Results 51 to 60 of about 2,232,899 (337)
Compact $AC(\sigma)$ operators
, 2008 All compact $AC(\sigma)$ operators have a representation analogous to that for compact normal operators. As a partial converse we obtain conditions which allow one to construct a large number of such operators. Using the results in the paper, we answer a
Ashton, Brenden, Doust, Ian
core +1 more source
Nonlinear eigenvalue approximation for compact operators [PDF]
, 2014 In the work of Osborn [Math. Comput. 29, 712–725 (1975)], a general spectral approximation theory was developed for compact operators on a Banach space which does not require that the operators be self-adjoint and also provides a first order correction ...
Shari Moskow
semanticscholar +1 more source
Journal of Applied Mathematics, 2013 Some results on fixed points related to the contractive compositions of bounded operators in a class of complete metric spaces which can be also considered as Banach’s spaces are discussed through the paper.
M. De la Sen
doaj +1 more source
Fuzzy Convergence Sequence and Fuzzy Compact Operators on Standard Fuzzy Normed Spaces
مجلة بغداد للعلوم, 2021 The main purpose of this work is to introduce some types of fuzzy convergence sequences of operators defined on a standard fuzzy normed space (SFN-spaces) and investigate some properties and relationships between these concepts.
Raghad I. Sabri
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Equivalence after extension for compact operators on Banach spaces
, 2015 In recent years the coincidence of the operator relations equivalence after extension and Schur coupling was settled for the Hilbert space case, by showing that equivalence after extension implies equivalence after one-sided extension.
Messerschmidt, Miek +2 more
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Compact differences of weighted composition operators on the weighted Bergman spaces
Journal of Inequalities and Applications, 2017 In this paper, we consider the compact differences of weighted composition operators on the standard weighted Bergman spaces. Some necessary and sufficient conditions for the differences of weighted composition operators to be compact are given, which ...
Maocai Wang, Xingxing Yao, Fen Chen
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AIMS Mathematics, 2022 In this paper, the compact intertwining relations of integral-type operators and composition operators between the Bloch-type spaces are investigated.
Hang Zhou
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Geometric spectral theory for compact operators [PDF]
, 2013 For an n-tuple A = (A1,··· ,An) of compact operators we define the joint point spectrum of A to be the set p(A) = {(z1,··· ,zn) ∈ C n : ker(I + z1A1 + ··· + znAn) 6 (0)}.
Isaak Chagouel, M. Stessin, Kehe Zhu
semanticscholar +1 more source
Mechanisms of parasite‐mediated disruption of brain vessels
FEBS Letters, EarlyView.Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira +3 more
wiley +1 more source
The ideal of Lipschitz classical p-compact operators and its injective hull
Moroccan Journal of Pure and Applied Analysis, 2022 We introduce and investigate the injective hull of the strongly Lipschitz classical p-compact operator ideal defined between a pointed metric space and a Banach space.
Tiaiba Toufik, Achour Dahmane
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