A simple proof of the mountain circle theorem (Q1432992)
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scientific article; zbMATH DE number 2075241
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A simple proof of the mountain circle theorem |
scientific article; zbMATH DE number 2075241 |
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A simple proof of the mountain circle theorem (English)
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15 June 2004
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The author proposes a simple proof of the Fournier-Willem mountain circle theorem. She still uses the Ljusternik-Schnirelman-type theory introduced by Fournier and Willem but, instead of cohomology, she uses Brouwer degree theory.
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Ljusternik-Schnirelman category
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Fournier-Willem relative category
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Brouwer degree
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