Li, Yuanyuan Multiple positive solutions for quasilinear elliptic problems with combined critical Sobolev-Hardy terms. (English) Zbl 1513.35180 Bound. Value Probl. 2019, Paper No. 136, 19 p. (2019). MSC: 35J20 35D30 PDFBibTeX XMLCite \textit{Y. Li}, Bound. Value Probl. 2019, Paper No. 136, 19 p. (2019; Zbl 1513.35180) Full Text: DOI
Guo, Limin; Liu, Lishan Unique iterative positive solutions for a singular \(p\)-Laplacian fractional differential equation system with infinite-point boundary conditions. (English) Zbl 1513.34110 Bound. Value Probl. 2019, Paper No. 113, 22 p. (2019). MSC: 34B18 34B08 34B16 34B10 34A45 34A08 34B27 PDFBibTeX XMLCite \textit{L. Guo} and \textit{L. Liu}, Bound. Value Probl. 2019, Paper No. 113, 22 p. (2019; Zbl 1513.34110) Full Text: DOI
Alesemi, Meshari Solvability for a class of nonlinear Hadamard fractional differential equations with parameters. (English) Zbl 1513.34016 Bound. Value Probl. 2019, Paper No. 101, 23 p. (2019). MSC: 34A08 34B15 34B18 34B27 47N20 PDFBibTeX XMLCite \textit{M. Alesemi}, Bound. Value Probl. 2019, Paper No. 101, 23 p. (2019; Zbl 1513.34016) Full Text: DOI
Wang, Wenxia Properties of Green’s function and the existence of different types of solutions for nonlinear fractional BVP with a parameter in integral boundary conditions. (English) Zbl 1513.34096 Bound. Value Probl. 2019, Paper No. 76, 20 p. (2019). MSC: 34B10 34B18 34B15 34B08 34A08 47N20 34B27 PDFBibTeX XMLCite \textit{W. Wang}, Bound. Value Probl. 2019, Paper No. 76, 20 p. (2019; Zbl 1513.34096) Full Text: DOI
Bachar, Imed; Mâagli, Habib; Mesloub, Said Positive solutions of semilinear problems in an exterior domain of \(\mathbb{R}^2\). (English) Zbl 1524.35266 Bound. Value Probl. 2019, Paper No. 65, 24 p. (2019). MSC: 35J91 35B44 35J08 35J25 35B40 PDFBibTeX XMLCite \textit{I. Bachar} et al., Bound. Value Probl. 2019, Paper No. 65, 24 p. (2019; Zbl 1524.35266) Full Text: DOI
Ma, Yuexiao; Yin, Chenyang; Zhang, Guowei Positive solutions of fourth-order problems with dependence on all derivatives in nonlinearity under Stieltjes integral boundary conditions. (English) Zbl 1513.34113 Bound. Value Probl. 2019, Paper No. 41, 22 p. (2019). MSC: 34B18 34B10 34B15 47N20 PDFBibTeX XMLCite \textit{Y. Ma} et al., Bound. Value Probl. 2019, Paper No. 41, 22 p. (2019; Zbl 1513.34113) Full Text: DOI
Di, Ke; Yan, Baoqiang The existence of positive solution for singular Kirchhoff equation with two parameters. (English) Zbl 1524.35236 Bound. Value Probl. 2019, Paper No. 40, 13 p. (2019). MSC: 35J60 35B09 35A01 35A02 35J25 PDFBibTeX XMLCite \textit{K. Di} and \textit{B. Yan}, Bound. Value Probl. 2019, Paper No. 40, 13 p. (2019; Zbl 1524.35236) Full Text: DOI
Wang, Peng; Ru, Yuanfang Some existence results of positive solutions for \(p\)-Laplacian systems. (English) Zbl 1524.34074 Bound. Value Probl. 2019, Paper No. 9, 24 p. (2019). MSC: 34B18 35J92 35J57 PDFBibTeX XMLCite \textit{P. Wang} and \textit{Y. Ru}, Bound. Value Probl. 2019, Paper No. 9, 24 p. (2019; Zbl 1524.34074) Full Text: DOI
Bouteraa, N.; Benaĭcha, S. Positive periodic solutions for a class of fourth-order nonlinear differential equations. (Russian. English summary) Zbl 1507.34024 Sib. Zh. Vychisl. Mat. 22, No. 1, 1-14 (2019). MSC: 34B15 34A45 34B18 34C25 PDFBibTeX XMLCite \textit{N. Bouteraa} and \textit{S. Benaĭcha}, Sib. Zh. Vychisl. Mat. 22, No. 1, 1--14 (2019; Zbl 1507.34024) Full Text: DOI MNR
Borodina, E. A.; Golovaneva, Faina Valentinovna; Shabrov, Sergey Alexandrovich About one boundary value problem of the sixth order with a strong nonlinearity. (Russian. English summary) Zbl 1504.34042 Vestn. Voronezh. Gos. Univ., Ser. Fiz. Mat. 2019, No. 2, 65-69 (2019). MSC: 34B15 34B18 34B27 PDFBibTeX XMLCite \textit{E. A. Borodina} et al., Vestn. Voronezh. Gos. Univ., Ser. Fiz. Mat. 2019, No. 2, 65--69 (2019; Zbl 1504.34042) Full Text: Link
Li, Qian; Xiao, Yanni Analysis of a mathematical model with nonlinear susceptibles-guided interventions. (English) Zbl 1497.92276 Math. Biosci. Eng. 16, No. 5, 5551-5583 (2019). MSC: 92D30 34A37 93B52 34C25 34C23 PDFBibTeX XMLCite \textit{Q. Li} and \textit{Y. Xiao}, Math. Biosci. Eng. 16, No. 5, 5551--5583 (2019; Zbl 1497.92276) Full Text: DOI
Cheng, Zhibo; Lia, Feifan; Yao, Shaowen Positive periodic solutions for second-order neutral differential equations with time-dependent deviating arguments. (English) Zbl 1499.34355 Filomat 33, No. 12, 3627-3638 (2019). MSC: 34K13 34K40 47N20 PDFBibTeX XMLCite \textit{Z. Cheng} et al., Filomat 33, No. 12, 3627--3638 (2019; Zbl 1499.34355) Full Text: DOI
Luo, Demou The study of global stability of a diffusive Michaelis-Menten and Tanner predator-prey model. (English) Zbl 1499.35348 Filomat 33, No. 17, 5651-5659 (2019). MSC: 35K57 34C37 92D25 PDFBibTeX XMLCite \textit{D. Luo}, Filomat 33, No. 17, 5651--5659 (2019; Zbl 1499.35348) Full Text: DOI
Wu, Guoxing; Xing, Ting; Zhou, Duanmei Inequalities for the eigenvalues of the positive definite solutions of the nonlinear matrix equation. (English) Zbl 1499.15056 Filomat 33, No. 9, 2667-2671 (2019). MSC: 15A24 15A42 PDFBibTeX XMLCite \textit{G. Wu} et al., Filomat 33, No. 9, 2667--2671 (2019; Zbl 1499.15056) Full Text: DOI
Liu, Songnan; Xu, Xiaojie Periodic solution of the DS-I-A epidemic model with stochastic perturbations. (English) Zbl 1513.92078 Filomat 33, No. 8, 2219-2235 (2019). MSC: 92D30 34C25 34F05 PDFBibTeX XMLCite \textit{S. Liu} and \textit{X. Xu}, Filomat 33, No. 8, 2219--2235 (2019; Zbl 1513.92078) Full Text: DOI
Liu, Changdong; Zhou, Xiaoliang Existence and global attractivity of positive periodic solutions for a delayed predator-prey model with mutual interference and functional response. (English) Zbl 1499.34428 Filomat 33, No. 1, 43-64 (2019). MSC: 34K60 34K13 34K25 92D25 PDFBibTeX XMLCite \textit{C. Liu} and \textit{X. Zhou}, Filomat 33, No. 1, 43--64 (2019; Zbl 1499.34428) Full Text: DOI
Wang, Shenglin; Chai, Jialong; Zhang, Guowei Positive solutions of beam equations under nonlocal boundary value conditions. (English) Zbl 1487.34082 Adv. Difference Equ. 2019, Paper No. 470, 13 p. (2019). MSC: 34B18 34B15 34B10 74K10 47N20 PDFBibTeX XMLCite \textit{S. Wang} et al., Adv. Difference Equ. 2019, Paper No. 470, 13 p. (2019; Zbl 1487.34082) Full Text: DOI
Asaduzzaman, Md.; Ali, Md. Zulfikar Existence of positive solution to the boundary value problems for coupled system of nonlinear fractional differential equations. (English) Zbl 1484.47100 AIMS Math. 4, No. 3, 880-895 (2019). MSC: 47H10 34A08 34B18 PDFBibTeX XMLCite \textit{Md. Asaduzzaman} and \textit{Md. Z. Ali}, AIMS Math. 4, No. 3, 880--895 (2019; Zbl 1484.47100) Full Text: DOI
Wang, Yongqing Positive solutions for a class of two-term fractional differential equations with multipoint boundary value conditions. (English) Zbl 1485.34057 Adv. Difference Equ. 2019, Paper No. 304, 13 p. (2019). MSC: 34A08 34B18 47N20 34B15 34B10 PDFBibTeX XMLCite \textit{Y. Wang}, Adv. Difference Equ. 2019, Paper No. 304, 13 p. (2019; Zbl 1485.34057) Full Text: DOI
Tian, Yuansheng; Bai, Zhanbing; Sun, Sujing Positive solutions for a boundary value problem of fractional differential equation with \(p\)-Laplacian operator. (English) Zbl 1485.34053 Adv. Difference Equ. 2019, Paper No. 349, 14 p. (2019). MSC: 34A08 34B18 PDFBibTeX XMLCite \textit{Y. Tian} et al., Adv. Difference Equ. 2019, Paper No. 349, 14 p. (2019; Zbl 1485.34053) Full Text: DOI
Chen, Yongpeng; Guo, Yuxia; Tang, Zhongwei Concentration of ground state solutions for quasilinear Schrödinger systems with critical exponents. (English) Zbl 1483.35202 Commun. Pure Appl. Anal. 18, No. 5, 2693-2715 (2019). MSC: 35Q55 35J65 35B33 35B09 35A01 PDFBibTeX XMLCite \textit{Y. Chen} et al., Commun. Pure Appl. Anal. 18, No. 5, 2693--2715 (2019; Zbl 1483.35202) Full Text: DOI
Xin, Yun; Yao, Shaowen; Wang, Ruichen Strong singularities of attractive and repulsive type to \(2n\)-order neutral differential equation. (English) Zbl 1499.34168 J. Inequal. Appl. 2019, Paper No. 259, 16 p. (2019). MSC: 34B16 34B18 PDFBibTeX XMLCite \textit{Y. Xin} et al., J. Inequal. Appl. 2019, Paper No. 259, 16 p. (2019; Zbl 1499.34168) Full Text: DOI
Li, Shunyong; Zhai, Chengbo Positive solutions for a new class of Hadamard fractional differential equations on infinite intervals. (English) Zbl 1499.34067 J. Inequal. Appl. 2019, Paper No. 150, 9 p. (2019). MSC: 34A08 47N20 26A33 PDFBibTeX XMLCite \textit{S. Li} and \textit{C. Zhai}, J. Inequal. Appl. 2019, Paper No. 150, 9 p. (2019; Zbl 1499.34067) Full Text: DOI
Li, Yongxiang; Gao, Yabing The method of lower and upper solutions for the cantilever beam equations with fully nonlinear terms. (English) Zbl 1499.34156 J. Inequal. Appl. 2019, Paper No. 136, 16 p. (2019). MSC: 34B15 34B18 47N20 PDFBibTeX XMLCite \textit{Y. Li} and \textit{Y. Gao}, J. Inequal. Appl. 2019, Paper No. 136, 16 p. (2019; Zbl 1499.34156) Full Text: DOI
Yao, Shaowen; Zhang, Xiaozhong Positive periodic solution for \(p\)-Laplacian neutral damped Duffing equation with strong singularities of attractive and repulsive type. (English) Zbl 1499.34416 J. Inequal. Appl. 2019, Paper No. 102, 13 p. (2019). MSC: 34K40 34K13 PDFBibTeX XMLCite \textit{S. Yao} and \textit{X. Zhang}, J. Inequal. Appl. 2019, Paper No. 102, 13 p. (2019; Zbl 1499.34416) Full Text: DOI
Wei, Yongfang; Bai, Zhanbing; Sun, Sujing On positive solutions for some second-order three-point boundary value problems with convection term. (English) Zbl 1499.34163 J. Inequal. Appl. 2019, Paper No. 72, 11 p. (2019). MSC: 34B15 34B10 34B18 47N20 PDFBibTeX XMLCite \textit{Y. Wei} et al., J. Inequal. Appl. 2019, Paper No. 72, 11 p. (2019; Zbl 1499.34163) Full Text: DOI
Sang, Yanbin; Guo, Siman An exact estimate result for \(p\)-biharmonic equations with Hardy potential and negative exponents. (English) Zbl 1499.31017 J. Inequal. Appl. 2019, Paper No. 26, 26 p. (2019). MSC: 31B30 31A30 PDFBibTeX XMLCite \textit{Y. Sang} and \textit{S. Guo}, J. Inequal. Appl. 2019, Paper No. 26, 26 p. (2019; Zbl 1499.31017) Full Text: DOI
Huang, Shao-Yuan Global bifurcation and exact multiplicity of positive solutions for the one-dimensional Minkowski-curvature problem with sign-changing nonlinearity. (English) Zbl 1493.34056 Commun. Pure Appl. Anal. 18, No. 6, 3267-3284 (2019). Reviewer: Hanying Feng (Shijiazhuang) MSC: 34B09 34C23 34B15 34B18 PDFBibTeX XMLCite \textit{S.-Y. Huang}, Commun. Pure Appl. Anal. 18, No. 6, 3267--3284 (2019; Zbl 1493.34056) Full Text: DOI
Deren, Fulya Yoruk The multiplicity of positive solutions for systems of fractional boundary value problems. (English) Zbl 1488.34173 Hacet. J. Math. Stat. 48, No. 6, 1626-1634 (2019). MSC: 34B18 34A08 47N20 PDFBibTeX XMLCite \textit{F. Y. Deren}, Hacet. J. Math. Stat. 48, No. 6, 1626--1634 (2019; Zbl 1488.34173) Full Text: Link
Wu, Pin-Xia; Zhang, Yu-Feng Lump, lumpoff and predictable rogue wave solutions to the (2+1)-dimensional asymmetrical Nizhnik-Novikov-Veselov equation. (English) Zbl 1479.35753 Phys. Lett., A 383, No. 15, 1755-1763 (2019). MSC: 35Q53 35C08 35B09 PDFBibTeX XMLCite \textit{P.-X. Wu} and \textit{Y.-F. Zhang}, Phys. Lett., A 383, No. 15, 1755--1763 (2019; Zbl 1479.35753) Full Text: DOI
Kobilzoda, M. M.; Naimov, A. N. On positive and periodic solutions of one class of systems of nonlinear ordinary differential equations on a plane. (Russian. English summary) Zbl 1460.34049 Vestn. Voronezh. Gos. Univ., Ser. Fiz. Mat. 2019, No. 1, 117-127 (2019). MSC: 34C25 PDFBibTeX XMLCite \textit{M. M. Kobilzoda} and \textit{A. N. Naimov}, Vestn. Voronezh. Gos. Univ., Ser. Fiz. Mat. 2019, No. 1, 117--127 (2019; Zbl 1460.34049) Full Text: Link
Ma, Wen-Xiu Global behavior of a higher-order nonlinear difference equation with many arbitrary multivariate functions. (English) Zbl 1462.39002 East Asian J. Appl. Math. 9, No. 4, 643-650 (2019). MSC: 39A10 39A23 39A30 PDFBibTeX XMLCite \textit{W.-X. Ma}, East Asian J. Appl. Math. 9, No. 4, 643--650 (2019; Zbl 1462.39002) Full Text: DOI
Wang, Hui; Zhang, Lingling; Wang, Xiaoqiang Unique existence results and numerical solutions for fourth-order impulsive differential equations with nonlinear boundary conditions. (English) Zbl 1457.34042 J. Appl. Anal. Comput. 9, No. 5, 1639-1662 (2019). MSC: 34B15 34B18 34B37 PDFBibTeX XMLCite \textit{H. Wang} et al., J. Appl. Anal. Comput. 9, No. 5, 1639--1662 (2019; Zbl 1457.34042) Full Text: DOI
Zhai, Chengbo; Liu, Yuqing An integral boundary value problem of conformable integro-differential equations with a parameter. (English) Zbl 1474.45093 J. Appl. Anal. Comput. 9, No. 5, 1872-1883 (2019). MSC: 45M20 26A33 PDFBibTeX XMLCite \textit{C. Zhai} and \textit{Y. Liu}, J. Appl. Anal. Comput. 9, No. 5, 1872--1883 (2019; Zbl 1474.45093) Full Text: DOI
Huang, Baohua; Ma, Changfeng Some iterative algorithms for positive definite solution to nonlinear matrix equations. (English) Zbl 1490.65079 J. Appl. Anal. Comput. 9, No. 2, 526-546 (2019). MSC: 65F45 15A24 65H10 PDFBibTeX XMLCite \textit{B. Huang} and \textit{C. Ma}, J. Appl. Anal. Comput. 9, No. 2, 526--546 (2019; Zbl 1490.65079) Full Text: DOI
Cheng, Zhibo; Bi, Zhonghua Study on a kind of \(p\)-Laplacian neutral differential equation with multiple variable coefficients. (English) Zbl 1458.34075 J. Appl. Anal. Comput. 9, No. 2, 501-525 (2019). MSC: 34C25 34B16 34B18 PDFBibTeX XMLCite \textit{Z. Cheng} and \textit{Z. Bi}, J. Appl. Anal. Comput. 9, No. 2, 501--525 (2019; Zbl 1458.34075) Full Text: DOI
Wang, Chu-Hang; Ding, Hui-Sheng Existence of positive bounded solutions to a class of neutral integral equations with product perturbations. (English) Zbl 1453.45003 J. Nonlinear Evol. Equ. Appl. 2019, 1-14 (2019). MSC: 45G10 34K37 45M20 PDFBibTeX XMLCite \textit{C.-H. Wang} and \textit{H.-S. Ding}, J. Nonlinear Evol. Equ. Appl. 2019, 1--14 (2019; Zbl 1453.45003) Full Text: Link
Khan, Hasib; Jarad, Fahd; Abdeljawad, Thabet; Khan, Aziz A singular ABC-fractional differential equation with \(p\)-Laplacian operator. (English) Zbl 1448.34047 Chaos Solitons Fractals 129, 56-61 (2019). MSC: 34B10 34A08 34K37 PDFBibTeX XMLCite \textit{H. Khan} et al., Chaos Solitons Fractals 129, 56--61 (2019; Zbl 1448.34047) Full Text: DOI
Prasad, Kapula Rajendra; Khuddush, Md. Stability of positive almost periodic solutions for a fishing model with multiple time varying variable delays on time scales. (English) Zbl 1463.34327 Bull. Int. Math. Virtual Inst. 9, No. 3, 521-533 (2019). MSC: 34K60 34K20 34K42 34K14 47N20 34N05 PDFBibTeX XMLCite \textit{K. R. Prasad} and \textit{Md. Khuddush}, Bull. Int. Math. Virtual Inst. 9, No. 3, 521--533 (2019; Zbl 1463.34327)
Xu, Li; Cui, Debiao Positive periodic solutions of second order singular difference systems. (Chinese. English summary) Zbl 1463.39028 Acta Math. Appl. Sin. 42, No. 3, 289-296 (2019). MSC: 39A23 PDFBibTeX XMLCite \textit{L. Xu} and \textit{D. Cui}, Acta Math. Appl. Sin. 42, No. 3, 289--296 (2019; Zbl 1463.39028)
Sun, Juntao; Cheng, Yi-hsin; Wu, Tsung-fang; Feng, Zhaosheng Positive solutions of a superlinear Kirchhoff type equation in \(\mathbb{R}^N\) \((N \geq 4)\). (English) Zbl 1464.35117 Commun. Nonlinear Sci. Numer. Simul. 71, 141-160 (2019). MSC: 35J60 35J20 35B09 PDFBibTeX XMLCite \textit{J. Sun} et al., Commun. Nonlinear Sci. Numer. Simul. 71, 141--160 (2019; Zbl 1464.35117) Full Text: DOI
Zhang, Zhongxin Similarity solutions to the MHD boundary layer equations with a negative parameter for power-law fluids. (English) Zbl 1443.76249 Comput. Math. Appl. 78, No. 8, 2806-2816 (2019). MSC: 76W05 35C06 35Q35 PDFBibTeX XMLCite \textit{Z. Zhang}, Comput. Math. Appl. 78, No. 8, 2806--2816 (2019; Zbl 1443.76249) Full Text: DOI
Chen, Bin; Ou, Zeng Qi Existence and bifurcation behavior of positive solutions for a class of Kirchhoff-type problems. (English) Zbl 1442.35119 Comput. Math. Appl. 77, No. 10, 2859-2866 (2019). MSC: 35J60 35B09 PDFBibTeX XMLCite \textit{B. Chen} and \textit{Z. Q. Ou}, Comput. Math. Appl. 77, No. 10, 2859--2866 (2019; Zbl 1442.35119) Full Text: DOI
Prasad, K. R.; Khuddush, Md. Existence of countably many symmetric positive solutions for system of even order time scale boundary value problems in Banach spaces. (English) Zbl 1463.47228 Creat. Math. Inform. 28, No. 2, 163-182 (2019). MSC: 47N20 34N05 46G12 PDFBibTeX XMLCite \textit{K. R. Prasad} and \textit{Md. Khuddush}, Creat. Math. Inform. 28, No. 2, 163--182 (2019; Zbl 1463.47228)
Yan, Shulin; Li, Zhiyan Positive solutions for the boundary value problem of Laplacian-like equation with parameter and delay. (Chinese. English summary) Zbl 1449.34219 Math. Pract. Theory 49, No. 22, 248-253 (2019). MSC: 34K10 47N20 PDFBibTeX XMLCite \textit{S. Yan} and \textit{Z. Li}, Math. Pract. Theory 49, No. 22, 248--253 (2019; Zbl 1449.34219)
Su, Xiaoxiao Existence of positive solutions for periodic boundary conditions of singular second-order damped difference equations. (Chinese. English summary) Zbl 1463.39033 J. Shandong Univ., Nat. Sci. 54, No. 12, 38-45 (2019). MSC: 39A27 39A12 34B18 PDFBibTeX XMLCite \textit{X. Su}, J. Shandong Univ., Nat. Sci. 54, No. 12, 38--45 (2019; Zbl 1463.39033) Full Text: DOI
He, Yanqin; Han, Xiaoling Monotone positive solutions of fourth-order boundary value problems with integral boundary conditions. (Chinese. English summary) Zbl 1449.34074 J. Shandong Univ., Nat. Sci. 54, No. 12, 32-37 (2019). MSC: 34B18 34B10 34A45 PDFBibTeX XMLCite \textit{Y. He} and \textit{X. Han}, J. Shandong Univ., Nat. Sci. 54, No. 12, 32--37 (2019; Zbl 1449.34074) Full Text: DOI
Lian, Tong; Yang, Wenbin; Li, Yanling Qualitative analysis of a predator-prey system with Smith growth for prey. (Chinese. English summary) Zbl 1449.35266 J. Biomath. 34, No. 2, 312-322 (2019). MSC: 35K57 35B09 35B35 PDFBibTeX XMLCite \textit{T. Lian} et al., J. Biomath. 34, No. 2, 312--322 (2019; Zbl 1449.35266)
Li, Xiaolong Positive solutions for fractional boundary value problems of a class in ordered Banach spaces. (Chinese. English summary) Zbl 1449.34079 J. Anhui Norm. Univ., Nat. Sci. 42, No. 6, 515-519 (2019). MSC: 34B18 34A08 47N20 PDFBibTeX XMLCite \textit{X. Li}, J. Anhui Norm. Univ., Nat. Sci. 42, No. 6, 515--519 (2019; Zbl 1449.34079) Full Text: DOI
Zhao, Yang; Wang, Xiamei; Yang, Zhilin Positive solutions of integral boundary value problem involving derivative boundary conditions. (Chinese. English summary) Zbl 1449.34097 Math. Pract. Theory 49, No. 19, 308-314 (2019). MSC: 34B18 34B10 47N20 PDFBibTeX XMLCite \textit{Y. Zhao} et al., Math. Pract. Theory 49, No. 19, 308--314 (2019; Zbl 1449.34097)
Guan, Xungui On the Diophantine equation \(X^2 + 4Y^4 = pZ^4\). (Chinese. English summary) Zbl 1449.11057 Math. Pract. Theory 49, No. 18, 279-284 (2019). MSC: 11D25 PDFBibTeX XMLCite \textit{X. Guan}, Math. Pract. Theory 49, No. 18, 279--284 (2019; Zbl 1449.11057)
Xu, Liping; Chen, Haibo Positive solutions for Kirchhoff-type equations with an asymptotically nonlinearity. (English) Zbl 1449.35026 Math. Appl. 32, No. 4, 900-909 (2019). MSC: 35B09 35J60 PDFBibTeX XMLCite \textit{L. Xu} and \textit{H. Chen}, Math. Appl. 32, No. 4, 900--909 (2019; Zbl 1449.35026)
Shen, Jianghong; Gao, Li; Zhang, Mingli Solvability of a ternary variable coefficient of Euler functional equation with constant terms and a perfect number. (Chinese. English summary) Zbl 1449.11009 J. Yunnan Minzu Univ., Nat. Sci. 28, No. 5, 455-461 (2019). MSC: 11A25 PDFBibTeX XMLCite \textit{J. Shen} et al., J. Yunnan Minzu Univ., Nat. Sci. 28, No. 5, 455--461 (2019; Zbl 1449.11009)
Li, Zhaoqian Existence of positive solutions for a class of second order periodic boundary value problems with one parameter. (Chinese. English summary) Zbl 1449.34080 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 6, 1026-1032 (2019). MSC: 34B18 34C25 47N20 34B09 PDFBibTeX XMLCite \textit{Z. Li}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 6, 1026--1032 (2019; Zbl 1449.34080) Full Text: DOI
Su, Xiaoxiao Existence of positive solutions for a class of singular second-order ordinary differential equations with nonlinear boundary condition. (Chinese. English summary) Zbl 1449.34087 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 6, 1019-1025 (2019). MSC: 34B18 34B16 34B27 47N20 34B09 34B08 PDFBibTeX XMLCite \textit{X. Su}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 6, 1019--1025 (2019; Zbl 1449.34087) Full Text: DOI
Ma, Mantang; Jia, Kaijun Existence and multiplicity of positive solutions for a class of second-order boundary value problems. (Chinese. English summary) Zbl 1449.34082 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 6, 1014-1018 (2019). MSC: 34B18 47N20 PDFBibTeX XMLCite \textit{M. Ma} and \textit{K. Jia}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 6, 1014--1018 (2019; Zbl 1449.34082) Full Text: DOI
Zhang, Yali Existence of positive solutions for a class of nonlinear fourth-order ordinary differential equations with boundary values. (Chinese. English summary) Zbl 1449.34095 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 6, 1004-1008 (2019). MSC: 34B18 34B09 47N20 PDFBibTeX XMLCite \textit{Y. Zhang}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 6, 1004--1008 (2019; Zbl 1449.34095) Full Text: DOI
Miao, Liangying; Liu, Xilan; He, Zhiqian Existence of positive periodic solutions of second-order differential equation with weak singularity. (English) Zbl 1449.34121 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 5, 797-801 (2019). MSC: 34C25 34A34 47N20 PDFBibTeX XMLCite \textit{L. Miao} et al., J. Sichuan Univ., Nat. Sci. Ed. 56, No. 5, 797--801 (2019; Zbl 1449.34121) Full Text: DOI
Zhang, Lu; Yang, He Positive periodic solutions for a class of differential equations involving parameter and multiple delays. (Chinese. English summary) Zbl 1449.34238 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 5, 785-791 (2019). MSC: 34K13 PDFBibTeX XMLCite \textit{L. Zhang} and \textit{H. Yang}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 5, 785--791 (2019; Zbl 1449.34238) Full Text: DOI
Zhu, Xiaolin; Zhai, Chengbo Local existence and uniqueness of positive solutions for a Sturm-Liouville boundary value problem of second order differential equations. (Chinese. English summary) Zbl 1449.34099 J. Shandong Univ., Nat. Sci. 54, No. 10, 91-96, 108 (2019). MSC: 34B18 34B24 PDFBibTeX XMLCite \textit{X. Zhu} and \textit{C. Zhai}, J. Shandong Univ., Nat. Sci. 54, No. 10, 91--96, 108 (2019; Zbl 1449.34099) Full Text: DOI
Wei, Jinying; Wang, Suyun; Li, Yongjun Existence of positive solutions to a semipositone second-order boundary value problem. (Chinese. English summary) Zbl 1449.34090 J. Shandong Univ., Nat. Sci. 54, No. 10, 7-12 (2019). MSC: 34B18 34B27 47N20 PDFBibTeX XMLCite \textit{J. Wei} et al., J. Shandong Univ., Nat. Sci. 54, No. 10, 7--12 (2019; Zbl 1449.34090) Full Text: DOI
Song, Junqiu; Jia, Mei; Liu, Xiping; Li, Lin Existence of positive solutions for fractional nonhomogeneous boundary value problem with \(p\)-Laplacian. (Chinese. English summary) Zbl 1449.34085 J. Shandong Univ., Nat. Sci. 54, No. 10, 57-66, 73 (2019). MSC: 34B18 34A08 34B10 34B08 PDFBibTeX XMLCite \textit{J. Song} et al., J. Shandong Univ., Nat. Sci. 54, No. 10, 57--66, 73 (2019; Zbl 1449.34085) Full Text: DOI
Luo, Qiang; Han, Xiaoling; Yang, Zhonggui Existence of positive solutions for boundary value problems of third-order delay differential equations. (Chinese. English summary) Zbl 1449.34218 J. Shandong Univ., Nat. Sci. 54, No. 10, 33-39 (2019). MSC: 34K10 47N20 PDFBibTeX XMLCite \textit{Q. Luo} et al., J. Shandong Univ., Nat. Sci. 54, No. 10, 33--39 (2019; Zbl 1449.34218) Full Text: DOI
Hu, Xiaona; Yue, Xiaorui; Li, Shengjun The least energy solution for \(k\)-coupled Schrödinger equations with critical exponent. (Chinese. English summary) Zbl 1449.35044 J. Nat. Sci. Heilongjiang Univ. 36, No. 4, 420-425 (2019). MSC: 35B33 35Q55 PDFBibTeX XMLCite \textit{X. Hu} et al., J. Nat. Sci. Heilongjiang Univ. 36, No. 4, 420--425 (2019; Zbl 1449.35044) Full Text: DOI
Zhu, Yan Existence of positive solutions of a class of first-order singular differential equations with nonlinear boundary conditions. (Chinese. English summary) Zbl 1449.34069 J. Jilin Univ., Sci. 57, No. 5, 1035-1040 (2019). MSC: 34B16 34B18 34B09 47N20 PDFBibTeX XMLCite \textit{Y. Zhu}, J. Jilin Univ., Sci. 57, No. 5, 1035--1040 (2019; Zbl 1449.34069) Full Text: DOI
Sun, Rui; Zhou, Wenxue Existence of multiple positive solutions for a class of fractional differential equations with integral boundary value conditions. (Chinese. English summary) Zbl 1449.34086 J. Anhui Norm. Univ., Nat. Sci. 42, No. 4, 322-327, 340 (2019). MSC: 34B18 34A08 34B10 47N20 PDFBibTeX XMLCite \textit{R. Sun} and \textit{W. Zhou}, J. Anhui Norm. Univ., Nat. Sci. 42, No. 4, 322--327, 340 (2019; Zbl 1449.34086) Full Text: DOI
Li, Jianglong; Luo, Ming; Lin, Lijuan On the positive integer solution of Diophantine equation \(x (x+1) (x+2) (x+3) = 42y (y+1) (y+2) (y+3)\). (Chinese. English summary) Zbl 1449.11058 Basic Sci. J. Text. Univ. 32, No. 3, 293-297 (2019). MSC: 11D25 PDFBibTeX XMLCite \textit{J. Li} et al., Basic Sci. J. Text. Univ. 32, No. 3, 293--297 (2019; Zbl 1449.11058) Full Text: DOI
Zhu, Jie; Liao, Qunying The solvability of the equation \(Z (n) = \varphi_e(\mathrm{SL}(n))\). (Chinese. English summary) Zbl 1449.11016 Adv. Math., Beijing 48, No. 5, 541-554 (2019). MSC: 11A25 PDFBibTeX XMLCite \textit{J. Zhu} and \textit{Q. Liao}, Adv. Math., Beijing 48, No. 5, 541--554 (2019; Zbl 1449.11016)
Ji, Lei; Liao, Jiafeng Existence of the second positive solution for a class of nonhomogeneous Kirchhoff type problems with critical exponent. (Chinese. English summary) Zbl 1449.35021 Acta Math. Sci., Ser. A, Chin. Ed. 39, No. 5, 1094-1101 (2019). MSC: 35B09 35B33 35A15 35J60 PDFBibTeX XMLCite \textit{L. Ji} and \textit{J. Liao}, Acta Math. Sci., Ser. A, Chin. Ed. 39, No. 5, 1094--1101 (2019; Zbl 1449.35021)
Raffoul, Youssef N.; Yankson, Ernest Positive periodic solutions of functional discrete systems with a parameter. (English) Zbl 1441.39008 Cubo 21, No. 1, 79-94 (2019). MSC: 39A23 39A10 92D25 PDFBibTeX XMLCite \textit{Y. N. Raffoul} and \textit{E. Yankson}, Cubo 21, No. 1, 79--94 (2019; Zbl 1441.39008) Full Text: DOI
Precup, Radu A variational analogue of Krasnoselskii’s cone fixed point theory. (English) Zbl 1441.47090 Area, Iván (ed.) et al., Nonlinear analysis and boundary value problems. NABVP 2018, Santiago de Compostela, Spain, September 4–7, 2018. Proceedings of the international conference. Dedicated to Juan J. Nieto on the occasion of his 60th birthday. Cham: Springer. Springer Proc. Math. Stat. 292, 1-18 (2019). Reviewer: Dian K. Palagachev (Bari) MSC: 47J30 47N20 34G20 47H10 PDFBibTeX XMLCite \textit{R. Precup}, Springer Proc. Math. Stat. 292, 1--18 (2019; Zbl 1441.47090) Full Text: DOI
Dhanya, Rajendran; Shivaji, Ratnasingham; Son, Byungjae A three solution theorem for a singular differential equation with nonlinear boundary conditions. (English) Zbl 1441.34040 Topol. Methods Nonlinear Anal. 54, No. 2A, 445-457 (2019). MSC: 34B16 34B18 PDFBibTeX XMLCite \textit{R. Dhanya} et al., Topol. Methods Nonlinear Anal. 54, No. 2A, 445--457 (2019; Zbl 1441.34040) Full Text: DOI Euclid
Goodrich, Christopher S. Coercive functionals and their relationship to multiplicity of solution to nonlocal boundary value problems. (English) Zbl 1436.45005 Topol. Methods Nonlinear Anal. 54, No. 2A, 409-426 (2019). Reviewer: Stepan Agop Tersian (Rousse) MSC: 45G10 45M20 34B10 PDFBibTeX XMLCite \textit{C. S. Goodrich}, Topol. Methods Nonlinear Anal. 54, No. 2A, 409--426 (2019; Zbl 1436.45005) Full Text: DOI Euclid
Korosteleva, D. M.; Solov’ev, P. S.; Solov’ev, S. I. Finite element approximation of the minimal eigenvalue and the corresponding positive eigenfunction of a nonlinear Sturm-Liouville problem. (English) Zbl 1507.65131 Lobachevskii J. Math. 40, No. 11, 1959-1966 (2019). MSC: 65L15 65H17 34B24 65L60 PDFBibTeX XMLCite \textit{D. M. Korosteleva} et al., Lobachevskii J. Math. 40, No. 11, 1959--1966 (2019; Zbl 1507.65131) Full Text: DOI
Yang, Xianyong; Tang, Xianhua; Zhang, Youpei Positive, negative, and sign-changing solutions to a quasilinear Schrödinger equation with a parameter. (English) Zbl 1435.35363 J. Math. Phys. 60, No. 12, 121510, 24 p. (2019). MSC: 35Q55 35J62 35B09 PDFBibTeX XMLCite \textit{X. Yang} et al., J. Math. Phys. 60, No. 12, 121510, 24 p. (2019; Zbl 1435.35363) Full Text: DOI
Huang, Shao-Yuan; Hung, Kuo-Chih; Wang, Shin-Hwa A global bifurcation theorem for a multiparameter positone problem and its application to the one-dimensional perturbed Gelfand problem. (English) Zbl 1449.34075 Electron. J. Qual. Theory Differ. Equ. 2019, Paper No. 99, 25 p. (2019). MSC: 34B18 34B08 34C23 PDFBibTeX XMLCite \textit{S.-Y. Huang} et al., Electron. J. Qual. Theory Differ. Equ. 2019, Paper No. 99, 25 p. (2019; Zbl 1449.34075) Full Text: DOI
Ming, Zhongyang; Zhang, Guowei; Li, Hongyu Positive solutions of a derivative dependent second-order problem subject to Stieltjes integral boundary conditions. (English) Zbl 1449.34084 Electron. J. Qual. Theory Differ. Equ. 2019, Paper No. 98, 15 p. (2019). MSC: 34B18 34B10 34B15 47N20 PDFBibTeX XMLCite \textit{Z. Ming} et al., Electron. J. Qual. Theory Differ. Equ. 2019, Paper No. 98, 15 p. (2019; Zbl 1449.34084) Full Text: DOI
Ho, Vu; Huynh, Nhat Vy; Le, Phuong Solutions of homogeneous fractional \(p\)-Kirchhoff equations in \(\mathbb{R}^N\). (English) Zbl 1449.35439 Miskolc Math. Notes 20, No. 2, 957-968 (2019). MSC: 35R11 35J92 35B08 35B09 PDFBibTeX XMLCite \textit{V. Ho} et al., Miskolc Math. Notes 20, No. 2, 957--968 (2019; Zbl 1449.35439) Full Text: DOI
Yang, Wengui Positive solutions for a singular coupled system of nonlinear higher-order fractional \(q\)-difference boundary value problems with two parameters. (English) Zbl 1431.39005 Differ. Equ. Appl. 11, No. 4, 509-529 (2019). MSC: 39A13 39A12 39A27 26A33 34B18 34A08 PDFBibTeX XMLCite \textit{W. Yang}, Differ. Equ. Appl. 11, No. 4, 509--529 (2019; Zbl 1431.39005) Full Text: DOI
Shakeri, Saleh; Hadjian, Armin On the existence results for \((p,q)\)-Kirchhoff type systems with multiple parameters. (English) Zbl 1449.35214 Jordan J. Math. Stat. 12, No. 4, 581-591 (2019). MSC: 35J57 35B09 35J60 35J92 PDFBibTeX XMLCite \textit{S. Shakeri} and \textit{A. Hadjian}, Jordan J. Math. Stat. 12, No. 4, 581--591 (2019; Zbl 1449.35214) Full Text: Link
Kaczorek, Tadeusz Positivity of fractional descriptor linear discrete-time systems. (English) Zbl 1430.93099 Int. J. Appl. Math. Comput. Sci. 29, No. 2, 305-310 (2019). MSC: 93C28 93C55 93C15 26A33 93C05 PDFBibTeX XMLCite \textit{T. Kaczorek}, Int. J. Appl. Math. Comput. Sci. 29, No. 2, 305--310 (2019; Zbl 1430.93099) Full Text: DOI
Carapito, Ana C. Stabilization criteria of a class of switched systems. (English) Zbl 1432.93257 Math. Methods Appl. Sci. 42, No. 17, 5827-5833 (2019). MSC: 93D05 93C28 93C30 93C05 PDFBibTeX XMLCite \textit{A. C. Carapito}, Math. Methods Appl. Sci. 42, No. 17, 5827--5833 (2019; Zbl 1432.93257) Full Text: DOI
Pati, Smita Existence of periodic solutions for first order differential equations with applications. (English) Zbl 1430.34057 Smith, Frank T. (ed.) et al., Mathematics applied to engineering, modelling, and social issues. Cham: Springer. Stud. Syst. Decis. Control 200, 333-361 (2019). MSC: 34C25 34A05 PDFBibTeX XMLCite \textit{S. Pati}, Stud. Syst. Decis. Control 200, 333--361 (2019; Zbl 1430.34057) Full Text: DOI
Deng, Nai-Juan; Wu, Dan-Yao; Yuan, Ping-Zhi The exponential Diophantine equation \((3am^2-1)^x+(a(a-3)m^2+1)^y=(am)^z\). (English) Zbl 1448.11071 Turk. J. Math. 43, No. 5, 2561-2567 (2019). MSC: 11D61 PDFBibTeX XMLCite \textit{N.-J. Deng} et al., Turk. J. Math. 43, No. 5, 2561--2567 (2019; Zbl 1448.11071) Full Text: Link
Mansouri, Mahmoud; Nassiri, Kameleh Positivity of continuous time irregular linear descriptor systems. (English) Zbl 1432.93125 Turk. J. Math. 43, No. 5, 2161-2169 (2019). MSC: 93C05 93C28 15B48 PDFBibTeX XMLCite \textit{M. Mansouri} and \textit{K. Nassiri}, Turk. J. Math. 43, No. 5, 2161--2169 (2019; Zbl 1432.93125) Full Text: Link
Bourguiba, Rim; Toumi, Faten Existence results for a semipositone singular fractional differential equation. (English) Zbl 1482.34061 Rocky Mt. J. Math. 49, No. 8, 2495-2512 (2019). Reviewer: Chuanzhi Bai (Huaian) MSC: 34B10 34A08 34B27 34B18 47N20 34B16 34B08 PDFBibTeX XMLCite \textit{R. Bourguiba} and \textit{F. Toumi}, Rocky Mt. J. Math. 49, No. 8, 2495--2512 (2019; Zbl 1482.34061) Full Text: DOI Euclid
Gupta, Vidushi; Dabas, Jaydev Positive solutions for fractional integro-boundary value problem of order \((1,2)\) on an unbounded domain. (English) Zbl 1434.34011 Differ. Equ. Appl. 11, No. 3, 319-333 (2019). MSC: 34A08 34B18 34B40 34B27 47N20 PDFBibTeX XMLCite \textit{V. Gupta} and \textit{J. Dabas}, Differ. Equ. Appl. 11, No. 3, 319--333 (2019; Zbl 1434.34011) Full Text: DOI
Haghi, Tahereh; Ghanbari, Kazem; Mingarelli, Angelo B. Existence of positive solutions for regular fractional Sturm-Liouville problems. (English) Zbl 1449.34018 Fract. Differ. Calc. 9, No. 2, 279-294 (2019). MSC: 34A08 34B09 34B18 34B24 PDFBibTeX XMLCite \textit{T. Haghi} et al., Fract. Differ. Calc. 9, No. 2, 279--294 (2019; Zbl 1449.34018) Full Text: DOI
Cui, Xiaoxiao; Cheng, Zhibo; Yao, Shaowen The existence of positive periodic solutions for a kind of generalized Liénard equation. (Chinese. English summary) Zbl 1449.34118 Math. Appl. 32, No. 3, 699-708 (2019). MSC: 34C25 34D05 34D20 34A34 47N20 PDFBibTeX XMLCite \textit{X. Cui} et al., Math. Appl. 32, No. 3, 699--708 (2019; Zbl 1449.34118)
Li, Xingxing; Nie, Hua Coexistence solutions of the unstirred chemostat model with internal storage. (Chinese. English summary) Zbl 1449.35270 Math. Appl. 32, No. 3, 503-514 (2019). MSC: 35K57 35B09 PDFBibTeX XMLCite \textit{X. Li} and \textit{H. Nie}, Math. Appl. 32, No. 3, 503--514 (2019; Zbl 1449.35270)
Ma, Mantang Global structure of positive solutions for a class of nonlinear second-order discrete three-point boundary value problems. (Chinese. English summary) Zbl 1463.39032 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 4, 621-626 (2019). MSC: 39A27 34B10 34B18 PDFBibTeX XMLCite \textit{M. Ma}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 4, 621--626 (2019; Zbl 1463.39032) Full Text: DOI
Cai, Huize; Han, Xiaoling Existence of positive solutions for a class of nonlinear fractional differential equations with boundary values. (Chinese. English summary) Zbl 1449.34071 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 4, 614-620 (2019). MSC: 34B18 34A08 47N20 PDFBibTeX XMLCite \textit{H. Cai} and \textit{X. Han}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 4, 614--620 (2019; Zbl 1449.34071) Full Text: DOI
Zhu, Yan Existence of positive periodic solutions for a class of first-order functional differential equations. (Chinese. English summary) Zbl 1449.34239 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 4, 607-613 (2019). MSC: 34K13 34K10 34K18 PDFBibTeX XMLCite \textit{Y. Zhu}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 4, 607--613 (2019; Zbl 1449.34239) Full Text: DOI
Zheng, Fengxia; Gu, Chuanyun Existence and uniqueness of positive solutions for a class of fractional impulsive differential equations with boundary value problems. (English) Zbl 1449.34098 J. Sichuan Univ., Nat. Sci. Ed. 56, No. 4, 600-606 (2019). MSC: 34B18 34B37 34A08 47N20 PDFBibTeX XMLCite \textit{F. Zheng} and \textit{C. Gu}, J. Sichuan Univ., Nat. Sci. Ed. 56, No. 4, 600--606 (2019; Zbl 1449.34098) Full Text: DOI
Chen, Ruipeng; Li, Xiaoya Positive periodic solutions for second-order singular differential equations with damping terms. (Chinese. English summary) Zbl 1449.34072 J. Shandong Univ., Nat. Sci. 54, No. 8, 33-41 (2019). MSC: 34B18 34B16 34C25 47N20 PDFBibTeX XMLCite \textit{R. Chen} and \textit{X. Li}, J. Shandong Univ., Nat. Sci. 54, No. 8, 33--41 (2019; Zbl 1449.34072) Full Text: DOI
Sang, Yanbin; Chen, Juan; Ren, Yan Uniqueness of positive solutions of singular \(p\)-biharmonic equations with Hardy terms. (Chinese. English summary) Zbl 1449.35023 J. Shandong Univ., Nat. Sci. 54, No. 6, 75-80 (2019). MSC: 35B09 35J75 PDFBibTeX XMLCite \textit{Y. Sang} et al., J. Shandong Univ., Nat. Sci. 54, No. 6, 75--80 (2019; Zbl 1449.35023) Full Text: DOI
Lair, Alan V. Entire large solutions to semilinear elliptic systems of competitive type. (English) Zbl 1449.35018 J. Partial Differ. Equations 32, No. 1, 52-65 (2019). MSC: 35B08 35B09 35J61 PDFBibTeX XMLCite \textit{A. V. Lair}, J. Partial Differ. Equations 32, No. 1, 52--65 (2019; Zbl 1449.35018) Full Text: DOI
Zhang, Sibao; Yoldax, Akim Two equations on generalized Euler function \({\varphi_2} (n)\). (Chinese. English summary) Zbl 1449.11015 J. Northeast Norm. Univ., Nat. Sci. Ed. 51, No. 2, 7-12 (2019). MSC: 11A25 PDFBibTeX XMLCite \textit{S. Zhang} and \textit{A. Yoldax}, J. Northeast Norm. Univ., Nat. Sci. Ed. 51, No. 2, 7--12 (2019; Zbl 1449.11015) Full Text: DOI
Zhang, Sibao Solutions on Euler function equation \(\varphi (n) = {2^{\omega (n)}}{3^{\omega (n)}}{5^{\omega (n)}}\). (Chinese. English summary) Zbl 1449.11014 J. Nanchang Univ., Nat. Sci. 43, No. 2, 114-119 (2019). MSC: 11A25 PDFBibTeX XMLCite \textit{S. Zhang}, J. Nanchang Univ., Nat. Sci. 43, No. 2, 114--119 (2019; Zbl 1449.11014)
Wang, Suyun; Wei, Jinying; Zhang, Yanhong Relationship between number of zeros of nonlinear term and number of positive solutions of second-order periodic boundary value problems. (Chinese. English summary) Zbl 1449.34089 J. Jilin Univ., Sci. 57, No. 2, 327-330 (2019). MSC: 34B18 47N20 34B08 PDFBibTeX XMLCite \textit{S. Wang} et al., J. Jilin Univ., Sci. 57, No. 2, 327--330 (2019; Zbl 1449.34089) Full Text: DOI