Permutations generated by a stack of depth 2 and an infinite stack in series. Elder, Murray — 2006 The Electronic Journal of Combinatorics [electronic only]
L δ groups are almost convex and have a sub-cubic Dehn function. Elder, Murray — 2004 Algebraic & Geometric Topology
Regular geodesic languages and the falsification by fellow traveler property. Elder, Murray — 2005 Algebraic & Geometric Topology
Curvature testing in 3-dimensional metric polyhedral complexes. Elder, Murray; McCammond, Jon — 2002 Experimental Mathematics