi-point boundary value problems on infinite intervals in Banach spaces. (English) Zbl 1172.34020 Appl. Math. Comput. 206, No. 2, 932-941 (2008). Reviewer: Jin Liang (Shanghai) MSC: 34B18 34G20 34B16 47N20 PDFBibTeX XMLCite \textit{X. Zhang}, Appl. Math. Comput. 206, No. 2, 932--941 (2008; Zbl 1172.34020) Full Text: DOI
Zhang, Xingqiu Multiple solutions for nonlinear singular \(m\)-point boundary value problem in abstract space. (English) Zbl 1140.34401 Ann. Differ. Equations 23, No. 2, 243-252 (2007). MSC: 34G20 45N05 34B15 34B16 34B18 34B10 PDFBibTeX XMLCite \textit{X. Zhang}, Ann. Differ. Equations 23, No. 2, 243--252 (2007; Zbl 1140.34401)