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Related papers: Higher Whitehead products in toric topology

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The fundamental Davis-Januszkiewicz construction of toric manifolds is reinterpreted in order to allow for generalization. Applications involve the simplicial wedge $J$-construction and Ayzenberg's recent identities arising from composed…

Algebraic Topology · Mathematics 2013-11-19 A. Bahri , M. Bendersky , F. R. Cohen , S. Gitler

For a commutative ring $\mathbf k$ with unit, we describe and study various differential graded $\mathbf k$-modules and $ \mathbf k$-algebras which are models for the cohomology of polyhedral products $(\underline{CX},\underline X)^K$.…

Algebraic Topology · Mathematics 2025-01-23 Martin Bendersky , Jelena Grbić

Topological methods have emerged as valuable tools for analyzing the structural properties of directed graphs, particularly connectome data in computational neuroscience. This paper investigates the construction of topological spaces from…

Algebraic Topology · Mathematics 2026-05-04 Pedro Conceição

The matching complex $\mathsf{M}(G)$ of a graph $G$ is a simplicial complex whose simplices are matchings in $G$. These complexes appear in various places and found applications in many areas of mathematics including computational geometry,…

Combinatorics · Mathematics 2026-04-24 Raju Kumar Gupta , Sourav Sarkar , Sagar S. Sawant , Samir Shukla

Fan, Chen, Ma and Wang constructed a moment-angle manifold $Z_K$ whose cohomology ring is isomorphic to that of a connected sum of sphere products with one product of three spheres. In this paper, we show that they are actually…

Algebraic Topology · Mathematics 2016-08-25 Kouyemon Iriye

It was conjectured by Goyal, Shukla and Singh that the independence complex of the categorical product $K_2\times K_3\times K_n$ has the homotopy type of a wedge of $(n-1)(3n-2)$ spheres of dimension $3$. Here we prove this conjecture by…

Algebraic Topology · Mathematics 2025-07-29 Omar Antolín Camarena , Andrés Carnero Bravo

We prove that the integral cohomology algebra of the moment-angle complex Z_K, or of the corresponding coordinate subspace arrangement complement U(K), is isomorphic to the Tor-algebra of the face ring Z[K] of simplicial complex K.

Algebraic Topology · Mathematics 2007-05-23 Ilia V. Baskakov , Victor M. Buchstaber , Taras E. Panov

We construct "higher" motion planners for automated systems whose space of states are homotopy equivalent to a polyhedral product space $Z(K,\{(S^{k_i},\star)\})$, e.g. robot arms with restrictions on the possible combinations of…

Algebraic Topology · Mathematics 2015-03-27 Jesús González , Bárbara Gutiérrez , Sergey Yuzvinsky

We establish a connection between continuous K-theory and integral cohomology of rigid spaces. Given a rigid analytic space over a complete discretely valued field, its continuous K-groups vanish in degrees below the negative of the…

K-Theory and Homology · Mathematics 2024-03-05 Christian Dahlhausen

This paper studies the map between polyhedral products $\mathcal{Z}_K(C\underline{X},\underline{X})\to\mathcal{Z}_K(\Sigma\underline{X},*)$ induced from the pinch maps $(CX_i,X_i)\to(\Sigma X_i,*)$, which is the higher order Whitehead…

Algebraic Topology · Mathematics 2018-07-03 Kouyemon Iriye , Daisuke Kishimoto

We describe Bott towers as sequences of toric manifolds M^k, and identify the omniorientations which correspond to their original construction as toric varieties. We show that the suspension of M^k is homotopy equivalent to a wedge of Thom…

Algebraic Topology · Mathematics 2007-05-23 Yusuf Civan , Nigel Ray

Multisymplectic geometry admits an operation that has no counterpart in symplectic geometry, namely, taking the product of two multisymplectic manifolds endowed with the wedge product of the multisymplectic forms. We show that there is an…

Differential Geometry · Mathematics 2016-11-30 C. S. Shahbazi , Marco Zambon

For an arbitrary simplicial complex K, Davis and Januszkiewicz have defined a family of homotopy equivalent CW-complexes whose integral cohomology rings are isomorphic to the Stanley-Reisner algebra of K. Subsequently, Buchstaber and Panov…

Algebraic Topology · Mathematics 2014-10-01 Dietrich Notbohm , Nigel Ray

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 review the interpretation of Whitehead products in homotopy theory as an entanglement of topological defects in ordered media.

Soft Condensed Matter · Physics 2023-12-04 Gareth P. Alexander , Randall D. Kamien

In this article we continue our investigation of the Derived Equivalences over noetherian quasi-projective schemes $X$, over affine schemes $\spec{A}$. For integers $k\geq 0$, let $C{\mathbb M}^k(X)$ denote the category of coherent…

Commutative Algebra · Mathematics 2015-09-10 Satya Mandal

Denham, Suciu and Panov, Ray computed ranks of homotopy groups and Poincar\'e series of a moment-angle-complex $\mathcal Z(\mathcal K$) / Davis-Januzskiewicz space $DJ(\mathcal K)$ associated to a flag simplicial complex $\mathcal K$. In…

Combinatorics · Mathematics 2016-10-14 Yury Ustinovskiy

We extend the construction of moment-angle complexes to simplicial posets by associating a certain T^m-space Z_S to an arbitrary simplicial poset S on m vertices. Face rings Z[S] of simplicial posets generalise those of simplicial…

Algebraic Topology · Mathematics 2011-05-17 Zhi Lu , Taras Panov

Let $\mathbf{k}$ be the field $\mathbb{F}_p$ or the ring $\mathbb{Z}$. We study combinatorial and topological properties of the universal simplicial complexes $X(\mathbf{k}^n)$ and $K(\mathbf{k}^n)$ whose simplices are certain unimodular…

Combinatorics · Mathematics 2020-11-24 Djordje Baralic , Jelena Grbic , Ales Vavpetic , Aleksandar Vucic

Let $t$ be a positive integer. Following work of D. M. Davis, we study the topology of complex-projective product spaces, i.e. quotients of cartesian products of odd dimensional spheres by the diagonal $S^1$-action, and of the $t$-torsion…

Algebraic Topology · Mathematics 2013-11-07 Jesus Gonzalez , Maurilio Velasco