Speaker: Prof. Alexandru Dimca (Nice) http://math.unice.fr/~dimca/ Time: Friday, April 13, 2--3PM Room: OMB-145 (UNSW) Joint Colloquium web site: http://www.maths.usyd.edu.au/u/SemConf/JointColloquium/index.html ----------------------------------------------- Title: On the Monodromy of Hyperplane Arrangements Abstract: we will discuss the main open question in this area, namely whether the combinatorics of the intersection lattice determines the monodromy operator of the Milnor fiber of a central, complex hyperplane arrangement. Some results will be stated in a way showing that both answers seem at this stage equally possible. ----------------------------------------------- Lunch with speaker: we meet at 12:30PM at the entrance to the East Wing of Red Centre Building. One choice of commuting from Sydney: meet at Carslaw 620 around 12NOON and we share taxi to UNSW. The round trip is covered by department colloquium fund.