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The moduli space of flat SL(2,R)-connections modulo gauge transformations on the torus may be described by ordered pairs of commuting SL(2,R) matrices modulo simultaneous conjugation by SL(2,R) matrices. Their spectral properties allow a…

Mathematical Physics · Physics 2011-04-12 J. E. Nelson , R. F. Picken

A variety of local index formulas is constructed for quantum Hamiltonians with periodic boundary conditions. All dimensions of physical space as well as many symmetry constraints are covered, notably one-dimensional systems in Class DIII as…

Mathematical Physics · Physics 2025-06-17 Nora Doll , Terry Loring , Hermann Schulz-Baldes

We introduce a class of generalized tube algebras which describe how finite, non-invertible global symmetries of bosonic 1+1d QFTs act on operators which sit at the intersection point of a collection of boundaries and interfaces. We develop…

High Energy Physics - Theory · Physics 2026-02-04 Yichul Choi , Brandon C. Rayhaun , Yunqin Zheng

We study the phase diagram of scalar field theory on a three dimensional Euclidean spacetime whose spatial component is a fuzzy sphere. The corresponding model is an ordinary one-dimensional matrix model deformed by terms involving fixed…

High Energy Physics - Theory · Physics 2011-03-22 Matthias Ihl , Christoph Sachse , Christian Saemann

Recently, a geometrical characterization of vector spaces served to generalize them into a new class of algebras. Instead of the algebraic properties of the underlying fields, we generalized the recently discovered property of such spaces…

Algebraic Geometry · Mathematics 2019-01-23 Gabriele Ricci

A fuzzy version of the ordinary round 2-sphere has been constructed with an invariant curvature. We here consider linear connections on arbitrary fuzzy surfaces of genus zero. We shall find as before that they are more or less rigidly…

General Relativity and Quantum Cosmology · Physics 2009-10-30 J. Madore

We propose a matrix regularization of vector bundles over a general closed K\"ahler manifold. This matrix regularization is given as a natural generalization of the Berezin-Toeplitz quantization and gives a map from sections of a vector…

High Energy Physics - Theory · Physics 2023-01-11 Hiroyuki Adachi , Goro Ishiki , Satoshi Kanno

Matrix models are proposed as nonperturbative formulations of superstring theory. We study a concrete correspondence of the analytical result between the matrix model and the field theory. In this paper, we focus on a fuzzy sphere and a…

High Energy Physics - Theory · Physics 2020-03-18 Masaki Honda

Toral automorphisms, represented by unimodular integer matrices, are investigated with respect to their symmetries and reversing symmetries. We characterize the symmetry groups of GL(n,Z) matrices with simple spectrum through their…

Dynamical Systems · Mathematics 2019-07-16 Michael Baake , John A. G. Roberts

It is a classical result in matrix algebra that any square matrix over a field can be conjugated to its transpose by a symmetric matrix. For $F$ a non-Archimedean local field, Tupan used this to give an elementary proof that transpose…

Rings and Algebras · Mathematics 2019-06-07 Thomas Madsen , Alan Roche , C. Ryan Vinroot

It is shown that in a tower of coverings the regularized determinant of a generalized Laplacian converges to the $L^2$-determinant. This shows generic nontriviality of analytic torsion or regularized determinants since the…

dg-ga · Mathematics 2008-02-03 Anton Deitmar

In this paper, a generalized cusp is a properly convex manifold with strictly convex boundary that is diffeomorphic to $M \times [0, \infty)$ where $M$ is a closed Euclidean manifold. These are classified in [2]. The marked moduli space is…

Geometric Topology · Mathematics 2020-08-24 Samuel A. Ballas , Daryl Cooper , Arielle Leitner

In this paper we construct monodromy representing generalized special Lagrangian torus fibrations for Calabi-Yau hypersurfaces in toric varieties near the large complex limit.

Differential Geometry · Mathematics 2007-05-23 Wei-Dong Ruan

This paper further studies the fuzzy rough sets based on fuzzy coverings. We first present the notions of the lower and upper approximation operators based on fuzzy coverings and derive their basic properties. To facilitate the computation…

Information Theory · Computer Science 2013-04-02 Guangming Lang , Qingguo Li , Lankun Guo

Laplacian operators are classical objects that are fundamental in both pure and applied mathematics and are becoming increasingly prominent in modern computational and data science fields such as applied and computational topology and…

Algebraic Topology · Mathematics 2025-11-05 Arne Wolf , Jiyu Fan , Anthea Monod

This article represents a major step in the unification of the theory of algebraic, topological and singular transition matrices by introducing a definition which is a generalization that encompasses all of the previous three. When this…

Dynamical Systems · Mathematics 2013-11-15 Robert Franzosa , Ketty A. de Rezende , Ewerton R. Vieira

The centralizer algebra of a matrix consists of those matrices that commute with it. We investigate the basic representation-theoretic invariants of centralizer algebras, namely their radicals, projective indecomposable modules, injective…

Rings and Algebras · Mathematics 2010-12-22 Umesh V. Dubey , Amritanshu Prasad , Pooja Singla

We consider matrix factorizations and homological mirror symmetry on the torus T^2 using a Landau-Ginzburg description. We identify the basic matrix factorizations of the Landau-Ginzburg superpotential and compute the full spectrum, taking…

High Energy Physics - Theory · Physics 2009-11-13 Johanna Knapp , Harun Omer

We construct an approximation to field theories on the noncommutative torus based on soliton projections and partial isometries which together form a matrix algebra of functions on the sum of two circles. The matrix quantum mechanics is…

High Energy Physics - Theory · Physics 2008-11-26 Giovanni Landi , Fedele Lizzi , Richard J. Szabo

We find two bases for the lattices of the SU(2)-TQFT-theory modules of the torus over given rings of integers. We use variant of the bases defined in [GMW]for the lattices of the SO(3)-TQFT-theory modules of the torus. Moreover, we discuss…

Geometric Topology · Mathematics 2007-05-23 Khaled Qazaqzeh