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19932016
most citedAutomatic structures, rational growth and geometrically finite hyperbolic groups

75 citations · 85 across the 12 of their papers we have counts for

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Showing 1993Show all

3 papers · 1 filter

math.GR1993

Automatic structures and boundaries for graphs of groups

Walter D. Neumann, Michael Shapiro

We study the synchronous and asynchronous automatic structures on the fundamental group of a graph of groups in which each edge group is finite. Up to a natural equivalence relatio…

math.GR1993

A note on Context Sensitive languages and Word Problems

Michael Shapiro

Anisimov and Seifert show that a group has a regular word problem ifand only if it is finite. Muller and Schupp (together with Dunwoody's accessibility result) show that a group ha…

math.GR1993

Almost Convex Groups and the Eight Geometries

Michael Shapiro, Melany Stein

If is a closed Nil geometry 3-manifold then is almost convex with respect to a fairly simple ``geometric'' generating set. If is a central extension or a ${\Bbb Z}…