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arXiv 1502.00981math-phmath.MP
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Blobbed拓扑递归:性质及应用

Blobbed topological recursion: properties and applications

Gaëtan Borot, Sergey Shadrin

摘要:

研究抽象回路方程的解集$(ω_{g,n})_{g \geq 0,n \geq 1}$.我们证明,$ω_{g,n}$是由它的纯全纯部分:这导致在一个分解,我们称之为“斑点拓扑递归”。这是拓扑递归理论的推广,其中初始数据$(ω_{0,1},ω_{0,2})$被$n$变量$(ϕ_{g,n})_{2g - 2 + n > 0}$中的非零对称全纯形式所丰富。特别地,我们建立了抽象回路方程的任意解:(1)$ω_{g,n}$的一种图形表示,用$ϕ_{g,n}$表示;(2)$ω_{g,n}$的一种图形表示,用曲线模空间上的交数表示;(3)$ϕ_{g,n}$的无穷小变换下的变分公式;(4)关于变分公式的自由能$ω_{g,0} = F_g$的定义。详细讨论了它在多迹矩阵模型和填充映射计数中的应用。

英文摘要:

We study the set of solutions $(ω_{g,n})_{g \geq 0,n \geq 1}$ of abstract loop equations. We prove that $ω_{g,n}$ is determined by its purely holomorphic part: this results in a decomposition that we call "blobbed topological recursion". This is a generalization of the theory of the topological recursion, in which the initial data $(ω_{0,1},ω_{0,2})$ is enriched by non-zero symmetric holomorphic forms in $n$ variables $(ϕ_{g,n})_{2g - 2 + n > 0}$. In particular, we establish for any solution of abstract loop equations: (1) a graphical representation of $ω_{g,n}$ in terms of $ϕ_{g,n}$; (2) a graphical representation of $ω_{g,n}$ in terms of intersection numbers on the moduli space of curves; (3) variational formulae under infinitesimal transformation of $ϕ_{g,n}$ ; (4) a definition for the free energies $ω_{g,0} = F_g$ respecting the variational formulae. We discuss in detail the application to the multi-trace matrix model and enumeration of stuffed maps.

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