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THE INSTABILITY OF A CLASS OF UNBOUNDED NON-SEMI-FREDHOLM TYPE OPERATORS UNDER COMPACT PERTURBATIONS - MaRDI portal

THE INSTABILITY OF A CLASS OF UNBOUNDED NON-SEMI-FREDHOLM TYPE OPERATORS UNDER COMPACT PERTURBATIONS (Q3196852)

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THE INSTABILITY OF A CLASS OF UNBOUNDED NON-SEMI-FREDHOLM TYPE OPERATORS UNDER COMPACT PERTURBATIONS
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    THE INSTABILITY OF A CLASS OF UNBOUNDED NON-SEMI-FREDHOLM TYPE OPERATORS UNDER COMPACT PERTURBATIONS (English)
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    1990
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    relatively open operators
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    stability of bounded non-semi-Fredholm operators under compact perturbations
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    closed operators between operator ranges
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    unbounded linear operators between normed linear spaces
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    normally solvable
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    non-semi-Fredholm type operators in terms of certain disjoint subsets of the non-normally solvable type operators
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