When are weak permutation polynomials strong? (Q1904529)
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scientific article; zbMATH DE number 828732
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | When are weak permutation polynomials strong? |
scientific article; zbMATH DE number 828732 |
Statements
When are weak permutation polynomials strong? (English)
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19 June 1996
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The author proves that, for a commutative ring \(R\) with identity, weak permutation polynomials in several indeterminates over \(R\) coincide with strong permutation polynomials over \(R\) if and only if \(R\) is a direct sum of fields.
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finite field
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weak permutation polynomials
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strong permutation polynomials
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