## Spring Semester 2015

- January 22
- Hank Kurland
- Homology Relations Between Local Unstable Manifolds Characterizing Saddle-Connection Bifurcations — Part 1
- January 29
- Hank Kurland
- Homology Relations Between Local Unstable Manifolds Characterizing Saddle-Connection Bifurcations — Part 2
- February 5
- Olgur Celikbas (University of Connecticut)
- Syzygies and Tensor Product of Modules
- February 12
- Ela Celikbas (University of Connecticut)
- Decomposing Gorenstein Rings as Connected Sums
- February 19
- Marco Varisco
- What Is… The Farrell-Jones Conjecture?
- February 26
- no seminar (colloquium)
- March 5
- An Huang (Harvard University)
- Period Integrals and Their Differential Systems
- March 12
- Oana Veliche (Northeastern University)
- Intersections and Sums of Gorenstein Ideals
- March 19
- no classes
- March 26
- no seminar
- April 2
- David Vella (Skidmore College)
- Nilpotent Orbits for Borel Subgroups of Simple Algebraic Groups of Small Rank
- April 9
- Timothy Clark (Loyola University Maryland)
- Combinatorial Deformations of Monomial Ideals
- April 16
- Matt Brin (Binghamton University, SUNY)
- Elementary But Complex Groups of PL Homeomorphisms of the Unit Interval
- April 23
- Stefan Witzel (Bielefeld University, Germany)
- The Sigma-invariants of Thompson group F
- April 30
- Susan Niefield (Union College)
- Exactness and Projectivity