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Related papers: Inequalities for free multi-braid arrangements

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We construct some braided quantum groups over the circle group. These are analogous to the free orthogonal quantum groups and generalise the braided quantum SU(2) groups for complex deformation parameter. We describe their irreducible…

Operator Algebras · Mathematics 2024-06-25 Ralf Meyer , Sutanu Roy

We prove a reformulation of the multiplicity upper bound conjecture and use that reformulation to prove it for three-dimensional simplicial complexes and homology manifolds with many vertices. We provide necessary conditions for a…

Commutative Algebra · Mathematics 2008-02-12 Michael Goff

We define cone structures and asymptotic invariants for multigraded systems of ideals, and show that essentially the only restrictions on such structures is convexity, which is imposed formally.

Algebraic Geometry · Mathematics 2007-05-23 A. Wolfe

In this work, we introduce multi-Novikov algebras, a generalisation of Novikov algebras with several binary operations indexed by a given set, and show that the multi-indices recently introduced in the context of singular stochastic partial…

Rings and Algebras · Mathematics 2026-05-26 Yvain Bruned , Vladimir Dotsenko

We study varieties of certain ordered $\Sigma$-algebras with restricted completeness and continuity properties. We give a general characterization of their free algebras in terms of submonads of the monad of $\Sigma$-coterms. Varieties of…

Logic in Computer Science · Computer Science 2023-06-22 Zoltan Esik , Dexter Kozen

We introduce and study a family of groups $\mathbf{BB}_n$, called the blocked-braid groups, which are quotients of Artin's braid groups $\mathbf{B}_n$, and have the corresponding symmetric groups $\Sigma_n$ as quotients. They are defined by…

Category Theory · Mathematics 2013-07-23 D. Maglia , N. Sabadini , R. F. C. Walters

Let $\mathcal C :f=0$ be a curve arrangement in the complex projective plane. If $\mathcal C$ contains a curve subarrangement consisting of at least three members in a pencil, then one obtains an explicit syzygy among the partial…

Algebraic Geometry · Mathematics 2017-08-30 Alexandru Dimca

The knot concordance group can be contextualized as organizing problems about 3- and 4-dimensional spaces and the relationships between them. Every 3-manifold is surgery on some link, not necessarily a knot, and thus it is natural to ask…

Geometric Topology · Mathematics 2023-08-30 Miriam Kuzbary

The surface singular braid monoid corresponds to marked graph diagrams of knotted surfaces in braid form. In a quest to resolve linearity problem for this monoid, we will show that if it is defined on at least two or at least three strands,…

Geometric Topology · Mathematics 2019-07-10 Michal Jablonowski

It is well know that the theory of minimal blocking sets is studied by several author. Another theory which is also studied by a large number of researchers is the theory of hyperplane arrangements. We can remark that the affine space…

Information Theory · Computer Science 2008-02-15 Simona Settepanella

A well-known construction of associahedra comes from truncations of simplices. Motivated by compactifications of point configurations, we show associahedra as truncations of certain products of simplices. This is then used to provide a…

Mathematical Physics · Physics 2011-09-14 Satyan L. Devadoss

Generalizing work of Marin [12], we construct in a unified way all the "braids and ties'' algebras available in literature and new ones.

Rings and Algebras · Mathematics 2025-11-26 Riccardo Fasano , Domenico Fiorenza , Paolo Papi

Random braids that are formed by multiplying randomly chosen permutation braids are studied by analyzing their behavior under Garside's weighted decomposition and cycling. Using this analysis, we propose a polynomial-time algorithm to the…

Geometric Topology · Mathematics 2007-05-23 Ki Hyoung Ko , Jang Won Lee

The purpose of this paper is to give new examples of families of free singularities. We first show that a generic equidimensional subspace arrangement is free. Furthermore, we show that a product of two reduced Cohen-Macaulay subspaces is…

Algebraic Geometry · Mathematics 2020-12-23 Raul Epure , Delphine Pol

We associate to every positive braid a braid monodromy group, generalizing the geometric monodromy group of an isolated plane curve singularity. If the closure of the braid is a knot, we identify the corresponding group with a framed…

Geometric Topology · Mathematics 2025-03-12 Livio Ferretti

For some infinite-dimensional groups $G$ and suitable subgroups $K$ there exists a monoid structure on the set $K\backslash G/K$ of double cosets of $G$ with respect to $K$. In this paper we show that the group $B_\infty$, of the braids…

Representation Theory · Mathematics 2018-12-31 Pablo Gonzalez Pagotto

In the paper we give a survey on braid groups and subjects connected with them. We start with the initial definition, then we give several interpretations as well as several presentations of these groups. Burau presentation for the pure…

Group Theory · Mathematics 2012-02-21 V. V. Vershinin

We consider arrangements of axis-aligned rectangles in the plane. A geometric arrangement specifies the coordinates of all rectangles, while a combinatorial arrangement specifies only the respective intersection type in which each pair of…

Computational Geometry · Computer Science 2015-09-03 Jonathan Klawitter , Martin Nöllenburg , Torsten Ueckerdt

We identify topological symmetric homology as the free $\mathbb{E}_\infty$-algebra on an $\mathbb{E}_1$-algebra and topological braid homology as the free $\mathbb{E}_2$-algebra on an $\mathbb{E}_1$-algebra. In this way, topological…

Algebraic Topology · Mathematics 2026-05-25 Gabriel Angelini-Knoll , David Chan , Teena Gerhardt , Mona Merling , Maximilien Péroux

We show that the fundamental group of the space of ordered affine-equivalent configurations of at least five points in the real plane is isomorphic to the pure braid group modulo its centre. In the case of four points this fundamental group…

Geometric Topology · Mathematics 2009-01-14 Pablo Suárez-Serrato