Abstract:Last time, we reviewed the topologically twisted indices from the holonomy matrix method for 3-manifolds constructed by Dehn surgery of knot/link complements. This time, we are going to review the other method using the ideal triangulation based on Dimofte-Gaiotto-Gukov and Dimofte-Garoufalidis.Specifically, we'll review combinatorial data of ideal triangulation of 3-manifolds with n-...
AbstractAn infinite group G is said to have property Ro if every automorphism p e Aut(G) hasR(yp)= co where R(y) denotes the cardinality of the set of orbits of the (left) action of G on G viao. a +> aap(o)-1. The study of (in)finiteness of R(yp) has its origin in Nielsen fixed point theory.In this talk, l will give an overview of existing results on property Ro together with some openquestions