On Concave Operators

Authors
Liang, Zhang Dong Wang, Wen Xia Li, Sheng Jia
Citation
Liang, Zhang Dong et al., On Concave Operators, Acta mathematica Sinica. English series (Print) , 22(2), 2006, pp. 577-582
Journal title
Acta mathematica Sinica. English series (Print) → ACNP
ISSN journal
14398516
Volume
22
Issue
2
Year of publication
2006
Pages
577 - 582
Database
ACNP
SICI code
Abstract
We prove that a u0.concave operator can include other concave operators, and derive a sufficient and necessary condition for the existence and uniqueness of the fixed point of a kind of u0.concave operator under a weaker condition.