##Spring 2009 Schedule## This semester, we will cover a motely collection of topics with no obvios relation between them. {:r: scope="row"} Date|Speaker|Topic| ---:|:------|:---- {:r}1/28 |Jacob Lurie|Discussion with Lurie about ETQFT and the Cobordism Hypothesis {:r}2/4 |Distler|Recursion relations for scattering amplitudes in gauge theory and gravity {:r}2/11 |Jaume Gomis|M2 branes {:r}2/18 |David Ben-Zvi|Factorization and OPE {:r}2/25 |Eric Sharpe| Non-birational twisted derived equivalences and Gauged Linear σ-models {:r}3/4 |Sean Keel|K3 surfaces and torus fibrations (part I) {:r}3/11 |Sean Keel|K3 surfaces and torus fibrations (part II) {:r}3/25 |Anindya Dey|Modular Differential Equations and Null Vectors (part I) {:r}4/1 |Xi Yin | Partition Functions for 3D Gravity {:r}4/8 |Graeme Segal| ? {:r}4/15 |Graeme Segal| ? {:r}4/22 |Anindya Dey | Modular Differential Equations and Null Vectors (Part II) {:r}4/29 | ? | ? {:r}5/6 | ? | ? {: class="plaintable" style="text-align:center;" summary="Spring Schedule"} ###References### ####Chiral or Factorization Algebras#### * Frenkel and Ben-Zvi, Vertex Algebras and Algebraic Curves (2nd edition) * Gaitsgory, Notes on Factorizable Sheaves * Lurie, On the classification of topological field theories * Beilinson and Drinfeld, Chiral Algebras ###2d CFTs and 2+1 AdS gravity### Aswin's talk (moved to theory brown bag on Mar 12) : ####Modular Differential Equations and Null Vectors#### * Reconstruction of conformal field theories from modular geometry on the torus, Mathur et al, Nucl. Phys. B 318(1989) 483 * Vertex operator algebra,elliptic functions and modular forms, Y.Zhu,J. Amer. Math. Soc. 9(1996) 237 * Constraints on extremal self-dual CFTS, M.R. Gaberdiel, arxiv:0707.4073[hep-th] * Modular differential equations and null vectors, Gaberdiel et al, arxiv: 0804.0489[hep-th]