运用强连续余弦算子族理论、压缩映像原理以及Gronwall-Bellman型积分不等式,研究了建立在Banach空间上一类二阶半线性非齐次算子微分系统解的存在性等性质.研究结果表明:在一定条件下系统存在唯一解并且解对初值具有连续依赖性;同时还证明了解的有界性,并对解进行了估计.
By using the theory of the strongly continuous cosine family, the principle of properties of solutions of a second order semi-linear and nonhomogeneous operator-differential system in a Banach space are investigated. It is proved that the system has a unique solution and it continuously depends on the initial values under certain conditions; furthermore, the boundedness and the prior estimation on the solution are also presented.