## Fall Semester 2012

- August 30
- Boris Goldfarb
- What is Applied Topology? The Case of Persistent Homology
- September 6
- Courtney Thatcher (Bard College at Simon’s Rock)
- Applied Topology: The Mapper Algorithm
- September 13
- Ben Salisbury (The City College of New York)
- Crystals of Tableaux and t-Deformation of Characters
- September 20
- Andrew Linshaw (Brandeis University)
- Invariant Subalgebras of Vertex Algebras
- September 27
- Conchita Martinez (Universidad de Zaragoza, Spain; CUNY)
- Centralizers of Finite Subgroups in Thompson-Like Groups
- October 4
- Marco Varisco
- On Thompson’s Group
*T*and Applications to Algebraic K-Theory - October 11
- Fernando Guzman (Binghamton University, SUNY)
- Natural Duality for the Algebra of Conditional Logic
- October 18
- Bill Dunbar (Bard College at Simon’s Rock)
- Diameters of Sphere Quotients: Introduction
- October 25
- Bill Dunbar (Bard College at Simon’s Rock)
- Diameters of 3-Sphere Quotients
- November 1
- Alex Tchernev
- Betti Degrees Posets of Monomial Ideals
- November 8
- Andrew Marshall (Cornell University)
- Space of Tetrahedral Graphs in R
^{3} - November 15
- Jennifer Taback (Bowdoin College)
- The Geometry of Twisted Conjugacy Classes in Diestel-Leader Groups
- November 22
- no classes
- November 29
- Hara Charalambous (Aristotle University of Thessaloniki, Greece)
- Markov Bases of Lattice Ideals
- December 6
- John Peter (Utica College)
- Stabilization and Classification of Embedded Thickenings