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兰州大学机构库
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Oscillation criteria for second-order half-linear ordinary differential equations with damping 期刊论文
ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2003, 卷号: 33, 期号: 3, 页码: 927-951
Authors:  Li, WT(李万同);  Zhong, CK(钟承奎);  Fan, XL(范先令);  Li, WT (reprint author), Lanzhou Univ, Dept Math, Lanzhou 730000, Peoples R China.
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Oscillation  Second Order  Half-linear Differential Equations  Damping  
On unbounded positive solutions of second-order difference equations with a singular nonlinear term 期刊论文
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2000, 卷号: 246, 期号: 1, 页码: 80-88
Authors:  Li, WT(李万同);  Fan, XL(范先令);  Zhong, CK(钟承奎);  Li, WT (reprint author), Lanzhou Univ, Dept Math, Lanzhou 730000, Gansu, Peoples R China.
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positive solution  decreasing nonlinear term  singular nonlinear equations  
Monotone solutions of second-order nonlinear differential equations 期刊论文
APPLIED MATHEMATICS LETTERS, 2000, 卷号: 13, 期号: 4, 页码: 65-70
Authors:  Li, WT(李万同);  Fan, XL(范先令);  Li, WT (reprint author), Gansu Univ Technol, Inst Appl Math, Lanzhou 730050, Gansu, Peoples R China.
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monotone solution  nonlinear differential equations  comparison theorem  
A classification scheme for positive solutions of second order nonlinear iterative differential equations 期刊论文
Electronic Journal of Differential Equations, 2000, 页码: -
Authors:  Fan, XL(范先令);  Li, WT(李万同);  Zhong, CK(钟承奎);  Fan, XL (reprint author), Lanzhou Univ, Dept Math, Lanzhou 730000, Gansu, Peoples R China.
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Nonlinear iterative differential equation  oscillation  eventually positive  asymptotic behavior  
Unbounded positive solutions of higher-order difference equations with singular nonlinear term 期刊论文
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2000, 卷号: 39, 期号: 3-4, 页码: 177-184
Authors:  Li, WT(李万同);  Fan, XL(范先令);  Zhong, CK(钟承奎);  Li, WT (reprint author), Gansu Univ Technol, Inst Appl Math, Lanzhou 730050, Gansu, Peoples R China.
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positive solution  decreasing nonlinear term  singular nonlinear equations  
Existence and asymptotic behavior of positive solutions of higher-order nonlinear difference equations with delay 期刊论文
MATH COMPUT MODEL, 1999, 卷号: 29, 期号: 9, 页码: 39-47
Authors:  Li, WT(李万同);  Fei, XL;  Fan, XL(范先令);  Li, WT (reprint author), Gansu Univ Technol, Inst Appl Math, Lanzhou 730050, Gansu, Peoples R China.
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positive solution  higher-order nonlinear difference equation  fixed-point theorem  
Oscillation criteria for second-order nonlinear difference equations with damped term 期刊论文
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 1999, 卷号: 37, 期号: 6, 页码: 17-30
Authors:  Li, WT(李万同);  Fan, XL(范先令);  Li, WT (reprint author), Gansu Univ Technol, Inst Appl Math, Lanzhou 730050, Gansu, Peoples R China.
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damped  difference equations  oscillation  nonoscillation