乘积空间中凹泛函型锥拉伸与压缩不动点定理

张国伟，张秀萍

Fixed Point Theorems of Cone Expansion and Compression of Concave Functional Type in Product Space

ZHANG Guo-wei， ZHANG Xiu-ping

东北大学学报:自然科学版 . 2015, (2): 301 -304 . DOI: 10.12068/j.issn.1005-3026.2015.02.032