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arXiv · 1511.07627

Deciding if a variety forms an algebraic group

John Abbott·Bettina Eick
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Abstract

Let $n$ be a positive integer and let $f_1, \ldots, f_r$ be polynomials in $n^2$ indeterminates over an algebraically closed field $K$. We describe an algorithm to decide if the invertible matrices contained in the variety of $f_1, \ldots, f_r$ form a subgroup of $GL(n,K)$; that is, we show how to decide if the polynomials $f_1, \ldots, f_r$ define a linear algebraic group.

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John Abbott, Bettina Eick. 2015-11-24. Deciding if a variety forms an algebraic group. https://arxiv.org/abs/1511.07627

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