We study the strongly connected components of the flow graph associated to a veering
triangulation, and show that the infinitesimal components must be of a certain form, which …

We discuss a number of open problems about mapping class groups of surfaces. In
particular, we discuss problems related to linearity, congruence subgroups, cohomology …

Thanks to a recent result by Jean-Marc Schlenker, we establish an explicit linear inequality
between the normalized entropies of pseudo-Anosov automorphisms and the hyperbolic …

We show that every atoroidal endperiodic map of an infinite-type surface can be obtained
from a depth one foliation in a fibered hyperbolic 3-manifold, reversing a well-known …

This paper gives a sharp lower bound on the spectral radius of a reciprocal Perron–
Frobenius matrix, and shows in particular that. This bound supports conjectures on the …

We study the connections between subsurface projections in curve and arc complexes in
fibered 3-manifolds and Agol's veering triangulation. The main theme is that large-distance …

Given a free-by-cyclic group G= FN⋊ φ ℤ determined by any outer automorphism φ∈ Out
(FN) which is represented by an expanding irreducible train-track map f, we construct a K (G …

A recent preprint of S. Kojima and G. McShane [KM] observes a beautiful explicit connection
between Teichm\" uller translation distance and hyperbolic volume. It relies on a key …

We denote by δg (resp. δ+ g), the minimal dilatation for pseudo-Anosovs (resp. pseudo-
Anosovs with orientable invariant foliations) on a closed surface of genus g. This paper …

We provide a simple criterion for an element of the mapping class group of a closed surface
to have normal closure equal to the whole mapping class group. We apply this to show that …