共振条件下2k阶微分方程周期边值问题解的存在唯一性
冯艳青, 王忠英
The Existence and Uniqueness of the Solution for Periodical Boundary Value Problems of 2kth Order Differential Equations with Resonance
FENG Yan-qing, WANG Zhong-ying
数学季刊 . 2014, (2): 203 -209 .  DOI: 10.13371/j.cnki.chin.q.j.m.2014.02.007