Gap Between Operator Norm and Spectral Radius for the Square of Antidiagonal Block Operator Matrices

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Communications in Advanced Mathematical Sciences
Volume:5 Issue:1
Gap Between Operator Norm and Spectral Radius for the Square of Antidiagonal Block Operator Matrices

Gap Between Operator Norm and Spectral Radius for the Square of Antidiagonal Block Operator Matrices

Authors : Elif OTKUN ÇEVİK

Pages : 1-7

Doi:10.33434/cams.1022686

View : 31 | Download : 10

Publication Date : 2022-03-17

Article Type : Research Paper

Abstract :In this work, the gap between operator norm and spectral radius for the square of antidiagonal block operator matrices in the direct sum of Banach spaces has been investigated, and also the gap between operator norm and numerical radius for the square of same matrices in the direct sum of Hilbert spaces has been studied.
Keywords : Antidiagonal operator matrix, Numerical radius, Operator norm, Spectral radius

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