No label defined (Q4391789)
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scientific article; zbMATH DE number 1159378
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | No label defined |
scientific article; zbMATH DE number 1159378 |
Statements
7 June 1998
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upper and lower solutions method
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Leray-Schauder fixed point theorem
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smooth solution
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