摘要
本文给出了二阶滞后方程 (r(t)x'(t))'+a(t)x"(t-τ(t))=f(t)的振动解渐近趋于零的若干充分条件。
In this paper, several sufficient conditions have been found to ensure that all oscillatory solutions of (r(t)x'(t)Y + a(t)xn(t - i(t)) - f(t) approach zero asymptotically where 0<a<1 and a is a ratio of odd integers.
出处
《工程数学学报》
CSCD
1991年第1期61-66,共6页
Chinese Journal of Engineering Mathematics
