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math.FA2020
Index of continuous semi-Fredholm families, regularities and semiregularities
Mohammed Berkani
In this paper, we define and index for continuous families of semi-Fredholm bounded liner operators. Moreover, we study various regularities and semiregularities of continuous fami…
math.SP2020
Index of continuous families of bounded linear operators in Banach spaces and application
Mohammed Berkani
In this paper, we define an analytical index for continuous families of Fredholm operators parameterized by a topological space into a Banach space We also consid…