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We interpret a recent formula for counting orbits of $GL(d,F_q)$ in terms of counting fixed points as addition in the affine braided line. The theory of such braided groups (or Hopf algebras in braided categories) allows us to obtain the…

Quantum Algebra · Mathematics 2007-05-23 P. J. Cameron , S. Majid

We define graded Hopf algebras with bases labeled by various types of graphs and hypergraphs, provided with natural embeddings into an algebra of polynomials in infinitely many variables. These algebras are graded by the number of edges and…

Combinatorics · Mathematics 2008-12-19 Jean-Christophe Novelli , Jean-Yves Thibon , Nicolas M. Thiéry

We extend the formalism of Hopf cyclic cohomology to the context of braided categories. For a Hopf algebra in a braided monoidal abelian category we introduce the notion of stable anti-Yetter-Drinfeld module. We associate a para-cocyclic…

Quantum Algebra · Mathematics 2009-11-21 Masoud Khalkhali , Arash Pourkia

For each braided category $\mathcal{C}$ we show that, under mild hypotheses, there is an associated category of "half braided algebras" and their bimodules internal to $\mathcal{C}$ which is not only monoidal but even braided and balanced.…

Quantum Algebra · Mathematics 2026-03-06 Francesco Costantino , Matthieu Faitg

In a companion work on the combinatorial quantization of 4d 2-Chern-Simons theory, the author has constructed the Hopf category of quantum 2-gauge transformations $\tilde{C}=\mathbb{U}_q\mathfrak{G}$ acting on the discrete surface-holonomy…

Mathematical Physics · Physics 2025-09-01 Hank Chen

In this paper the category of opposite brace triples is introduced in a general braided monoidal setting. Under cocommutativity, it is proved to be isomorphic to the category of Hopf braces. Furthermore, if one considers the subcategories…

Rings and Algebras · Mathematics 2026-05-11 Ramón González Rodríguez , Brais Ramos Pérez

In recent years, there has been great interest in the study of categorification, specifically as it applies to the theory of quantum groups. In this thesis, we would like to provide a new approach to this problem by looking at Hall…

Category Theory · Mathematics 2013-04-03 Christopher Walker

Topological order in two-dimensional systems is studied by combining the braid group formalism with a gauge invariance analysis. We show that flux insertions (or large gauge transformations) pertinent to the toroidal topology induce…

Strongly Correlated Electrons · Physics 2007-05-23 Masatoshi Sato , Mahito Kohmoto , Yong-Shi Wu

We give a pedagogical introduction to integration techniques appropriate for non-commutative spaces while presenting some new results as well. A rather detailed discussion outlines the motivation for adopting the Hopf algebra language. We…

Mathematical Physics · Physics 2009-09-25 C. Chryssomalakos

We define a Frobenius algebra over fusion categories of the form Rep$(G)\boxtimes$Rep$(G)$ which generalizes the diagonal subgroup of $G\times G$. This allows us to extend field theoretical constructions which depend on the existence of a…

High Energy Physics - Theory · Physics 2024-05-15 Daniel Robbins , Thomas Vandermeulen

We consider a subclass of the class of group-theoretical fusion categories: To every finite group $G$ and subgroup $H$ one can associate the category of $G$-graded vector spaces with a two-sided $H$-action compatible with the grading. We…

Quantum Algebra · Mathematics 2015-02-10 Peter Schauenburg

We present a novel approach to the concept of gluing in mathematics by introducing the notions of a gluing data category and a gluing data functor. Our work provides a formal categorical characterization of the notion of gluing in algebraic…

Category Theory · Mathematics 2024-03-04 Sophie Marques , Damas Mgani

We first extend the Peierls algebra of gauge invariant functions from the space ${\cal S}$ of classical solutions to the space ${\cal H}$ of histories used in path integration and some studies of decoherence. We then show that it may be…

High Energy Physics - Theory · Physics 2010-11-01 Donald Marolf

A long-term research proposal on the algebraic structure, the representations and the possible applications of paraparticle algebras is structured in three modules: The first part stems from an attempt to classify the inequivalent gradings…

Mathematical Physics · Physics 2012-10-09 Konstantinos Kanakoglou

We develop versions of the Poincar\'e-Birkhoff-Witt and Cartier-Milnor-Moore theorems in the setting of braided Hopf algebras. To do so, we introduce new analogues of a Lie algebra in the setting of a braided monoidal category, using the…

Quantum Algebra · Mathematics 2025-10-14 Craig Westerland

We present examples of color Hopf algebras, i.e. Hopf algebras in color categories (braided tensor categories with braiding induced by a bicharacter on an abelian group), related with quantum doubles of pointed Hopf algebras. We also…

Quantum Algebra · Mathematics 2014-02-10 Nicolas Andruskiewitsch , Ivan Angiono , Dirceu Bagio

Zesting of braided fusion categories is a procedure that can be used to obtain new modular categories from a modular category with non-trivial invertible objects. In this paper, we classify and construct all possible braided zesting data…

Quantum Algebra · Mathematics 2024-06-24 César Galindo , Giovanny Mora , Eric C. Rowell

The problem of determining gauge and monoidal equivalence classes of fusion categories is considered from the perspective of geometric invariant theory. It is shown that the gauge (or monoidal) class of a fusion category is determined by…

Quantum Algebra · Mathematics 2015-09-11 Tobias Hagge , Matthew Titsworth

The purpose of this paper is to develop a theory of bimonads and Hopf monads on arbitrary categories thus providing the possibility to transfer the essentials of the theory of Hopf algebras in vector spaces to more general settings. There…

Quantum Algebra · Mathematics 2008-06-11 Bachuki Mesablishvili , Robert Wisbauer

We define invariants of words in arbitrary groups, measuring how letters in a word are interleaving, perfectly detecting the dimension series of a group. These are the letter-braiding invariants. On free groups, braiding invariants coincide…

Group Theory · Mathematics 2025-02-21 Nir Gadish