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We consider a generalization of representations of quivers that can be derived from the ordinary representations of quivers by considering a product of arbitrary classical groups instead of a product of the general linear groups and by…

Representation Theory · Mathematics 2009-04-27 A. A. Lopatin

The classical de Finetti theorem in probability theory relates symmetry under the permutation group with the independence of random variables. This result has application in quantum information. Here we study states that are invariant with…

Mathematical Physics · Physics 2019-12-13 Kaifeng Bu , Arthur Jaffe , Zhengwei Liu , Jinsong Wu

Let $G$ be a complex classical group, and let $V$ be its defining representation (possibly plus a copy of the dual). A foundational problem in classical invariant theory is to write down generators and relations for the ring of…

Representation Theory · Mathematics 2024-11-20 Rebecca Bourn , William Q. Erickson , Jeb F. Willenbring

We prove that under fairly general conditions an iterated exchange move gives infinitely many non-conjugate braids. As a consequence, every knot has infinitely many conjugacy classes of n-braid representations if and only if it has one…

Geometric Topology · Mathematics 2011-03-15 Reiko Shinjo , Alexander Stoimenow

We argue how to identify supersymmetric quiver quantum mechanics description of BPS states, which arise in string theory in brane systems representing knots. This leads to a surprising relation between knots and quivers: to a given knot we…

High Energy Physics - Theory · Physics 2018-01-03 Piotr Kucharski , Markus Reineke , Marko Stosic , Piotr Sułkowski

From the work of X. S. Lin and Z. Wang, it follows that degree two knot invariant admits a decomposition into the sum of a Gauss diagram count and a term involving Arnold invariants. In this paper we establish an analogous description for…

Geometric Topology · Mathematics 2025-10-07 Ryosuke Hirata

This work presents an approach towards the representation theory of the braid groups $B_n$. We focus on finite-dimensional representations over the field of Laurent series which can be obtained from representations of infinitesimal braids,…

Representation Theory · Mathematics 2007-05-23 Ivan Marin

The theory of welded and extended welded knots is a generalization of classical knot theory. Welded (resp. extended welded) knot diagrams include virtual crossings (resp. virtual crossings and wen marks) and are equivalent under an extended…

Geometric Topology · Mathematics 2018-09-18 N. Backes , M. Kaiser , T. Leafblad , E. I. C. Peterson , D. N. Yetter

Knot theory is an active field of mathematics, in which combinatorial and computational methods play an important role. One side of computational knot theory, that has gained interest in recent years, both for complexity analysis and…

Computational Geometry · Computer Science 2025-12-09 Clément Maria , Hoel Queffelec

Computing polynomial invariants for knots and links using braid representations relies heavily on finding the trace of Hecke algebra elements. There is no easy method known for computing the trace and hence it becomes difficult to compute…

Geometric Topology · Mathematics 2021-01-05 Rama Mishra , Hitesh Raundal

Various properties of a class of braid matrices, presented before, are studied considering $N^2 \times N^2 (N=3,4,...)$ vector representations for two subclasses. For $q=1$ the matrices are nontrivial. Triangularity $(\hat R^2 =I)$…

Quantum Algebra · Mathematics 2009-11-10 A. Chakrabarti

In this article, we extend several algebraic graph analysis methods to bipartite networks. In various areas of science, engineering and commerce, many types of information can be represented as networks, and thus the discipline of network…

Discrete Mathematics · Computer Science 2015-01-16 Jérôme Kunegis

We review the q-deformed spin network approact to Topological Quantum Field Theory and apply these methods to produce unitary representations of the braid groups that are dense in the unitary groups. These methods produce a concise proof…

Quantum Physics · Physics 2009-11-13 Louis H. Kauffman , Samuel J. Lomonaco

We employ a solution of the Yang-Baxter equation to construct invariants for knot-like objects. Specifically, we consider a Yang-Baxter state model for the sl(n) polynomial of classical links and extend it to oriented singular links and…

Geometric Topology · Mathematics 2021-12-16 Carmen Caprau , Tsutomu Okano , Danny Orton

We discuss relations between quantum BPS invariants defined in terms of a product decomposition of certain series, and difference equations (quantum A-polynomials) that annihilate such series. We construct combinatorial models whose…

High Energy Physics - Theory · Physics 2017-05-23 Piotr Kucharski , Piotr Sułkowski

We show that multivariable colored link invariants are derived from the roots of unity representations of $U_q(g)$. We propose a property of the Clebsch-Gordan coefficients of $U_q(g)$, which is important for defining the invariants of…

High Energy Physics - Theory · Physics 2008-02-03 Tetsuo Deguchi , Tomotada Ohtsuki

We relate commutative algebras in braided tensor categories to braid-reversed tensor equivalences, motivated by vertex algebra representation theory. First, for $\mathcal{C}$ a braided tensor category, we give a detailed construction of the…

Quantum Algebra · Mathematics 2022-01-14 Thomas Creutzig , Shashank Kanade , Robert McRae

Obtaining colored HOMFLY-PT polynomials for knots from 3-strand braid carrying arbitrary $SU(N)$ representation is still tedious. For a class of rank $r$ symmetric representations, $[r]$-colored HOMFLY-PT $H_{[r]}$ evaluation becomes…

High Energy Physics - Theory · Physics 2019-11-05 Saswati Dhara , A. Mironov , A. Morozov , An. Morozov , P. Ramadevi , Vivek Kumar Singh , A. Sleptsov

In this article, we investigate the BPS invariants associated with framed links. We extend the relationship between the algebraic curve (i.e. dual $A$-polynomial) and the BPS invariants of a knot investigated in \cite{GKS} to the case of a…

Geometric Topology · Mathematics 2025-02-25 Kai Wang , Shengmao Zhu

This paper reinterprets Alexander-type invariants of knots via representation varieties of knot groups into the group $\textrm{AGL}_1(\mathbb{C})$ of affine transformations of the complex line. In particular, we prove that the coordinate…

Geometric Topology · Mathematics 2025-09-29 Ángel González-Prieto , Javier Martínez , Vicente Muñoz