Exploring the (massive) space of graph partitions
CMSA 20 Garden Street, Cambridge, MA, United StatesSpeaker: Moon Duchin (Tufts) Title: Exploring the (massive) space of graph partitions Abstract: The problem of electoral redistricting can be set up as a search of the space of partitions of a graph (representing the units of a state or other jurisdiction) subject to constraints (state and federal rules about the properties of districts). I'll survey the problem and some […]
Hodge and Noether-Lefschetz Loci Seminar
In the Fall 2018 Semester the CMSA will be hosting a seminar on Hodge and Noether-Lefschetz loci, with lectures given by Hossein Movasati (IMPA). The seminar will occur weekly on Wednesday at 1:30 in room G10 of the CMSA. The schedule below will be updated as talks are confirmed. Date Title/Abstract 11/7/2018 Video Title: Hodge and Noether-Lefschetz loci Abstract: Hodge cycles are […]
The virtual fundamental class in symplectic geometry
CMSA 20 Garden Street, Cambridge, MA, United StatesSpeaker: Dusa McDuff (Columbia University) Title: The virtual fundamental class in symplectic geometry Abstract: Essential to many constructions and applications of symplectic geometry is the ability to count J-holomorphic curves. The moduli spaces of such curves have well understood compactifications, and if cut out transversally are oriented manifolds of dimension equal to the index of the problem, so […]