Hershel Farkas Hebrew University of Jerusalem Theta functions - conformal mapping through combinatorial number theory Friday 2nd April, 12:05-12:55pm, Carslaw 373. In this talk I shall show the diversity of the theta functions by discussing some problems which can be solved using them. The problems range from classical problems in conformal mapping through problems in number theory such as partitions and representations of positive integers as sums of squares and triangular numbers. No previous knowledge will be assumed.