数学季刊 ›› 1996, Vol. 11 ›› Issue (4): 13-18.
摘要: Boundary value problems for differential equations in Banach spaces have a wide-ranging actul background(see [2]),S. Szufla([5])had proved an existence theorem for such problem. In this paper,we will improve his result and get a new existence theorem using Daher's fixed point theorem.
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