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Counting equivalence classes of irreducible representations

Edward S. Letzter
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Abstract

Let $n$ be a positive integer, and let $R$ be a (possibly infinite dimensional) finitely presented algebra over a computable field of characteristic zero. We describe an algorithm for deciding (in principle) whether $R$ has at most finitely many equivalence classes of $n$-dimensional irreducible representations. When $R$ does have only finitely many such equivalence classes, they can be effectively counted (assuming that $k[x]$ posesses a factoring algorithm).

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Edward S. Letzter. 2001-06-05. Counting equivalence classes of irreducible representations. https://arxiv.org/abs/math/0106033

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