G2 Manifolds Seminar: Spiro Karigiannis

Title:Fundamentals of exceptional holonomy, I Speaker:  Spiro Karigiannis Date: Tuesady, August 19, 2014 Time: 09:30am-10:30am Place: Seminar Room 313, Simons Center     [box, type=”download”]Watch the video.[/box] Abstract: This is part one of an introduction to the geometry of $\mathrm{G}_2$ and $\mathrm{Spin}(7)$ structures, henceforth called “exceptional structures”. We will begin with a very brief review of Berger’s list of … Read more

Moduli Spaces Program Seminar: Daniel Christofaro-Gardiner

Title: Symplectic embeddings of concave toric domains into convex toric domains Speaker:  Daniel Christofaro-Gardiner Date: Thursday, June 19, 2014 Time: 2:00pm-3:30pm Place: Seminar Room 313, Simons Center     [box, type=”download”]Watch the video.[/box]

Moduli Spaces Program Seminar: Frederic Bourgeois, Université Paris-Sud

Title: Two approaches to S^1-equivariant symplectic homology Speaker:  Frederic Bourgeois, Université Paris-Sud Date: Wednesday, June 18, 2014 Time: 11:15am-12:45pm Place: Seminar Room 313, Simons Center     [box, type=”download”]Watch the video.[/box]

Moduli Spaces Program Seminar: Michael Hutchings, UC Berkeley

Title: Obstruction bundle gluing in cylindrical contact homology Speaker:  Michael Hutchings, UC Berkeley Date: Monday, June 16, 2014 Time: 2:00pm-3:30pm Place: Seminar Room 313, Simons Center     [box, type=”download”]Watch the video.[/box]

Moduli Spaces Program Seminar: Frederic Bourgeois, Université Paris-Sud

Title: Applications and computations of contact homology revisited Speaker:  Frederic Bourgeois, Université Paris-Sud Date: Monday, June 16, 2014 Time: 11:15am-12:15pm Place: Seminar Room 313, Simons Center     [box, type=”download”]Watch the video.[/box]

Seminar by Ryo Suzuki, Oxford

Title: Exact open tachyon spectrum in AdS/CFT Speaker:  Ryo Suzuki, Oxford Date: Thursday, June 12, 2014 Time: 2:00pm-3:00pm Place: Seminar Room 313, Simons Center     [box, type=”download”]Watch the video.[/box] Abstract: In order to understand unstable string states in curved spacetime, we consider potentially tachyonic open string states in AdS_5xS^5 which should correspond to a determinant-like operator in N=4 super … Read more

Moduli Spaces Program Seminar: Sheel Ganatra, Stanford

Title: Cyclic homology and S^1-equivariant symplectic cohomology Speaker:  Sheel Ganatra, Stanford Date: Tuesday, June 10, 2014 Time: 2:30pm-3:30pm Place: Seminar Room 313, Simons Center     [box, type=”download”]Watch the video.[/box] Abstract: In this talk, we study two natural circle actions in Floer theory, one on symplectic cohomology and one on the Hochschild homology of the Fukaya category. We show that … Read more

Quantum Anomalies Program Seminar: Ariel Zhitnitsky

Title: Maxwell Electrodynamics on 4 torus as a topologically ordered system Speaker:  Ariel Zhitnitsky Date: Monday, June 9, 2014 Time: 4:00pm-5:30pm Place: Seminar Room 313, Simons Center   [box, type=”download”]Watch the video.[/box] Abstract:I discuss a novel contribution to the Casimir vacuum energy which can not be expressed in terms of conventional propagating degrees of freedom. Instead, it is formulated in … Read more