Startseite Mathematik The homology of simplicial complements and the cohomology of polyhedral products
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The homology of simplicial complements and the cohomology of polyhedral products

  • Xiangjun Wang EMAIL logo und Qibing Zheng
Veröffentlicht/Copyright: 6. September 2013

Abstract

In this paper, we define a simplicial complement ={σ1,σ2,...,σs} to be a sequence of subsets of [m] and prove that the simplicial complement ℙ corresponds to an unique simplicial complex K with vertices in [m]. Then, we define the homology algebra of a simplicial complement Hi,σ(Λ*,*[],d) over a principal ideal domain 𝐤 and prove that H*,*(Λ[],d) is isomorphic to the Tor-algebra of the corresponding face ring 𝐤(K) by the Taylor resolution. This gives an algorithm for the cohomology algebraic structure of the moment-angle complex by the isomorphism H*(𝒵K,𝐤) Tor *,*𝐤[𝐱](𝐤(K),𝐤). As applications of the simplicial complement, we also give methods to compute the cohomology of the moment-angle complex corresponding to a link and starlinkKσ, starKσ and the cohomology modules of the polyhedral products as well.

Funding source: NSFC

Award Identifier / Grant number: 11071125

Funding source: NSFC

Award Identifier / Grant number: 11261062

Funding source: SRFDP

The authors are grateful to Z. Lü for his introduction of this topic. The authors are indebted to V. M. Buchstaber for his comments and suggestions, especially for the name of definition simplicial complement which is originally called partition. The authors also thank S. Gitler for his helpful suggestions.

Received: 2012-12-3
Revised: 2013-8-5
Published Online: 2013-9-6
Published in Print: 2015-7-1

© 2015 by De Gruyter

Artikel in diesem Heft

  1. Frontmatter
  2. Notes on occupation time fluctuations of binary branching particle systems
  3. On the sum of two integral squares in certain quadratic fields
  4. A Cesàro average of Goldbach numbers
  5. Groups described by element numbers
  6. The second main theorem for entire curves into Hilbert modular surfaces
  7. L norms of holomorphic modular forms in the case of compact quotient
  8. SU(2)-Donaldson invariants of the complex projective plane
  9. Pairs of diagonal quadratic forms and linear correlations among sums of two squares
  10. The subelliptic heat kernel on the three-dimensional solvable Lie groups
  11. Lp boundedness of the commutators of Marcinkiewicz integrals with rough kernels
  12. Circle-valued Morse theory for complex hyperplane arrangements
  13. Atomic Hp spaces and their duals on open subsets of ℝd
  14. Locally contractible coset spaces
  15. L2 and Hp boundedness of strongly singular operators and oscillating operators on Heisenberg groups
  16. Finite time blow-up for semilinear wave equations with variable coefficients
  17. Intertwining operators of irreducible representations for exponential solvable Lie groups
  18. Artin's conjecture and systems of diagonal equations
  19. The homology of simplicial complements and the cohomology of polyhedral products
  20. Multivariate spectral multipliers for the Dunkl transform and the Dunkl harmonic oscillator
  21. Multilinear generalized Radon transforms and point configurations
  22. On ratios of Petersson norms for Yoshida lifts
  23. K-groups for rings of finite Cohen–Macaulay type
  24. Character degree sums of finite groups
  25. Tame Fréchet submanifolds of co-Banach type
  26. Weighted norm inequalities for Schrödinger type operators
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