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On λ-commuting and left (right) pseudospectrum and left (right) condition pseudospectrum of continuous linear operators on ultrametric Banach spaces

Russian Universities Reports. Mathematics
continuous linear operators on ultrametric Banach spaces and we introduce and study the operator equations ASB=S and AS=SB. We give some properties of these operator equations. Some illustrative examples are provided. On the other hand, we introduce and study the left (right) pseudospectrum and the left (right) condition pseudospectrum of continuous ...
J. Ettayb
openaire   +3 more sources

Hyperstability of the Jensen functional equation in ultrametric spaces

Aequationes Mathematicae, 2017
Abdellatif Chahbi   +2 more
exaly   +3 more sources

Approximation and stability of common fixed points of Prešić type mappings in ultrametric spaces

Journal of Fixed Point Theory and Applications, 2018
Ramesh Kumar D   +2 more
exaly   +3 more sources

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