Classification of second-order partial differential equation systems elliptic in the Petrovskij sense (Q1280856)
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scientific article; zbMATH DE number 1262933
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Classification of second-order partial differential equation systems elliptic in the Petrovskij sense |
scientific article; zbMATH DE number 1262933 |
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Classification of second-order partial differential equation systems elliptic in the Petrovskij sense (English)
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5 August 1999
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We consider a system of equations elliptic in the Petrovskij sense having \(m\) second-order equations with constant coefficients with \(m\) unknown functions in the space of \(n\) independent variables \(L(U)= 0\), \(U= (u_1,\dots, u_m)\), where the operator \(L\) is an \(m\times m\) matrix consisting of second-order differential operators with constant coefficients.
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ellipticity index
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