Results 11 to 20 of about 6,044,782 (145)

Discrete Morse theory and classifying spaces [PDF]

open access: yes, 2018
The aim of this paper is to develop a refinement of Forman's discrete Morse theory. To an acyclic partial matching ΞΌ on a finite regular CW complex X, Forman introduced a discrete analogue of gradient flows.
Tamaki, D   +4 more
core   +1 more source

Discrete microlocal Morse theory [PDF]

open access: yes
We establish several results combining discrete Morse theory and microlocal sheaf theory in the setting of finite posets and simplicial complexes. Our primary tool is a computationally tractable description of the bounded derived category of sheaves on a
Draganov, Ondrej ; https://orcid.org/   +1 more
core   +4 more sources

Discrete Morse Theory Algorithms [PDF]

open access: yes, 2017
Discrete Morse Theory (DMT) is the discrete version of Morse Theory and has been introduced by Robin Forman. Discrete Morse Theory provides a powerful tool for the analysis of topological spaces.
Nazem, Soroosh
core   +1 more source

Generalizations of discrete Morse theory [PDF]

open access: yes, 2018
We generalize Forman’s discrete Morse theory, on one end by developing a discrete analogue of Morse-Bott theory for CW complexes, motivated by Morse-Bott theory in the smooth setting. On the other, motivated by J-N.
Yaptieu Djeungue, Odette Sylvia   +1 more
core   +2 more sources

The $q=-1$ phenomenon for bounded (plane) partitions via homology concentration [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
Algebraic complexes whose "faces'' are indexed by partitions and plane partitions are introduced, and their homology is proven to be concentrated in even dimensions with homology basis indexed by fixed points of an involution, thereby explaining ...
P. Hersh, J. Shareshian, D. Stanton
doaj   +1 more source

Discrete Morse Theory and Persistent Homology [PDF]

open access: yes
In this paper we explain at the theoretical level how discrete Morse theory can provide us a more efficient approach to compute persistent homologies.
Lai, Chung-Ping
core   +6 more sources

The MΓΆbius function of generalized subword order [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
Let $P$ be a poset and let $P^*$ be the set of all finite length words over $P$. Generalized subword order is the partial order on $P^*$ obtained by letting $u≀ w$ if and only if there is a subword $u'$ of $w$ having the same length as $u$ such that ...
Peter R. W. McNamara, Bruce E. Sagan
doaj   +1 more source

Topology-based individual tree segmentation for automated processing of terrestrial laser scanning point clouds

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
Terrestrial laser scanning (TLS) is a ground-based approach to rapidly acquire 3D point clouds via Light Detection and Ranging (LiDAR) technologies. Quantifying tree-scale structure from TLS point clouds requires segmentation, yet there is a lack of ...
Xin Xu   +4 more
doaj   +1 more source

Existence and Multiplicity of Solutions for Discrete Nonlinear Two-Point Boundary Value Problems

open access: yesDiscrete Dynamics in Nature and Society, 2011
By using Morse theory, the critical point theory, and the character of 𝐾1/2, we consider the existence and multiplicity results of solutions to the following discrete nonlinear two-point boundary value problem βˆ’Ξ”2π‘₯(π‘˜βˆ’1)=𝑓(π‘˜,π‘₯(π‘˜)),π‘˜βˆˆβ„€(1,𝑇) subject to π‘₯(0)=
Jianmin Guo, Caixia Guo
doaj   +1 more source

Topology of matching complexes of complete graphs via discrete Morse theory [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
Bouc (1992) first studied the topological properties of $M_n$, the matching complex of the complete graph of order $n$, in connection with Brown complexes and Quillen complexes. Bj\"{o}rner et al. (1994) showed that $M_n$ is homotopically $(\nu_n-1)$
Anupam Mondal   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy