The inverse of an automorphism in polynomial time

  • Dickerson M
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Abstract

In this paper we present a polynomial time algorithm for computing the inverse of an automorphism over a polynomial ring K[x]. The algorithm works over any commutative ring K, and in the case when K is a field, provides an exponential time solution to the problem of determining when an endomorphism is invertible. © 1991, Academic Press Limited. All rights reserved.

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Authors

  • Matthew Dickerson

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