70 citations · 480 across the 69 of their papers we have counts for
4 papers · 1 filter
Stable commutator length in word-hyperbolic groups
Danny Calegari, Koji Fujiwara
In this paper we obtain uniform positive lower bounds on stable commutator length in word-hyperbolic groups and certain groups acting on hyperbolic spaces (namely the mapping class…
Denominator bounds in Thompson-like groups and flows
Danny Calegari
Let T denote Thompson's group of piecewise 2-adic linear homeomorphisms of the circle. Ghys and Sergiescu showed that the rotation number of every element of T is rational, but the…
Stable commutator length in subgroups of PL(I)
Danny Calegari
Let G be a subgroup of PL(I). Then the stable commutator length of every element of [G,G] is zero.
Length and stable length
Danny Calegari
This paper establishes the existence of a gap for the stable length spectrum on a hyperbolic manifold. If M is a hyperbolic n-manifold, for every positive e there is a positive d d…