Growth Rates of Algebras, II: Wiegold Dichotomy

preprint2014arXivOpen access

Abstract

We investigate the function dA(n)d_\mathbf{A}(n), which gives the size of a least size generating set for An\mathbf{A}^n, in the case where A\mathbf{A} has a cube term. We show that if A\mathbf{A} has a kk-cube term and Ak\mathbf{A}^k is finitely generated, then dA(n)∈O(log⁡(n))d_\mathbf{A}(n) \in O(\log(n)) if A\mathbf{A} is perfect and dA(n)∈O(n)d_\mathbf{A}(n) \in O(n) if A\mathbf{A} is imperfect. When A\mathbf{A} is finite, then one may replace "Big Oh" with "Big Theta" in these estimates.

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