### CGP Seminar

#### [IBS-CGP Seminar]

#### May 29, 2013 –

#### CGP Main Hall

Center for Geometry and Physics (CGP) Seminars on every Thursday afternoon are the most important regular event of IBS-CGP, and all members of the center are expected to participate. The seminars are formatted to encourage robust and dynamic interactions among participants. The first part of the seminar is a scheduled 2-hour talk by a designated speaker starting at 2 pm with a 30-minute intermission with tea and snack. After the talk, there is a discussion session where an improvised talk by the original speaker or a participant may be organized on spot until 6 pm. Discussions may continue over dinner.

#### Talk(s)

- TBA
- 16:00 – 17:00, 2017-06-29 at CGP Main Hall
- Chieh-Cheng Lo (California State University Northridge)

- TBA
- 16:00 – 17:00, 2017-06-22 at CGP Main Hall
- Chieh-Cheng Lo (California State University Northridge)

- TBA
- 16:00 – 18:00, 2017-05-25 at CGP Main Hall
- Tamas Kalman (Tokyo Institute of Technology)

- The little discs operads, graph complexes, and Grothendieck-Teichmüller groups
- 16:00 – 18:00, 2017-04-18 at CGP Main Hall
- Benoit Fresse (Université Lille 1 )

- On Chain Groups
- 16:00 – 18:00, 2017-04-13 at CGP Main Hall
- Sang-hyun Kim (Seoul National University)

- Homotopy theory of unital algebras
- 16:00 – 18:00, 2017-03-30 at CGP Main Hall
- Brice Le Grignou (Utrecht University)

- Potential functions on two-plane Grassmannians and cluster transformations
- 16:00 – 18:00, 2017-03-23 at CGP Main Hall
- Yuichi Nohara (Meiji university)

- Topology & Arithmetic of moduli space for elliptic Lefschetz fibrations
- 16:00 – 18:00, 2017-01-19 at CGP Main Hall
- Jun-Yong Park (Univ. of Minnesota)

- Stable and unstable del Pezzo surfaces
- 16:00 – 18:00, 2017-01-12 at CGP Main Hall
- Ivan Cheltsov (University of Edinburgh)

- Real group orbits on complex infinite-dimensional flag varieties
- 16:00 – 18:00, 2017-01-06 at CGP Main Hall
- Mikhail Ignatyev (Samara National Research University)

- Trees and discrete subgroups of Lie groups over local fields
- 16:00 – 17:30, 2016-12-29 at CGP Main Hall
- Sanghoon Kwon (Korea Institute for Advanced Study)

- A systolic inequality on contact 3-manifolds
- 16:00 – 18:00, 2016-12-22 at CGP Main Hall
- Jungsoo Kang (University of Münster)

- Cellular stratiﬁed spaces III
- 16:00 – 18:00, 2016-12-15 at CGP Main Hall
- Dai Tamaki (Shinshu University)

- Lagrangian cobordisms and Floer theory
- 16:00 – 18:00, 2016-12-08 at CGP Main Hall
- Hiro Lee Tanaka (Harvard University)

- Curves with ordinary singularities
- 16:00 – 18:00, 2016-11-17 at CGP Main Hall
- Florin Ambro (Simion Stoilow)

- CR GEOMETRY ON THE BOUNDARIES OF FLAG DOMAINS
- 16:00 – 18:00, 2016-09-22 at CGP Main Hall
- Sung Yeon Kim (Korea Institute for Advanced Study)

- Landau-Ginzburg models
- 16:00 – 18:00, 2016-09-08 at CGP Main Hall
- David Nadler (University of California, Berkeley )

- Sutures and Higher Rank Bundles II
- 16:00 – 17:30, 2016-08-18 at CGP Main Hall
- Aliakbar Daemi (Simons Center for Geometry and Physics)

- Homotopy L-infinity spaces and Kuranishi manifolds
- 16:00 – 18:00, 2016-07-28 at CGP Main Hall
- Junwu Tu (University of Missouri)

- Homology of Hurwitz spaces and the Cohen-Lenstra heuristics for function fields
- 16:00 – 18:00, 2016-07-14 at CGP Main Hall
- Craig Westerland (University of Minnesota)

- Divisors on some surfaces with $p_g=q=0.$
- 16:00 – 18:00, 2016-06-30 at CGP Main Hall
- Kyoung-Seog Lee (Korea Institute for Advanced Study)

- Talking about my G-generation
- 16:00 – 18:00, 2016-05-19 at CGP Main Hall
- Yanki Lekili (King's College London)

- Koszul duality patterns in Floer theory
- 16:00 – 18:00, 2016-05-12 at CGP Main Hall
- Yanki Lekili (King's College London)

- No finite index subgroup of a mapping class group embeds into the $C^2$ circle diffeomorphism group
- 16:00 – 18:00, 2016-04-21 at CGP Main Hall
- Sang-hyun Kim (Seoul National University)

- Multigraphs-to-symplectic circle actions
- 16:00 – 18:00, 2016-04-14 at CGP Main Hall
- Donghoon Jang (Korea Institute for Advanced Study)

- Okounkov bodies associated to pseudoeffective divisors I
- 16:00 – 18:00, 2016-04-07 at CGP Main Hall
- Jinhyung Park (Korea Institute for Advanced Study)

- Classification results for two-dimensional Lagrangian tori
- 16:00 – 18:00, 2016-03-03 at CGP Main Hall
- Georgios Dimitroglou Rizell (University of Cambridge)

- On energy critical geometric wave equations
- 16:00 – 18:00, 2016-02-25 at CGP Main Hall
- Sung-Jin Oh (University of California Berkeley)

- Planar and spatial real algebraic curves: (half-) integer indices
- 16:00 – 18:00, 2016-02-18 at CGP Main Hall
- Grigory Mikhalkin (University of Geneva)

- Vertex algebras and their applications to the denominator identity
- 16:00 – 18:00, 2016-02-04 at CGP Main Hall
- Namhee Kwon (Daegu University)

- Segre classes and Schur polynomials for algebraic cobordism
- 16:00 – 18:00, 2016-01-28 at CGP Main Hall
- Thomas Hudson (Korea Advanced Institute of Science and Technology)

- Cyclic homology of a different kind
- 16:00 – 18:00, 2015-09-24 at CGP Main Hall
- Dmitry Kaledin (Steklov Mathematical Institute, Independent University of Moscow)

- Dense existence of periodic Reeb orbits and ECH spectral invariants
- 16:00 – 17:00, 2015-09-10 at CGP Main Hall
- Kei Irie (RIMS, Kyoto University)

- A chain level Batalin-Vilkovisky structure in string topology via de Rham chains
- 14:00 – 15:00, 2015-09-08 at CGP Main Hall
- Kei Irie (RIMS, Kyoto University)

- Overview of Mane's conjecture
- 16:00 – 18:00, 2015-09-03 at CGP Main Hall
- Daniel Massart (Universite Montpellier 2)

- An affine quantum cohomology ring and periodic Toda lattice
- 16:00 – 18:00, 2015-08-13 at CGP Main Hall
- Leonardo Constantin Mihalcea (Virginia Tech University)

- On Gauss images of isoparametric hypersurfaces
- 16:00 – 18:00, 2015-08-06 at CGP Main Hall
- Hui Ma ( Tsinghua University )

- Legendrian DGA as Immersed Floer Theory
- 16:00 – 18:00, 2015-06-18 at CGP Main Hall
- Garrett Alston ( University of Oklahoma )

- Non-orientable surfaces and S-duality
- 16:00 – 18:00, 2015-06-04 at CGP Main Hall
- Siye Wu (National Tsing Hua University)

- Persistent homology and Floer theory
- 14:00 – 15:30, 2015-05-07 at CGP Main Hall
- Michael Usher (University of Georgia)

- The cotangent bundle of a Grassmannian
- 16:00 – 18:00, 2015-04-23 at CGP Main Hall
- Vijay Ravikumar (Chennai Mathematical Institute)

- Quantitative h-principle and $C^0$ symplectic geometry II
- 16:00 – 18:00, 2015-04-16 at CGP Main Hall
- Emmanuel Opshtein (University of Strasbourg)

- Lagrangian submanifolds via surgeries
- 16:00 – 18:00, 2015-04-09 at CGP Main Hall
- Mei-Lin Yau (National Central University)

- Local Poincaré duality & deformation quantization
- 16:00 – 18:00, 2015-04-02 at CGP Main Hall
- Theo Johnson-Freyd (Northwetern University)

- Embedding problems of Artin groups into mapping class groups
- 16:00 – 16:50, 2015-03-12 at CGP Main Hall
- Yong Jin Song (Inha University)

- Mathematical Challenges in the Fluid Mechanics
- 16:00 – 18:00, 2015-02-12 at CGP Main Hall
- Dongho Chae (Chung-Ang University)

- On smooth isolated curves in general complete intersection Calabi-Yau threefolds
- 16:00 – 18:00, 2015-02-05 at CGP Main Hall
- Xun Yu (Pohang University of Science and Technology)

- Field theories and elliptic cohomology
- 16:00 – 18:00, 2015-01-29 at CGP Main Hall
- Daniel Berwick-Evans (Stanford University)

- Homotopy probability theory: examples and applications
- 16:00 – 18:00, 2015-01-08 at CGP Main Hall
- John Terilla (Queens College, City University of New York)

- Combinatorial spatial graph Floer homology
- 16:00 – 18:00, 2014-12-18 at CGP Main Hall
- Danielle O'Donnol (Oklahoma State University)

- The rational cohomology ring of unordered configurations on the torus
- 16:00 – 18:00, 2014-11-27 at CGP Main Hall
- Gabriel C. Drummond-Cole (Institute for Basic Science, Center for Geometry and Physics)

- Descent on general diophantine equations
- 16:00 – 18:00, 2014-10-02 at CGP Main Hall
- Dohyeong Kim (Institute for Basic Science, Center for Geometry and Physics)

- Primitive forms via polyvector fields
- 16:00 – 18:00, 2014-09-25 at CGP Main Hall
- Changzheng Li (IBS Center for Geometry and Physics)

- PreLie deformation theory (from an idea gotten at the CGP in March 2014)
- 16:00 – 17:30, 2014-08-28 at CGP Main Hall
- Bruno Vallette (Nice Sophia Antipolis University)

- Some remarks about Bridgeland stability conditions
- 16:00 – 17:00, 2014-07-31 at CGP Main Hall
- Hiro Lee Tanaka (Harvard University)

- Symplectic topologist's tales of quantum mechanics
- 14:00 – 15:30, 2014-07-31 at CGP Main Hall
- Leonid Polterovich (Tel Aviv University)

- Koszul duality and completion
- 16:00 – 18:00, 2014-07-24 at CGP Main Hall
- Joseph Hirsh (Massachusetts Institute of Technology)

- Compactified combinatorial string topology
- 16:00 – 18:00, 2014-07-17 at CGP Main Hall
- Kate Poirier (City University of New York)

- A + B model in conifold transitions
- 14:00 – 15:30, 2014-07-17 at CGP Main Hall
- Yuan-Pin Lee (The University of Utah)

- On quantum cohomology ring of ellipitic $\mathbb{P}^1$ orbifolds
- 14:00 – 15:30, 2014-07-10 at CGP Main Hall
- Hyung-Seok Shin (Seoul National University)

- Knot contact homology
- 16:00 – 18:00, 2014-06-12 at CGP Main Hall
- Michael Sullivan (University of Massachusetts, Amherst)

- Mirror maps and disk counting
- 16:00 – 18:00, 2014-05-22 at CGP Main Hall
- Kwokwai Chan (The Chinese University of Hong Kong)

- Hyperbolic volume for Knotted graphs
- 16:00 – 18:00, 2014-05-08 at CGP Main Hall
- Seonhwa Kim (Institute for Basic Science, Center for Geometry and Physics)

- Curvature and contact topology
- 16:00 – 18:00, 2014-04-17 at CGP Main Hall
- Patrick Massot (École Polytechnique)

- Localized mirror functors
- 16:00 – 18:00, 2014-04-10 at CGP Main Hall
- Cheol-Hyun Cho (Seoul National University)

- Homotopy theory of the Griffiths period integrals of hypersurfaces
- 16:00 – 18:00, 2014-04-03 at CGP Main Hall
- Jeehoon Park (POSTECH)

- Complex structures as homotopy algebras
- 16:00 – 18:00, 2014-03-20 at CGP Main Hall
- Joan Millès (Université Toulouse III - Paul Sabatier)

- Lagrangian cobordisms, the Fukaya category, and dreams about mirror symmetry over ring spectra II
- 16:00 – 18:00, 2014-03-13 at CGP Main Hall
- Hiro Lee Tanaka (Harvard University)

- Lagrangian cobordisms, the Fukaya category, and dreams about mirror symmetry over ring spectra
- 16:00 – 18:00, 2014-03-06 at CGP Main Hall
- Hiro Lee Tanaka (Harvard University)

- When is a Stein manifold merely symplectic?
- 16:00 – 18:00, 2014-02-20 at CGP Main Hall
- Chris Wendl (University College London)

- Tau function and Chern-Simons invariant
- 16:00 – 18:00, 2014-02-04 at CGP Main Hall
- Jinsung Park (Korea Institute for Advanced Study)

- Integrable systems and non-minimal rational elliptic surfaces
- 16:00 – 18:00, 2013-12-19 at CGP Main Hall
- Adrian Stefan Carstea (Horia Hulubei National Institute of Physics and Nuclear Engineering)

- An overview of Lagrangian cobordism in symplectic geometry
- 16:00 – 18:00, 2013-12-12 at CGP Main Hall
- Wenfeng Jiang (Nanjing University)

- Toward an E_infty minimal model
- 16:00 – 18:00, 2013-11-14 at CGP Main Hall
- Gabriel C. Drummond-Cole (Institute for Basic Science, Center for Geometry and Physics)

- Gromov─Witten Invariants of Toric fibrations (and Beyond)
- 16:00 – 18:00, 2013-11-07 at CGP Main Hall
- Jeff Brown (IBS-CGP)

- Hochschild-Witt complex
- 16:00 – 18:00, 2013-10-31 at CGP Main Hall
- Dmitry Kaledin (Steklov Mathematical Institute, Independent University of Moscow)

- Hodge structure and arithmetic of abelian varieties: around the Morita conjecture
- 16:00 – 18:00, 2013-10-17 at CGP Main Hall
- Dong Uk Lee (Institute for Basic Science, Center for Geometry and Physics)

- The uniqueness of the Fisher metric as information metric
- 16:00 – 18:00, 2013-10-10 at CGP Main Hall
- Hong Van Le (Institute of Mathematics of ASCR)

- Log minimal model program for the moduli space of curves
- 16:00 – 18:00, 2013-09-26 at CGP Main Hall
- Donghoon Hyeon (POSTECH)

- Singularity invariants related to Milnor fiber
- 16:00 – 18:00, 2013-09-12 at CGP Main Hall
- Youngho Yoon (Institute for Basic Science, Center for Geometry and Physics)

- Introduction to Birational geometry: 1. the minimal model program 2. Positivity of divisors
- 14:00 – 16:00, 2013-09-05 at CGP Main Hall
- Sung Rak Choi (IBS-CGP)

- On Seidel Representation
- 16:00 – 18:00, 2013-08-29 at CGP Main Hall
- Dongning Wang (IBS-CGP)

- The Analysis of Pseudo-holomorphic Curves in Contact Manifolds
- 16:00 – 18:00, 2013-08-22 at CGP Main Hall
- Rui Wang (Institute for Basic Science, Center for Geometry and Physics)

- Braid groups on CW complexes
- 14:00 – 16:00, 2013-08-01 at CGP Main Hall
- Byung Hee An (Institute for Basic Science, Center for Geometry and Physics)

- Orbifolds and topological defects
- 16:00 – 18:00, 2013-07-25 at CGP Main Hall
- Nils Carquville (Simons Center for Geometry and Physics)

- Classification of tight contact 3- manifolds
- 16:00 – 18:00, 2013-06-19 at CGP Main Hall
- Juhyun Lee (Institute for Basic Science, Center for Geometry and Physics)

- Introduction to knot contact homology II
- 16:00 – 18:00, 2013-06-12 at CGP Main Hall
- Youngjin Bae (Institute for Basic Science, Center for Geometry and Physics)

- Introduction to knot contact homology
- 16:00 – 18:00, 2013-06-05 at CGP Main Hall
- Youngjin Bae (Institute for Basic Science, Center for Geometry and Physics)

- Behavior of Hamiltonian systems under morphisms of phase spaces
- 16:00 – 18:00, 2013-05-29 at CGP Main Hall
- Sangwook Lee (Institute for Basic Science, Center for Geometry and Physics)