Is quasi-concavity preserved by heat flow? (Q948903)
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scientific article; zbMATH DE number 5351797
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Is quasi-concavity preserved by heat flow? |
scientific article; zbMATH DE number 5351797 |
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Is quasi-concavity preserved by heat flow? (English)
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16 October 2008
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In this very nice paper the authors investigate the question if a quasi-concave initial datum remains quasi-concave at later times, i.e. if its spatial level sets continue to be convex. They give a simple counterexample in 2 dimensions and survey related results.
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level sets
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convexity
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counterexample
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