... of Aeronautics and Astronautics,Nanjing 210016, People’s Republic of ChinaFull list of author information isavailable at the end of the articleAbstractIn this paper, the existence and multiplicity ... that(i) {x Î P (a, a,b): a (x)> ;a} ≠ ∅ and a (Ax)> ;a for x Î P (a, a,b);(ii) ||Ax|| <d for ||x|| ≤ d;(iii) a( Ax)> ;a for x Î P (a, a,c) with ||Ax|| >b.Then, A has at least three fixed ... solutions for a nonlocal differential equationYunhai Wang1*, Fanglei Wang2,3 and Yukun An3* Correspondence: yantaicity@163.com1College of Aeronautics and Astronautics, Nanjing University of Aeronautics...