Independence of the spectrum of an elliptic operator with random coefficients (Q796757)

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scientific article; zbMATH DE number 3865866
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Independence of the spectrum of an elliptic operator with random coefficients
scientific article; zbMATH DE number 3865866

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    Independence of the spectrum of an elliptic operator with random coefficients (English)
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    1983
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    The results of this paper are the following: An isometric mapping of two representations of a \(C^*\)-algebra of the coefficients of operators with random coefficients. An interpretation of pseudodifferential operators with random coefficients as pseudodifferential operators with a symbol having values in a \(C^*\)-algebra. As a consequence, denoting by \(A_{\omega}=\sigma(\omega,x,\partial /\partial x)\) an elliptic random pseudodifferential operator, and by A the operator defined by \(Au(\omega,x)=[A_{\omega}u(\omega, )](x)\) the spectra of these two operators (A and \(A_{\omega})\) coincide for almost every \(\omega \in \Omega\).
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    ergodic case
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    pseudodifferential operators
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    random coefficients
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    symbol
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