SCGP Weekly Talks is a colloquium style series of talks aimed at all members and visitors of the Simons Center and the more general math and physics community on Stony Brook campus. The regular time and place for the talks are Tuesday, 1pm. During the workshops at the Center the talks are usually given by organizers or distinguished participants of the corresponding workshop on related topics. All SCGP Weekly Talks are recorded and can be accessed through the SCGP video portal. http://scgp.stonybrook.edu/video_portal/results.php?event_id=131

**Weekly talks are held regularly on Tuesdays at 1:00 pm in SCGP Rm 102 unless otherwise noted.**

Date | Speaker | Title |

Sept. 19 | Mohammad Tehrani | On the compactification problem for (certain) moduli spaces of J-holomorphic maps |

Sept. 26 | Nikita Nekrasov | On the origin of Chern-Simons terms |

Oct. 3 | Paul Fendley | Preserving Quantum Coherence |

Oct. 10 | Uriel Frisch | Differential geometry and Fluid dynamics: more than two centuries of interaction |

Oct. 17 at 4:15pm in Room 103 | Giuseppe Mussardo | Yang-Lee Zeros of the Yang-Lee Model |

Oct. 24 at 2:00pm | Tobias Colding | Optimal regularity for geometric flows |

Oct. 31 | Olaf Hohm | L-infinity algebra and field theory |

Nov. 7 | No Talk | No Talk |

Nov. 14 | Herman Verlinde | Black Hole Horizons and Many Body Quantum Chaos |

Nov. 28 | Dan Harlow | TBA |

Dec. 5 | Alexander Turbiner | TBA |

SCGP Weekly Talks is a colloquium style series of talks aimed at all members and visitors of the Simons Center and the more general math and physics community on Stony Brook campus. The regular time and place for the talks are Tuesday, 1pm. During the workshops at the Center the talks are usually given by organizers or distinguished participants of the corresponding workshop on related topics. All SCGP Weekly Talks are recorded and can be accessed through the SCGP video portal. http://scgp.stonybrook.edu/video_portal/results.php?event_id=131

**Weekly talks are held regularly on Tuesdays at 1:00 pm in SCGP Rm 102.**

Date | Speaker | Title |

Sept. 20 | Daniel Persson | From moonshine to automorphic forms and beyond |

Sept. 27 | Nikita Nekrasov | Complex Quoits, or, How to smoothly tie the instantons and anti-instantons |

Oct. 18 | Tom Mrowka | |

Oct. 25 | John Morgan | Spin Manifolds and Spin Bordism |

Nov. 1 | Mukund Rangamani | Holography and Entanglement Decadal Survey |

Nov. 29 | Tadashi Takayanagi | Emergent Spacetime from Quantum Entanglement |

Dec. 6 | TBA | TBA |

Dec. 13 | TBA | TBA |

Dec. 20 | TBA | TBA |

SCGP Weekly Talks is a colloquium style series of talks aimed at all members and visitors of the Simons Center and the more general math and physics community on Stony Brook campus. The regular time and place for the talks are Tuesday, 1pm. During the workshops at the Center the talks are usually given by organizers or distinguished participants of the corresponding workshop on related topics. All SCGP Weekly Talks are recorded and can be accessed through the SCGP video portal. http://scgp.stonybrook.edu/video_portal/results.php?event_id=131

**Weekly talks are held regularly on Tuesdays at 1:00 pm in SCGP Rm 102.**

Date | Speaker | Title |

Jan. 12 | Valerio Toledano Laredo | Quasi-Coxeter algebras, flat connections and quantum groups |

Jan. 26 | Roman Bezrukavnikov | On character sheaves. |

Feb. 2 | Hiraku Nakajima | Instantons on the Taub-NUT space |

Feb. 23 | Bernard Nienhuis | Statistical Physics and Combinatorics, why now? |

Mar. 3 at 2pm | Vasily Pestun | Geometric and algebraic structures in gauge theories |

Mar. 8 | Christian Schnell | Introduction to Hodge theory |

Mar. 15 | Alexei Borodin | The six vertex model and randomly growing interfaces in (1+1) dimensions |

Mar. 22 | Marilena Loverde | Why we are excited about the LIGO results, a cosmologist’s perspective |

Mar. 29 | Philip Griffiths, IAS | Hodge theory and moduli |

Apr. 5 at 4:15pm | Andy Strominger | The Black Hole Information Paradox, Revisited |

Apr. 12 | Nathan Seiberg | Gapped Boundary Phases of Topological Insulators via Weak Coupling |

Apr. 19 | Shinsei Ryu | Bulk/boundary correspondence in (3+1)d topological phases |

Apr. 26 | No talk | |

May 3 | Paul Wiegmann | Precise adiabatic transport and Quillen holomorphic anomaly – Quantum Hall Effect, the case study |

May 10 | Daniel Waldram | Generalised geometry and supersymmetric spacetimes |

May 17 | Martin Hairer | Random loops |

May 24 | Greg Huber, KITP | Terasaki Ramps: A Glimpse into the Geometrical Architecture of the Cell |

Jun. 7 | Hakan Eliasson | Reducibility of quasi-periodic co-cycles–from Schrödinger to infinite dimension |

Jun. 14 | Richard Wentworth | “Higgs bundles, flat connections, and higher Teichmueller theory” |

Jun. 28 | TBA | TBA |

Timing: Spring 2015/Fall 2015

Abstract: Calogero-Moser-Sutherland many-body systems arose originally in the 1970’s simultaneously in Nuclear Physics, Mathematical Physics and Solid State Physics. Since then they were found in some incarnations in diverse branches of physics and mathematics such as the theory of quantum Hall effect, Yang-Mills and Chern-Simons gauge theories in various dimensions with various amounts of supersymmetry, noncommutative geometry, topology of Hilbert schemes, geometric representation theory, Gromov-Witten invariants, theory of symmetric functions, SLE, Random Matrix theory, collective field theory and random geometries.

The aim of the seminar series is to review and explore these connections.

Fall 2015 Lectures:

Date | Title | Speaker | Location |

9/10 | Applied gauge origami | Nikita Nekrasov | Rm 313 |

9/23 | Soliton solutions of a Calogero model in a harmonic potential | Alexander Abanov | Rm 313 |

9/30 | Benjamin-Ono equation and collective behavior of Calogero particles | Alexander Abanov | Rm 313 |

10/7 | CANCELLED: Solving quantum elliptic Calogero-Moser system using classical relativistic CM system (Ruijsenaars-Schneider model) | Nikita Nekrasov | Rm 313 |

10/14 | Comments on Disordered Conformal Field Theories | Z. Komargodski | Rm 313 |

10/23 | Integrability of limit shape equations for the 6-vertex model | Nicolai Reshetikhin | Rm 313 |

10/28 | Heun operator | Alexander Turbiner | Rm 313 |

11/11 | TBD | Fabio Franchini | Rm 313 |

11/18 | 3-body elliptic Calogero model (2D-Lame operator): a solution | Alexander Turbiner | Rm 313 |

11/25 | On the construction of higher quantum integrals of elliptic Calogero-Moser system from gauge theory | Nikita Nekrasov | Rm 313 |

12/2 | The Bannai-ito Algebra and Exactly Solvable Mode | Luc Vinet | Rm 313 |

12/9 | BPZ equation and Riemann-Hilbert correspondence from gauge theory | Nikita Nekrasov | Rm 313 |

12/16 | BPZ equation and Riemann-Hilbert correspondence from gauge theory – Part 2 | Nikita Nekrasov | Rm 313 |

12/23 | |||

Spring 2015 Lectures:

Date and Time | Title | Presenters |

4/15 at 2:30pm – Room 313 | Mathematics and Physics of Calogero Moser-Sutherland systems | Nikita Nekrasov |

4/22 at 2:30pm – Room 313 | Quantum Integrability and Schubert Calculus | Vassily Gorbounov |

4/29 at 2:00pm – Room 313 | From crossed instantons to Calogero-Moser system | Nikita Nekrasov |

*Organized by Alexander Abanov*

SCGP Weekly Talks is a colloquium style series of talks aimed at all members and visitors of the Simons Center and the more general math and physics community on Stony Brook campus. The regular time and place for the talks are Tuesday, 1pm. During the workshops at the Center the talks are usually given by organizers or distinguished participants of the corresponding workshop on related topics. All SCGP Weekly Talks are recorded and can be accessed through the SCGP video portal.

**Weekly talks are held regularly on Tuesdays at 1:00 pm in SCGP Rm 102.**

Date | Speaker | Title |

9/15 | Zhenghan Wang | Realization of TQFTs in Nature and topological quantum computation |

9/22 | Robert Lazarsfeld | An invitation to multiplier ideals |

9/29 | Martin Zirnbauer | Bott periodicity and Kitaev’s periodic table of topological insulators and superconductors |

10/6 | Gabor Szekelyhidi | Extremal metrics on toric manifolds |

10/13 | Zohar Komargodski (Weizmann) | The Space of Quantum Field Theories |

10/20 | Prof. Uriel Frisch | Cauchy’s almost forgotten Lagrangian formulation of the Euler equation for 3D incompressible flow |

10/27 | Yan Fyodorov | A Nonlinear Analogue of May-Wigner Instability Transition |

11/3 | Tomoyuki Hisamoto | The strong version of K-stability derived from the coercivity property of the K-energy |

11/10 | Hans-Joachim Hein | Riemannian convergence theory |

12/8 | Chris Bishop | True Trees |

**Abstract:** I’ll discuss general properties of integrals of exponents of polynomial functions on complex algebraic varieties, and infinite-dimensional generalizations. In particular, I’ll give a new interpretation of the solution of Hitchin equation as semi-infinite cohomology.

[box, type=”download”]Watch the video.[/box]

**Abstract:** I’ll discuss general properties of integrals of exponents of polynomial functions on complex algebraic varieties, and infinite-dimensional generalizations. In particular, I’ll give a new interpretation of the solution of Hitchin equation as semi-infinite cohomology.