Representation Theory and Moduli Spaces

这项研究是在几个数学领域的交叉，包括表示论，代数几何，数论和数学物理。特别是朗兰兹纲领和（它起源于数论-可以说是数学中最古老的学科）和量子场论。在更技术性的方面，PI将研究与仿射Kac-Moody群相关的各种模空间（如某些代数曲面上主丛模空间的仿射Grassmannian，Uhlenbeck紧化，等），以解决以下问题：1）p-adic群表示的局部L-函数的构造，2）泛函域上仿射Kac-Moody群的Hecke代数和Eisenstein级数，3）四维规范理论中的瞬子计数和其它问题.

This research lies in the intersection of several fields of mathematics, including representation theory, algebraic geometry, number theory, and mathematical physics. In particular, new connections between the Langlands program (which originates in number theory - arguably the oldest subject in mathematics) and quantum field theory will be explored.On the more technical side the PI will study various moduli spaces attached to affine Kac-Moody groups (such as the affine Grassmannian, Uhlenbeck compactifications of moduli spaces of principal bundles on some algebraic surfaces, and some others) in order to attack the following problems: 1) a construction of local L-functions for representations of p-adic groups, 2) Hecke algebras and Eisenstein series for affine Kac-Moody groups over functional fields, and 3) instanton counting and other problems in 4-dimensional gauge theory.