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We show that the loop homology algebras of polyhedral products of the form $(\underline{X},\underline{*})^{\mathcal{K}}$ can be written as a colimit over the flagification of $\mathcal{K}$, and obtain a similar result for the Poincar\'e…

Algebraic Topology · Mathematics 2026-04-29 Lewis Stanton , Fedor Vylegzhanin

The notion of a dual polyhedral product is introduced as a generalization of Hovey's definition of Lusternik-Schnirelmann cocategory. Properties established from homotopy decompositions that relate the based loops on a polyhedral product to…

Algebraic Topology · Mathematics 2018-09-24 Stephen Theriault

In this paper we define an associative stringy product for the twisted orbifold K-theory of a compact, almost complex orbifold X. This product is defined on the twisted K-theory of the inertia orbifold of X, where the twisting gerbe is…

Algebraic Topology · Mathematics 2008-11-21 Alejandro Adem , Yongbin Ruan , Bin Zhang

For certain classes of holomorphic correspondences which are matings between Kleinian groups and polynomials, we prove the existence of pinching deformations, analogous to Maskit's deformations of Kleinian groups which pinch loxodromic…

Dynamical Systems · Mathematics 2007-06-13 Shaun Bullett , Peter Haissinsky

We present some results on n-dimensional compacta lying in n-dimensional products of compacta, in particular, in products of n 1-dimensional compacta. Most of our basic results are proven under the assumption that the compacta X admit…

Geometric Topology · Mathematics 2007-12-21 A. Koyama , J. Krasinkiewicz , S. Spiez

Let $K$ be a finite simplicial complex, and $(X,A)$ be a pair of spaces. The purpose of this article is to study the fundamental group of the polyhedral product denoted $Z_K(X,A)$, which denotes the moment-angle complex of Buchstaber-Panov…

Algebraic Topology · Mathematics 2015-02-23 Mentor Stafa

In this paper, we construct Adams-Hilton models for the polyhedral products of spheres $(\underline{S})^{\mathcal{K}}$ and Davis-Januszkiewicz spaces $\left(\mathbb{C} P^{\infty}\right)^{\mathcal{K}}$. We show that in these cases the…

Algebraic Topology · Mathematics 2022-03-15 Elizaveta Zhuravleva

In this paper we study the classifying spaces of graph products of simplicial groups and connected Hopf algebras over a field, and show that they can be uniformly treated under the framework of polyhedral products. It turns out that these…

Algebraic Topology · Mathematics 2023-11-15 Li Cai

Let $I=(\mathbb{Z}^3,26,6,B)$ be a 3D digital image, let $Q(I)$ be the associated cubical complex and let $\partial Q(I)$ be the subcomplex of $Q(I)$ whose maximal cells are the quadrangles of $Q(I)$ shared by a voxel of $B$ in the…

Computer Vision and Pattern Recognition · Computer Science 2013-07-11 Rocio Gonalez-Diaz , Javier Lamar , Ronald Umble

We construct the crossed product of a C(X)-algebra by an endomorphism, in such a way that it becomes induced by a Hilbert C(X)-bimodule. Furthermore we introduce the notion of C(X)-category, and discuss relationships with crossed products…

Operator Algebras · Mathematics 2007-05-23 Ezio Vasselli

The purpose of this paper is to exhibit fine structure for polyhedral products Z(K;(X,A) and polyhedral smash products $\widehat{Z}(K;(X,A)$. (Moment-angle complexes are special cases for which (X,A) = (D^2,S^1)). There are three main…

Algebraic Topology · Mathematics 2015-11-30 A. Bahri , M. Bendersky , F. R. Cohen , S. Gitler

In this paper we establish a connection between the loop space homology of the generalization of wedge defined by a simplicial complex K (so called polyhedral product) and the homology of certain diagonal arrangements associated with K. We…

Algebraic Topology · Mathematics 2009-01-20 Natalia Dobrinskaya

We describe the Goodwillie calculus of polyhedral products in the case that the fat wedge filtration on the associated real moment-angle complex is trivial. We do this by analysing the behaviour on calculus of the Denham-Suciu fibre…

Algebraic Topology · Mathematics 2024-02-13 Guy Boyde , Niall Taggart

We relate polyhedral products of topological spaces to graph products of groups. The loop homology algebras of polyhedral products are identified with the universal enveloping algebras of the Lie algebras associated with central series of…

Algebraic Topology · Mathematics 2025-01-17 Taras Panov , Temurbek Rahmatullaev

We generalise the fold map for the wedge sum and use this to give a loop space decomposition of topological spaces with a high degree of symmetry. This is applied to polyhedral products to give a loop space decomposition of polyhedral…

Algebraic Topology · Mathematics 2023-11-01 Lewis Stanton

Representation stability in the sense of Church-Farb is concerned with stable properties of representations of sequences of algebraic structures, in particular of groups. We study this notion on objects arising in toric topology. With a…

Algebraic Topology · Mathematics 2020-03-11 Xin Fu , Jelena Grbić

Generalizing a theorem of Macdonald, we show a formula for the mixed Hodge structure on the cohomology of the symmetric products of bounded complexes of mixed Hodge modules by showing the existence of the canonical action of the symmetric…

Algebraic Geometry · Mathematics 2012-04-03 Laurentiu Maxim , Morihiko Saito , Joerg Schuermann

Discrete exterior calculus offers a coordinate--free discretization of exterior calculus especially suited for computations on meshes over curved manifolds. The discretization of the wedge product, that would be compatible with discrete…

Algebraic Topology · Mathematics 2026-05-12 Lenka Ptackova

We introduce a tree structure for the iterates of symmetric bimodal maps and identify a subset which we prove to be isomorphic to the family of unimodal maps. This subset is used as a second factor for a $\ast $-product that we define in…

Dynamical Systems · Mathematics 2007-05-23 J. P. Lampreia , R. Severino , J. Sousa Ramos

In this paper we study the topological structure of moment-angle complexes $\mathcal{Z_K}$. We consider two classes of simplicial complexes. The first class $B_{\Delta}$ consists of simplicial complexes $\mathcal{K}$ for which…

Algebraic Topology · Mathematics 2018-12-27 Semyon Abramyan