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Bibliographic Details
Main Author: Komatsu, Shuma
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2510.26176
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author Komatsu, Shuma
author_facet Komatsu, Shuma
contents In the work of C. Donovan and N. A. Scoville, the homotopy type of the Morse complex of the extended star graph which is obtained as the one-point union of n paths of length 2 was determined by using star clusters and Cluster Lemma. In this paper, we determine the homotopy type of the Morse complex of extended star graph consisting of a path of length 1 and n paths of length 2 by using strong collapses and Hasse diagram. Furthermore, we compute the homotopy type of the graph obtained by attaching the center vertices of two extended star graphs to different endpoints of a path by using star clusters and the Cluster Lemma.
format Preprint
id arxiv_https___arxiv_org_abs_2510_26176
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Morse complex of the wedge of two extended star graphs and a path
Komatsu, Shuma
Combinatorics
In the work of C. Donovan and N. A. Scoville, the homotopy type of the Morse complex of the extended star graph which is obtained as the one-point union of n paths of length 2 was determined by using star clusters and Cluster Lemma. In this paper, we determine the homotopy type of the Morse complex of extended star graph consisting of a path of length 1 and n paths of length 2 by using strong collapses and Hasse diagram. Furthermore, we compute the homotopy type of the graph obtained by attaching the center vertices of two extended star graphs to different endpoints of a path by using star clusters and the Cluster Lemma.
title The Morse complex of the wedge of two extended star graphs and a path
topic Combinatorics
url https://arxiv.org/abs/2510.26176