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Lili Gao Dept.of Math.and Physics Bengbu College Bengbu Anhui Lianglong Wang 《Annals of Differential Equations》2012,(1):32-37
This paper is concerned with the existence of positive periodic solutions to a second order functional differential equation with infinite delay.Under the appropriate conditions,some existence and multiplicity of positive periodic solutions are derived by an abstract fixed-point theorem. 相似文献
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李柏年 《高校应用数学学报(A辑)》1996,(1):27-30
本文对局部广义高斯序列得到了r阶绝对矩的上界不等式,进而对由其生成的广义线性过程{Xn}给出了a.s.收敛的充分条件。 相似文献
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