scientific article; zbMATH DE number 3234909

zbMath0145.39105MaRDI QIDQ5522623

Schechter, Martin

Publication date: 1967

Full work available at URL: http://www.numdam.org/item?id=ASNSP_1967_3_21_2_261_0

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zbMATH Keywords

functional analysis

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Cites Work

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• Properties of linear transformations preserved under addition of a completely continuous transformation
• On the essential spectrum of partial differential boundary problems
• The basic propositions on defect numbers, root numbers and indices of linear operators
• On the stability of the index of unbounded linear transformations
• On the Essential Spectra of Singular Eigenvalue Problems

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