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arXiv · 1311.6358

Reversing Palindromic Enumeration in Rank Two Free Groups

Andrew E. Silverio
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Abstract

The Gilman-Maskit algorithm for determining the discreteness or non-discreteness of a two-generator subgroup of $\mathrm{PSL}_2\mathbb{R}$ terminates with a pair of generators that are Farey words. The Farey words are primitive words that are indexed by rational numbers and infinity. The E-words, primitive words with palindromic product forms, are also indexed by rational numbers and infinity. We show a modification of the Gilman-Maskit algorithm so that the stopping generators are E-words.

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Andrew E. Silverio. 2013-11-25. Reversing Palindromic Enumeration in Rank Two Free Groups. https://arxiv.org/abs/1311.6358

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