摘要
在本文中,我们研究了Banach空间中非完全二阶微分方程u^n(t)+Au(t)(t∈R),(其中A是一Banach空间中的闭稠定线性算子)的解的概周期性,给出了几个有意义的判别准则。
In this paper, we investigate the almost periodicity of solutions for incomplete second linear differential equations in Banach spaces u'(t) = Au(t), (t∈R) (whom A is a densely defined closed linear operator in a Banach space), and give some useful criterions.
出处
《云南师范大学学报(自然科学版)》
1992年第4期10-13,共4页
Journal of Yunnan Normal University:Natural Sciences Edition
关键词
微分方程
解
概周期性
巴拿赫空间
Incomplete second differential equation Solution Almost periodicity Banach space Eigenvectors.