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From the irreducible decompositions' point of view, the structure of the cyclic $GL_n$-module generated by the $\alpha$-determinant degenerates when $\alpha=\pm \frac1k (1\leq k\leq n-1)$. In this paper, we show that $-\frac1k$-determinant…

Representation Theory · Mathematics 2007-11-20 Kazufumi Kimoto , Masato Wakayama

The Kac determinant for the Topological N=2 superconformal algebra is presented as well as a detailed analysis of the singular vectors detected by the roots of the determinants. In addition we identify the standard Verma modules containing…

High Energy Physics - Theory · Physics 2009-10-31 Matthias Doerrzapf , Beatriz Gato-Rivera

We investigate criteria for von-Neumann finiteness and reversibility in some classes of non-associative algebras. We show that all finite-dimensional alternative algebras, as well as all algebras obtained from the real numbers via the…

Rings and Algebras · Mathematics 2020-09-02 Erik Darpö , Patrik Nystedt

The aim of this paper is to offer an algebraic definition of infinite determinants of finite potent endomorphisms using linear algebra techniques. It generalizes Grothendieck's determinant for finite rank endomorphisms and is equivalent to…

Rings and Algebras · Mathematics 2013-03-28 Daniel Hernández Serrano , Fernando Pablos Romo

We calculate the Fuglede-Kadison determinant of arbitrary matrix-valued semicircular operators in terms of the capacity of the corresponding covariance mapping. We also improve a lower bound by Garg, Gurvits, Oliveira, and Widgerson on this…

Operator Algebras · Mathematics 2024-06-25 Tobias Mai , Roland Speicher

We extend the definition of analytic and Reidemeister torsion from closed compact Riemannian manifolds to compact Riemannian manifolds with boundary $(M, \partial M)$, given a flat bundle $\Cal F$ of $\Cal A$-Hilbert modules of finite type…

dg-ga · Mathematics 2008-02-03 D. Burghelea , L. Friedlander , T. Kappeler

This note will present a new proof of the fact that every uniformly bounded group of invertible elements in a finite von Neumann algebra is similar to a unitary group. The proof involves metric geometric arguments in the non-positively…

Operator Algebras · Mathematics 2017-05-04 Martin Miglioli

We show an invariance result for the L2-torsion of groups under uniform measure equivalence provided a measure-theoretic version of the determinant conjecture holds. The measure-theoretic determinant conjecture is discussed and, for…

Algebraic Topology · Mathematics 2010-04-20 Wolfgang Lueck , Roman Sauer , Christian Wegner

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

We introduce Nakayama functors for coalgebras and investigate their basic properties. These functors are expressed by certain (co)ends as in the finite case discussed by Fuchs, Schaumann, and Schweigert. This observation allows us to define…

Quantum Algebra · Mathematics 2023-03-21 Taiki Shibata , Kenichi Shimizu

The van Vleck determinant is an ubiquitous object, arising in many physically interesting situations such as: (1) WKB approximations to quantum time evolution operators and Green functions. (2) Adiabatic approximations to heat kernels. (3)…

High Energy Physics - Theory · Physics 2009-10-22 Matt Visser

We present several generalizations of Cauchy's determinant and Schur's Pfaffian by considering matrices whose entries involve some generalized Vandermonde determinants. Special cases of our formulae include previuos formulae due to S.Okada…

Combinatorics · Mathematics 2007-05-23 Masao Ishikawa , Soichi Okada , Hiroyuki Tagawa , Jiang Zeng

K-theoretic Donaldson invariants are holomorphic Euler characteristics of determinant line bundles on moduli spaces of rank 2 sheaves on surfaces. We develop an algorithm which determines the generating functions of K-theoretic Donaldson…

Algebraic Geometry · Mathematics 2016-09-26 Lothar Göttsche

We associate to each unital $C^*$-algebra $A$ a geometric object---a diagram of topological spaces representing quotient spaces of the noncommutative space underlying $A$---meant to serve the role of a generalized Gel'fand spectrum. After…

Operator Algebras · Mathematics 2014-08-07 Nadish de Silva

We extend Deligne's notion of determinant functor to tensor triangulated categories. Specifically, to account for the multiexact structure of the tensor, we define a determinant functor on the 2-multicategory of triangulated categories and…

Category Theory · Mathematics 2023-09-07 Ettore Aldrovandi , Cynthia Lester

In our paper we consider the notion of determinant of Clifford algebra elements. We present some new formulas for determinant of Clifford algebra elements for the cases of dimension 4 and 5. Also we consider the notion of trace of Clifford…

Mathematical Physics · Physics 2016-08-29 Dmitry Shirokov

The Donald--Flanigan problem for a finite group H and coefficient ring k asks for a deformation of the group algebra kH to a separable algebra. It is solved here for dihedral groups and for the classical Weyl groups (whose rational group…

Quantum Algebra · Mathematics 2007-05-23 Murray Gerstenhaber , Anthony Giaquinto , Mary E. Schaps

Motivated by our results in "Polish Models and Sofic Entropy," we define modified version of the independence tuples for sofic entropy developed by Kerr and Li. These modified version essentially require that the independence sequences give…

Dynamical Systems · Mathematics 2017-08-31 Ben Hayes

We study determinant functors which are defined on a triangulated category and take values in a Picard category. The two main results are the existence of a universal determinant functor for every small triangulated category, and a…

Category Theory · Mathematics 2007-05-23 Manuel Breuning

Lehmer's famous problem asks whether the set of Mahler measures of polynomials with integer coefficients admits a gap at 1. In 2019, L\"uck extended this question to Fuglede-Kadison determinants of a general group, and he defined the…

Group Theory · Mathematics 2022-09-01 Fathi Ben Aribi