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The bosonization equivalence between the 2-dimensional Dirac and Laplacian operators can be used to derive new interesting identities involving Theta functions. We use these formulae to compute the multiloop partition function of the…

High Energy Physics - Theory · Physics 2009-11-10 Rodolfo Russo , Stefano Sciuto

We present gluing formulas for zeta regularized determinants of Dolbeault laplacians on Riemann surfaces. These are expressed in terms of determinants of associated operators on surfaces with boundary satisfying local elliptic boundary…

Differential Geometry · Mathematics 2012-04-26 Richard A. Wentworth

Let $X$ be a Riemann surface of genus $g\ge 1$ endowed with a flat conical metric $m$ and let ${\rm det}\,\Delta$ be the $\zeta$-regularized determinant of the Friedrichs Laplacian on $(X,m)$. We derive variational formulas for ${\rm…

Differential Geometry · Mathematics 2025-05-20 Dmitrii Korikov , Alexey Kokotov

We find an explicit expression for the zeta-regularized determinant of (the Friedrichs extension) of the Laplacian on a compact Riemann surface of genus one with conformal metric of curvature $1$ having a single conical singularity of angle…

Differential Geometry · Mathematics 2017-12-15 Victor Kalvin , Alexey Kokotov

We investigate the behaviour of the regularized determinant of the Laplace-Beltrami operator on compact hyperbolic surfaces when the genus goes to infinity. We show that for all popular models of random surfaces, with high probability as…

Spectral Theory · Mathematics 2023-12-19 Frédéric Naud

Compact polyhedral surfaces (or, equivalently, compact Riemann surfaces with conformal flat conical metrics) of an arbitrary genus are considered. After giving a short self-contained survey of their basic spectral properties, we study the…

Differential Geometry · Mathematics 2009-06-04 Alexey Kokotov

The goal of this paper is to compute the zeta function determinant for the massive Laplacian on Riemann caps (or spherical suspensions). These manifolds are defined as compact and boundaryless $D-$dimensional manifolds deformed by a…

Mathematical Physics · Physics 2011-03-04 Antonino Flachi , Guglielmo Fucci

We prove a formula for the determinant of Laplacian on an arbitrary compact polyhedral surface of genus one. This formula generalizes the well-known Ray-Singer result for a flat torus. A special case of flat conical metrics given by the…

Differential Geometry · Mathematics 2007-05-23 Yulia Klochko , Alexey Kokotov

The odd signature operator is a Dirac operator which acts on the space of differential forms of all degrees and whose square is the usual Laplacian. We extend the result of [15] to prove the gluing formula of the zeta-determinants of…

Differential Geometry · Mathematics 2013-11-19 Rung-Tzung Huang , Yoonweon Lee

We study two types of regularizations of the determinant of Laplacian on Riemann manifold from the viewpoint of resurgence theory. One is the formal logarithmic derivative of the determinant, and the other is its exponential deformation.…

Mathematical Physics · Physics 2026-05-06 Wen Shen , Shanzhong Sun

In this note we pursue a discrete analogue of a celebrated theorem by Osgood, Phillips and Sarnak, which states that in a fixed conformal class of Riemannian metrics of fixed volume on a closed Riemann surface, the zeta-determinant of the…

Differential Geometry · Mathematics 2023-12-05 Paul Hafemann , Boris Vertman

In this paper we discuss the BFK type gluing formula for zeta-determinants of Laplacians with respect to the Robin boundary condition on a compact Riemannian manifold. As a special case, we discuss the gluing formula with respect to the…

Differential Geometry · Mathematics 2023-07-04 Klaus Kirsten , Yoonweon Lee

We study the asymptotics of the determinant of Laplacian on a translation surface (a compact Riemann surface equipped with a conformal flat conical metric with trivial holonomy) of genus g with 2g-2 conical points of angle 4\pi as two…

Differential Geometry · Mathematics 2009-08-13 Alexey Kokotov

We study functional determinants for Dirac operators on manifolds with boundary. We give, for local boundary conditions, an explicit formula relating these determinants to the corresponding Green functions. We finally apply this result to…

High Energy Physics - Theory · Physics 2016-08-15 H. Falomir , R. E. Gamboa Saraví , M. A. Muschietti , E. M. Santangelo , J. E. Solomin

We show in a unified manner that the factorization method describes completely the $L^2$-eigenspaces associated to the discrete part of the spectrum of the twisted Laplacian on constant curvature Riemann surfaces. Subclasses of two variable…

Spectral Theory · Mathematics 2011-10-04 Allal Ghanmi

On an open manifold, the spaces of metrics or connections of bounded geometry, respectively, split into an uncountable number of components. We show that for a pair of metrics or connections, belonging to the same component, relative…

dg-ga · Mathematics 2008-02-03 J. Eichhorn

For $\Pi \subset \mathbb{R}^2$ a connected, open, bounded set whose boundary is a finite union of disjoint polygons whose vertices have integer coordinates, the logarithm of the discrete Laplacian on $L\Pi \cap \mathbb{Z}^2$ with Dirichlet…

Mathematical Physics · Physics 2023-04-19 Rafael Leon Greenblatt

We discuss a specific class of regular-singular Laplace-type operators with matrix coefficients. Their zeta determinants were studied by K. Kirsten, P. Loya and J. Park on the basis of the Contour integral method, with general boundary…

Mathematical Physics · Physics 2020-04-14 Boris Vertman

This paper presents a Meyer-Vietoris type gluing formula for a conformal invariant of a Riemannian surface with boundary that is defined by the determinant of the Dirichlet-to-Neumann operator. The formula is used to bound the asymptotics…

Differential Geometry · Mathematics 2022-09-27 Richard A. Wentworth

Using the overlap formulation, we calculate the fermionic determinant on the lattice for chiral fermions with twisted boundary conditions in two dimensions. When the lattice spacing tends to zero we recover the results of the usual…

High Energy Physics - Theory · Physics 2009-10-28 C. D. Fosco , S. Randjbar-Daemi
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