On the Bethe-Sommerfeld conjecture for higher-order elliptic operators (Q1396484)
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scientific article; zbMATH DE number 1945192
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the Bethe-Sommerfeld conjecture for higher-order elliptic operators |
scientific article; zbMATH DE number 1945192 |
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On the Bethe-Sommerfeld conjecture for higher-order elliptic operators (English)
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2 July 2003
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constant coefficient elliptic pseudo-differential operator
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number of gaps in spectrum
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