四阶脉冲弹性梁方程非平凡弱解的存在数量
刘健, 赵增勤, 于文广
The Numbers of Nontrivial Weak Solutions to Fourth-order Impulsive Elastic Beam Equations
Jian LIU, Zeng Qin ZHAO, Wen Guang YU
数学学报 . 2021, (1): 99 -106 .  DOI: 10.12386/A20210008