Unfortunately, this talk has to be cancelled. Sorry for any inconvenience. ------------------------------------------------------------------ Speaker: Tom Steinle (Ulm) Time: Thursday, Oct. 10, 12NOON--1PM Room: Carslaw 707A Lunch: after the talk, at Law Annex Cafe. ---------------------------------------------- Title: Hurwitz Monodromy Abstract: families of branched covers of the Riemann sphere with fixed ramification type may be described via Hurwitz spaces. In this talk, we will consider the case where the Hurwitz space is a Riemann surface and may be viewed as a branched cover of the Riemann sphere. We will review how one can calculate the monodromy of this cover (Huritz monodromy) in terms of Nielsen tuples by explicit formulas. Moreover, in certain cases, it is possible to calculate the Hurwitz monodromy of quotients of covers via the Nielsen tuples of the original ones. ---------------------------------------------- Seminar website: http://www.maths.usyd.edu.au/u/SemConf/Geometry/