Spectral Networks and Non-abelianization

Autor:	Ionita, Matei, Morrissey, Benedict
Rok vydání:	2021
Předmět:	Mathematics - Algebraic Geometry High Energy Physics - Theory Mathematics - Representation Theory 14D21
Druh dokumentu:	Working Paper
Popis:	We generalize the non-abelianization of Gaiotto-Moore-Neitzke from the case of $SL(n)$ and $GL(n)$ to arbitrary reductive algebraic groups. This gives a map between a moduli space of certain $N$-shifted weakly $W$-equivariant $T$-local systems on an open subset of a cameral cover $\tilde{X}\rightarrow X$ to the moduli space of $G$-local systems on a punctured Riemann surface $X$. For classical groups, we give interpretations of these moduli spaces using spectral covers. Non-abelianization uses a set of lines on the Riemann surface $X$ called a spectral network, defined using a point in the Hitchin base. We show that these lines are related to trajectories of quadratic differentials on quotients of $\tilde{X}$. We use this to describe some of the generic behaviour of lines in a spectral network. Comment: 104 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2103.12285 Zobrazit plný text záznamu View this record from Arxiv