2 papers
math.GT2016
Sphere systems, standard form, and cores of products of trees
Francesca Iezzi
We introduce the concept of a standard form for two embedded maximal sphere systems in the doubled handlebody, and we prove an existence and uniqueness result. In particular, we sh…
math.GT2015
Projections of the sphere graph to the arc graph of a surface
Brian H. Bowditch, Francesca Iezzi
Let S be a compact surface, and M be the double of a handlebody. Given a homotopy class of maps from S to M inducing an isomorphism of fundamental groups, we describe a canonical u…