A note on range-kernel uncomplementation

Kubrusly, C; Duggal, BP

Kubrusly, C (reprint author), Pontificia Univ Catolica Rio de Janeiro, BR-22453900 Rio De Janeiro, RJ, Brazil.

DEMONSTRATIO MATHEMATICA, 2017; 50 (1): 252

Abstract

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

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