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On the Fredholm and Weyl spectrum of several commuting operators

R. Levy
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Abstract

In the paper one considers the local structure of the Fredholm joint spectrum of commuting $n$-tuples of operators. A connection between the spatial characteristics of operators and the algebraic invariant of the corresponding coherent sheaves is investigated. A notion of Weyl joint spectrum of commuting $n$-tuple is introduced.

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R. Levy. 2005-09-08. On the Fredholm and Weyl spectrum of several commuting operators. https://arxiv.org/abs/math/0509184

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