Banach空间锥相关论文
This paper discusses the problem of positive periodic solutions for a class of nonlinearsecond order ordinary differenti......
锥拉伸与锥压缩不动点定理(见[1] 、[2] )是不动点理论的重要结论之一。由于它的重要性,近年来有不少文章对它进行了讨论(见[3]、[......