一类无穷区间上的分数阶微分方程边值问题解的存在性

Abstract

利用Leray-Schauder非线性抉择定理以及Leggett-Williams不动点定理研究了一类无穷区间上的分数阶微分方程积分边值问题，获得了该边值问题至少存在一个无界解和三个正解的充分条件。最后给出了两个例子作为所获结果的应用。 By using the Leray-Schauder nonlinear alternative theorem and the Leggett-Williams fixed point theorem, a class of boundary value problem for fractional differential equations with integral conditions on an infinite interval is investigated. Some sufficient conditions on the existence of at least one unbounded solution and three positive solutions are established. At last, two examples are given to illustrate the results.