摘要
本篇論文主要是探討下列在 Banach 空間X上的高階抽象柯西問題(Higher order abstract Cauchy problem with initial data)，
其中Ai 為在X上 C0半群的生成元，滿足某些條件，且f(t,u) 亦滿足某些適當條件下，我們證明了解的存在性和唯一性，並得到解的表現式。

This paper discusses the higher order abstract Cauchy problem with initial data on a Banach space X.Where Ai is a C0-semigroup
on X.We get the existance,uniqueness,and presentation of solution.

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