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We give a homotopy equivalence for the loop space of the moment-angle complex associated with a simplicial complex formed by the polyhedral join operation, and give necessary conditions for this loop space to be a finite type product of…

Algebraic Topology · Mathematics 2026-01-14 Briony Eldridge

We study the homotopy theory of polyhedral products associated to a combinatorial generalisation of manifolds known as pseudomanifolds. As special cases, we show that loop spaces of moment-angle manifolds associated to triangulations of…

Algebraic Topology · Mathematics 2025-06-04 Lewis Stanton , Stephen Theriault

A polyhedral product is a natural subspace of a Cartesian product that is specified by a simplicial complex. The modern formalism arose as a generalization of the spaces known as moment-angle complexes which were developed within the…

Algebraic Topology · Mathematics 2024-08-27 A. Bahri , M. Bendersky , F. R. Cohen

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

A panel structure on a topological space is just a locally finite family of closed subspaces. A space together with a panel structure is called a space with faces. In this paper, we introduce a notion of polyhedral product over a space with…

Algebraic Topology · Mathematics 2024-12-17 Li Yu

In this paper we give a necessary and sufficient condition for a (real) moment-angle complex to be a topological manifold. The cup and cap products in a real moment-angle manifold are studied: the Poincar\'{e} duality via cap products is…

Algebraic Topology · Mathematics 2015-11-03 Li Cai

This article gives a natural decomposition of the suspension of generalized moment-angle complexes or {\it partial product spaces} which arise as {\it polyhedral product functors} described below. In the special case of the complements of…

Algebraic Topology · Mathematics 2008-12-09 A. Bahri , M. Bendersky , F. R. Cohen , S. Gitler

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 show that the loop space of a moment-angle complex associated to a $2$-dimensional simplicial complex decomposes as a finite type product of spheres, loops on spheres, and certain indecomposable spaces which appear in the loop space…

Algebraic Topology · Mathematics 2025-03-11 Lewis Stanton

We introduce polyhedral products in an $\infty$-categorical setting. We generalize a splitting result by Bahri, Bendersky, Cohen, and Gitler that determines the stable homotopy type of the a polyhedral product. We also introduce a motivic…

Algebraic Topology · Mathematics 2024-08-28 William Hornslien

We prove a conjecture of Bahri, Bendersky, Cohen and Gitler: if K is a shifted simplicial complex on n vertices, X_1,..., X_n are spaces and CX_i is the cone on X_i, then the polyhedral product determined by K and the pairs (CX_i,X_i) is…

Algebraic Topology · Mathematics 2011-10-21 Jelena Grbic , Stephen Theriault

We prove that the loop space of the moment-angle complex associated to the $k$-skeleton of a flag complex belongs to the class $\mathcal{P}$ of spaces homotopy equivalent to a finite type product of spheres and loops on simply connected…

Algebraic Topology · Mathematics 2024-02-20 Lewis Stanton

We prove that certain conditions on multigraded Betti numbers of a simplicial complex $K$ imply existence of a higher Massey product in cohomology of a moment-angle-complex $\mathcal Z_K$, which contains a unique element (a strictly defined…

Algebraic Topology · Mathematics 2018-08-29 Ivan Limonchenko

This paper investigates the moment-angle manifolds whose cohomology ring is isomorphic to that of a connected sum of sphere products. We first give a example of moment-angle manifolds corresponding to a 4 dimentional simplicial polytope. It…

Algebraic Topology · Mathematics 2014-12-30 Feifei Fan , Liman Chen , Jun Ma , Xiangjun Wang

We study the homotopy types of moment-angle complexes, or equivalently, of complements of coordinate subspace arrangements. The overall aim is to identify the simplicial complexes K for which the corresponding moment-angle complex Z_K has…

Algebraic Topology · Mathematics 2016-03-03 Jelena Grbic , Taras Panov , Stephen Theriault , Jie Wu

We show that a moment-angle manifold associated to a neighbourly triangulation of an odd dimensional sphere is homotopy equivalent to a connected sum of products of two spheres, resolving a problem of Buchstaber and Panov. The methods are…

Algebraic Topology · Mathematics 2026-05-05 Amaranta Membrillo Solis , Stephen Theriault

A simple polytope $P$ is called $B$-rigid if its combinatorial type is determined by the cohomology ring of the moment-angle manifold $\mathcal{Z}_P$ over $P$. We show that any tensor product decomposition of this cohomology ring is…

Algebraic Topology · Mathematics 2022-05-03 Steven Amelotte , Benjamin Briggs

This paper aims to find the most general combinatorial conditions under which a moment-angle complex $(D^2,S^1)^K$ is a co-$H$-space, thus splitting unstably in terms of its full subcomplexes. In this way we study to which extent the…

Algebraic Topology · Mathematics 2017-05-23 Piotr Beben , Jelena Grbić

Any finite simplicial complex K and a partition of the vertex set of K determines a canonical quotient space of the moment-angle complex of K. We prove that the cohomology groups of such a space can be computed via some Hochster's type…

Algebraic Topology · Mathematics 2019-02-01 Li Yu

As part of various obstruction theories, non-trivial Massey products have been studied in symplectic and complex geometry, commutative algebra and topology for a long time. We introduce a general approach to constructing non-trivial Massey…

Algebraic Topology · Mathematics 2021-06-15 Jelena Grbić , Abigail Linton
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