# Taipei Postdoc Seminar

## December 25, 2019 (Wed.) 11:00-12:30 David Wen (National Center for Theoretical Sciences) Venue: Room 638, Astro-Math. Building Title: Birational Models of Elliptic Fibrations and Beyond

Abstract:

Elliptic fibrations are geometric spaces fibered by elliptic curves and they play an important role in Mathematics and Physics. In mathematics, they turn out to be good test cases for studying techniques and conjectures on fiber spaces with Calabi-Yau fibers and, in physics, many string theory models are associated to elliptically fibered Calabi-Yau varieties. In this talk, we will discuss some results on the birational geometry of elliptic fibrations, their relationship to string theory and as well as higher dimensional generalizations.

2016

## Jan. 3, Sheng-Fu Chiu (AS) Wrapped Microlocal Sheaves II Jan. 4, Sheng-Fu Chiu (AS) Wrapped Microlocal Sheaves III Jan. 18, Yi-ning Hsiao (University of Geneva) The E-polynomials of a stratification of the Hilbert scheme of points. May 15, Sasha Minets (IST Austria) Cohomological Hall algebras and sheaves on surfaces-- Sep. 18, Bingying Lu (AS) Riemann-Hilbert problem and Painlevé-I equation Oct. 2, Yuki Chino (NCTS) Stochastic processes in random media Oct. 16, Shih-Yu Chen (AS) On The Algebraicity of The Symmetric Sixth Power L -functions of Elliptic Modular Forms Oct. 23, Junsik Bae (NCTS) Solitary waves of the Euler-Poisson system Oct. 30, You Hung Hsu (NCTS) Shifted q=0 affine algebras. Nov. 6, Bharathwaj Palvannan (NCTS) Codimension two cycles in Iwasawa theory Nov. 13, Bochen Liu (NCTS) Interplay between analysis and combinatorics: distance, tiling, and exponential basis Nov. 20, Chen Hao (Universität Göttingen) Triply Periodic Minimal Surfaces, my recent adventures Nov. 27, Sanghyuck Moon (NCTS) Variational methods for an elliptic equation and system Dec. 4, Arasteh Rad (NCTS) Langlands Program and Manifestations of Shtukas Dec. 11, Yoshihiro Sugimoto (NCTS) Symplectic topology and Hamiltonian dynamics

### The Taipei Postdoc Seminar is a weekly seminar that is organized jointly by the Institute of Mathematics of Academia Sinica and the National Center for Theoretical Sciences during the regular academic year. The seminar is held in these two mathematical institutions, with each one of them hosting the event approximately once every two weeks. The National Taiwan University, Academia Sinica, and the NCTS, together employ a significant number of postdoctoral fellows in mathematics from all over the world every year. The diverse scientific and cultural backgrounds of these postdocs create a unique environment of learning, and the goal of the Taipei Postdoc Seminar is to take advantage of this opportunity by bringing together all these postdocs once in a week in an informal-style seminar to enhance discussions and exchange of ideas among the participants. It is our belief that not only will this seminar encourage and eventually lead to more collaboration among mathematicians in Taipei, but it will also give the participants a chance to broaden their own scientific viewpoints. It is our hope that this seminar will greatly enrich the academic experience of the postdoctoral fellows during their stay in Taipei. Organizers: Sheng-Fu Chiu (sfchiu@gate.sinica.edu.tw), Jia-Yuan Dai (jydai@ncts.tw)

Former organisers