Vol. 64, No. 1, 1976

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Joint essential spectra

Artatrana Dash

Vol. 64 (1976), No. 1, 119–128
Abstract

There are many pretty and significant results concerning the essential spectrum of a single operator. The purpose of this note is to introduce the concept of essential spectrum for a sequence of operators and prove analogous results.

Mathematical Subject Classification 2000
Primary: 47A10
Milestones
Received: 8 September 1975
Revised: 24 February 1976
Published: 1 May 1976
Authors
Artatrana Dash