Logic in Southern California

Southern California Number Theory Day
See http://math.uci.edu/~krubin/scntd for more details

The talk will be in the general area of birational geometry. Can we find singular representatives of birational equivalence classes of algebraic varieties, with the simplest possible singularities? In particular, can we find the smallest class of singularities that necessarily persist after birational mappings that preserve smooth points and transverse self-intersections of the target spaces? Many of the questions considered were raised by Janos Kollar.