By using the coincidence degree theory due to Mawhin and constructing suitable operators, we study the existence of solutions for boundary value problems of fractional differential equations with integral conditions at resonance.%利用Mawhin的连续性定理及迭合度理论,讨论了一类分数阶非线性微分方程带积分共振边界条件解的存在性,得到了解存在的充分条件.
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