# SCIENTIFIC PROGRAMS AND ACTIVITIES

June 27, 2017
THE FIELDS INSTITUTE FOR RESEARCH IN MATHEMATICAL SCIENCES
 Thematic Program on Calabi-Yau Varieties: Arithmetic, Geometry and Physics Postdoctoral Seminars Room 210, Fields Institute
 Upcoming Seminars Tuesday, December 17 11:00 a.m. Room 210 Andrija Perunicic Examples of the Calabi-Yau/Landau-Ginzburg Correspondence Past Seminars 2013 Thursday, December 12 11:00 a.m. Room 210 Sara Filippini Berglund-Hubsch for elliptic curves Tuesday, December 10 11:00 a.m. Room 210 Peter Overholser What is motivic measure? Thursday, December 5 11:00 a.m. Room 210 Helge Ruddat Constructing homology cycles in a CY threefold by hand Tuesday, December 3 11:00 a.m. Room 210 Michel Van Garel Integrality of relative BPS state counts of toric del Pezzo surfaces Thursday, November 28 11:00 a.m. Room 210 Alan Thompson Plane sextics and hyperbolic diagrams Tuesday, November 26 11:00 a.m. Room 210 Alex Molnar Generalized Borcea-Voisin constructions with a view towards Mirror Symmetry Thursday, November 7 11:00 a.m. Room 210 Simon Rose Computing the Gromov-Witten invariants of elliptically fibred CY3s over a Del Pezzo surface Tuesday. November 5 11:00 a.m. Room 210 Yuecheng Zhu Donaldson-Thomas invariants and wall-crossing formulas Thursday, Oct. 31 10:00 a.m. Stewart Library Andre Perunicic Borisov's restatement of berglund-hubsch duality and associated arithmetic considerations Tuesday. Oct. 29 10:00 a.m. Stewart Library Michel van Garrel Modularity of generating functions of stable pair invariants for K3 surfaces Thursday, Oct. 3 10:00 a.m. Stewart Library Simon Rose Tropical Mirror Symmetry for the Elliptic Curve Tuesday. Oct. 1 10:00 a.m. Stewart Library Sara Angela Filippini Refined Curve Counting and the Tropical Vertex Fri, Sept. 6 2:00 p.m. Room 230 Zavosh Amir-Khosra The Cotangent Complex Thurs. Sept. 5 11:00 a.m. Peng Gao Chern number of stable CY bundles and DRY conjecture Fri, Aug.23 11 a.m. Sara Angela Filippini Simplicial Commutative Rings II Thurs, Aug.22 11 a.m. Klaus Hulek Stable Cohomology of compactifications of A_g Tues, Aug.20 11:00 a.m. Junho Peter Whang Introduction to higher genus mirror symmetry Fri. Aug 16, 11 a.m. Calabi-Yau Derived Algebraic Geometry Seminar Peter Overholser Simplicial Commutative Rings I Thurs. Aug 15, 11 a.m. Zavosh Amir-Khosravi Classifying a "rigid" family of abelian surfaces Tues, Aug 13, 11 a.m. Ablerto Garcia Raboso A non-abelian Hodge theorem for twisted vector bundles Fri, Aug. 9, 2 p.m. Stewart Library Michel van Garrel Introduction and motivations for Derived Algebraic Geometry Thurs, Aug. 8, 11 a.m. Atsushi Kanazawa Calabi-Yau threefolds of type K and mirror symmetry Tues, Aug. 6, 11 a.m. Yuecheng Zhu Compactifications of moduli of abelian varieties and mirror symmetry Thurs, Aug. 1, 11 a.m. Alexandr Kolpakov (University of Fribourg) Hyperbolic polytopes and manifolds in dimensions beyond three I will speak about the geometry and combinatorics of hyperbolic polytopes and manifolds in dimension $n \geq 4$. I will give an overview of dimension $n=4$. Then I will speak about higher dimensions, which are less investigated by the moment. Finally I will concentrate on recent results and open questions. Tues, July 30, 11 a.m. Andrija Perunicic Arithmetic Aspects of Berglund-Hubsch Duality Thurs, July 25, 11 a.m. Steven Rayan (Toronto) Some aspects of Higgs bundles on curves Tues, July 23, 11 a.m. Douglas Overholser Tropical Landau-Ginzburg potentials and semisimple Frobenius manifolds Thurs, July 18, 11 a.m. Sara Angela Filippini Hodge Structures of Calabi-Yau type and special geometry Tues, July 16, 11 a.m. Alan Thompson Families and moduli of K3 surfaces and Calabi-Yau threefolds Thurs, July 11, 11 a.m. Helge Ruddat Conifold transitions and SYZ mirror symmetry Tues, July 9, 11 a.m. Simon Rose Orbifold reduced Gromov-Witten theory, and curve-counting on Abelian surfaces Thurs, July 4, 11 a.m. Michel van Garrel Ramifications of a formula for Gromov-Witten invariants