Existence and uniqueness theorems for some fourth-order nonlinear boundary value problems by Ruyun Ma

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On a Fourth-Order Boundary Value Problem at Resonance by Man Xu, Ruyun Ma

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Periodic Solutions of Second Order Nonlinear Difference Equations with Singular ϕ-Laplacian Operator by Ruyun Ma, Yanqiong Lu

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Positive Solutions of the One-Dimensional p-Laplacian with Nonlinearity Defined on a Finite Interval by Ruyun Ma, Chunjie Xie, Abubaker Ahmed

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Global Bifurcation of Positive Solutions of Asymptotically Linear Elliptic Problems by Ruyun Ma, Yanqiong Lu, Ruipeng Chen

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Method of Lower and Upper Solutions for Elliptic Systems with Nonlinear Boundary Condition and Its Applications by Ruyun Ma, Ruipeng Chen, Yanqiong Lu

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Spectrum of Discrete Second-Order Neumann Boundary Value Problems with Sign-Changing Weight by Ruyun Ma, Chenghua Gao, Yanqiong Lu

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Existence of Positive Solutions of a Discrete Elastic Beam Equation by Ruyun Ma, Jiemei Li, Chenghua Gao

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Nodal Solutions of the p-Laplacian with Sign-Changing Weight by Ruyun Ma, Xilan Liu, Jia Xu

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S-Shaped Connected Component for Nonlinear Fourth-Order Problem of Elastic Beam Equation by Jinxiang Wang, Ruyun Ma, Jin Wen

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Global Structure of Positive Solutions of a Discrete Problem with Sign-Changing Weight by Ruyun Ma, Chenghua Gao, Xiaoling Han, Xiaoqiang Chen

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