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• Bi-Center Problem in a Class of $Z_2$-Equivariant Quintic Vector Fields

  Hongwei Li, Feng Li, Pei Yu

  2024-04-09

  22042 2556 Pages:57-78 Open-access

• Existence and Multiplicity of Positive Solutions for a Singular Nonlinear High Order Fractional Differential Problem with Multi-Point Boundary Conditions

  Di Wang, Jiqiang Jiang

  2024-04-10

  19299 2128 Pages:603-616 Open-access

• Asymptotic Expansion of Solutions to Singular Perturbation Problems in Critical Cases

  Hao Zhang, Na Wang

  2024-04-10

  16670 1815 Pages:637-647 Open-access

• Three Weak Solutions for ($p(x)$,$q(x)$)-Biharmonic Problem with Hardy Weight with Two Parameters

  Ibrahim Chamlal, Mohamed Talbi, Najib Tsouli, Mohammed Filali

  2025-06-03

  2542 448 Pages:823-839 Open-access

• Eigenvalues of Fourth-Order Singular Sturm-Liouville Boundary Value Problems

  Lina Zhou, Weihua Jiang, Qiaoluan Li

  2024-04-10

  22032 2461 Pages:485-493 Open-access

• The Center Conditions and Hopf Cyclicity for a 3D Lotka-Volterra System

  Qinlong Wang, Jingping Lu, Wentao Huang, Bo Sang

  2024-04-09

  24771 2646 Pages:1-12 Open-access