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We prove combinatorially the explicit relation between genus filtrated $s$-loop means of the Gaussian matrix model and terms of the genus expansion of the Kontsevich--Penner matrix model (KPMM). The latter is the generating function for…

高能物理 - 理论 · 物理学 2015-01-26 Jørgen Ellegaard Andersen , Leonid O. Chekhov , Paul Norbury , Robert C. Penner

We prove that every degree-g polynomial in the $\psi$-classes on $\overline{\mathcal M}_{g, n}$ can be expressed as a sum of tautological classes supported on the boundary with no $\kappa$-classes. Such equations, which we refer to as…

代数几何 · 数学 2023-10-24 Emily Clader , Felix Janda , Xin Wang , Dmitry Zakharov

Though Gaussian graphical models have been widely used in many scientific fields, relatively limited progress has been made to link graph structures to external covariates. We propose a Gaussian graphical regression model, which regresses…

统计方法学 · 统计学 2022-02-01 Jingfei Zhang , Yi Li

We prove a new recursive relation between the correlators $< \tau_{d_1}\gamma_1...\tau_{d_n}\gamma_n >_{g,\beta}$, which together with known relations allows one to express all of them through the full system of Gromov-Witten invariants in…

alg-geom · 数学 2009-10-30 Maxim Kontsevich , Yuri I. Manin

We state and prove a topological recursion relation that expresses any genus-g Gromov-Witten invariant of a projective manifold with at least a (3g-1)-st power of a cotangent line class in terms of invariants with fewer cotangent line…

代数几何 · 数学 2007-05-23 Andreas Gathmann

For an arbitrary cocompact hyperbolic Coxeter group G with finite generator set S and complete growth function P(x)/Q(x), we provide a recursion formula for the coefficients of the denominator polynomial Q(x) which allows to determine…

度量几何 · 数学 2010-06-24 Ruth Kellerhals , Genevieve Perren

We study the Masur-Veech volumes $MV_{g,n}$ of the principal stratum of the moduli space of quadratic differentials of unit area on curves of genus $g$ with $n$ punctures. We show that the volumes $MV_{g,n}$ are the constant terms of a…

In this PhD thesis we will discuss some aspects in Commutative Algebra which have interactions with Algebraic Geometry, Representation Theory and Combinatorics. In particular, in the first chapter we will focus on understanding when certain…

交换代数 · 数学 2011-05-30 Matteo Varbaro

In Part 1 of this paper, we study gravitational descendents of Gromov-Witten invariants for general projective manifolds, applying the Behrend-Fantechi construction of the virtual fundamental classes. In Part 2, we calculate the topological…

代数几何 · 数学 2007-05-23 Ezra Getzler

We begin with isotropic Gaussian random fields, and show how the Bochner-Godement theorem gives a natural way to describe their covariance structure. We continue with a study of Mat\'ern processes on Euclidean space, spheres, manifolds and…

概率论 · 数学 2021-11-24 N. H. Bingham , Tasmin L. Symons

Many applications of Gaussian random fields and Gaussian random processes are limited by the computational complexity of evaluating the probability density function, which involves inverting the relevant covariance matrix. In this work, we…

宇宙学与河外天体物理 · 物理学 2018-12-26 Theodor Bjorkmo , M. C. David Marsh

We investigate a Gaussian mixture model (GMM) with component means constrained in a pre-selected subspace. Applications to classification and clustering are explored. An EM-type estimation algorithm is derived. We prove that the subspace…

机器学习 · 统计学 2015-08-27 Mu Qiao , Jia Li

We define q-analogues of Mirzakhani's recursion for Weil-Petersson volumes and the Stanford-Witten recursion for super Weil-Petersson volumes. Okuyama recently introduced a q-deformation of the Gaussian Hermitian matrix model which produces…

代数几何 · 数学 2025-10-15 Norman Do , Paul Norbury

We study a class of Gaussian processes for which the posterior mean, for a particular choice of data, replicates a truncated Taylor expansion of any order. The data consist of derivative evaluations at the expansion point and the prior…

机器学习 · 计算机科学 2023-08-29 Toni Karvonen , Jon Cockayne , Filip Tronarp , Simo Särkkä

We establish an alternative, ``perpendicular" collection of generating functions for the coefficients of Gaussian polynomials, $\begin{bmatrix}N+m\\m\end{bmatrix}_q$. We provide a general characterization of these perpendicular generating…

数论 · 数学 2025-10-17 Christian Krattenthaler , Brandt Kronholm , Paul Marsh

The paper is devoted to the open topological recursion relations in genus 1, which are partial differential equations that conjecturally control open Gromov-Witten invariants in genus 1. We find an explicit formula for any solution…

数学物理 · 物理学 2021-07-14 Oscar Brauer , Alexandr Buryak

In arXiv:hep-th/0310113 we started a program of creating a reference-book on matrix-model tau-functions, the new generation of special functions, which are going to play an important role in string theory calculations. The main focus of…

高能物理 - 理论 · 物理学 2009-11-05 A. Alexandrov , A. Mironov , A. Morozov , P. Putrov

Simple boundary expressions for the k-th power of the cotangent line class on the moduli space of stable 1-pointed genus g curves are found for k >= 2g. The method is by virtual localization on the moduli space of maps to the projective…

代数几何 · 数学 2010-04-23 Xiaobo Liu , Rahul Pandharipande

We establish a simple recurrence formula for the number $Q_g^n$ of rooted orientable maps counted by edges and genus. We also give a weighted variant for the generating polynomial $Q_g^n(x)$ where $x$ is a parameter taking the number of…

组合数学 · 数学 2015-05-20 Sean R. Carrell , Guillaume Chapuy

We investigate supereigenvalue models in the Ramond sector and their recursive structure. We prove that the free energy truncates at quadratic order in Grassmann coupling constants, and consider super loop equations of the models with the…

高能物理 - 理论 · 物理学 2019-11-12 Kento Osuga
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