Coxeter流形和广义仿射Weyl Frobenius流形上Getzler方程的对称性与解
Symmetries and Solutions of Getzler's Equation for Coxeter and Extended Affine Weyl Frobenius Manifolds
摘要：
研究了半单Frobenius流形C^n/W（其中W是Coxeter群或扩展的仿射Weyl群）上的G-函数. G函数的一般形式给出了在焦散线的对数奇异性在流形上。本文的主要结果是对应于Frobenius流形C^n/W^（k）（A_{n-1}）的G-函数的一个普适公式，其中W^（k）（A_{n-1}）是某个推广的仿射Weyl群（或等价地对应于Hurwitz空间M_{0;k-1,n-k-1}），以及G-函数在焦散线数据下的一般形式。G函数的对称性也进行了研究。
英文摘要：
The G-function associated to the semi-simple Frobenius manifold C^n/W (where W is a Coxeter group or an extended affine Weyl group) is studied. The general form of the G function is given in terms of a logarithmic singularity over caustics in the manifold. The main result in this paper is a universal formula for the G-function corresponding to the Frobenius manifold C^n/W^(k)(A_{n-1}) where W^(k)(A_{n-1}) is a certain extended affine Weyl group (or, equivalently, corresponding to the Hurwitz space M_{0;k-1,n-k-1}), together with the general form of the G-function in terms of data on caustics. Symmetries of the G function are also studied.
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