A note on range-kernel uncomplementation

Demonstratio mathematica

article

Carlos Kubrusly¹  Bhagwati Prashad Duggal² 

[1] Catholic University of Rio de Janeiro;United Kingdom of Great Britain and Northern Ireland

关键词: Banach-space operators;    complementation;    closed range;    Fredholm operators;   

DOI  :  10.1515/dema-2017-0027

学科分类：外科医学

来源: De Gruyter

【 摘 要 】

This note exhibits a Banach-space operator such that neither the range nor the kernel is complemented both for the operator and its adjoint.

【 授权许可】

CC BY