Event time:
Thursday, October 4, 2012 - 12:30pm to 1:30pm
Location:
431 DL
Speaker:
Yoav Len
Speaker affiliation:
Yale
Event description:
The Brill-Noether rank of a tropical curve is an invariant analogous to the dimension of the Brill-Noether locus of an algebraic curve. We will discuss the divisor theory of tropical curves and construct their moduli space. We will then show that the function taking a tropical curve to its Brill-Noether rank is upper semicontinuous on this space.