| Volume 41,Issue 4,2021 Table of Contents
Contents | | | Three-Way Granular Approximations Based on Bisimulations | | Zhilian GUO, Hailong YANG, Lijuan ZHANG | | 2021,41(4):331-339 [Abstract(577)] [View PDF 463.89 K (582)] | | | | Minimum $k$-Path Vertex Cover in Cartesian Product Graphs | | Huiling YIN, Binbin HAO, Xiaoyan SU, Jingrong CHEN | | 2021,41(4):340-348 [Abstract(579)] [View PDF 737.57 K (513)] | | | | $b$-Generalized Derivations on Prime Rings | | Shuliang HUANG | | 2021,41(4):349-354 [Abstract(605)] [View PDF 109.60 K (508)] | | | | Harmonic Univalent Functions Related with Generalized $(p,q)$-Post Quantum Calculus Operators | | Shuhai LI, Li-na MA, Xiaomeng NIU | | 2021,41(4):355-367 [Abstract(643)] [View PDF 179.62 K (376)] | | | | Spatial Dynamics of Competing Model in a Periodic Unstirred Chemostat with Delay | | Wujun PU, Ya WANG | | 2021,41(4):368-382 [Abstract(554)] [View PDF 200.17 K (340)] | | | | The Existence and Non-Existence of Positive Steady State Solutions for a Cross-Diffusion Predator-Prey Model with Holling Type II Functional Response | | Shuping CAO, Li-na ZHANG | | 2021,41(4):383-392 [Abstract(729)] [View PDF 119.29 K (386)] | | | | Essential Norm of Toeplitz Operators on Dirichlet-Type Spaces | | Jianjun CHEN, Jiesheng XIAO | | 2021,41(4):393-400 [Abstract(601)] [View PDF 119.29 K (344)] | | | | Oscillation Property for the Eigenfunctions of Discrete Clamped Beam Equation and Its Applications | | Yanqiong LU, Rui WANG | | 2021,41(4):401-415 [Abstract(544)] [View PDF 165.78 K (393)] | | | | On Some Generalized Countably Compact Spaces II | | Erguang YANG | | 2021,41(4):416-424 [Abstract(670)] [View PDF 127.83 K (401)] | | | | Design of Triharmonic Triangular B\'{e}zier Surfaces | | Yan WU, Chungang ZHU | | 2021,41(4):425-440 [Abstract(461)] [View PDF 1.55 M (426)] | | |
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