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Let $R$ be a finite ring, and $f$ be a function from $R$ to $R.$

Suppose I want to know whether $f$ can be represented as a polynomial or not? Are there any good algorithms for finding this out?

  • 0
    Is $f$ [total or partial](http://en.wikipedia.org/wiki/Partial_function) not?2012-04-01
  • 0
    $f$ is a total function.2012-04-01

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