Subdivision of Simplicial Complex

Fuente: arXiv
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Main Author: Mishra, Sanjay
Format: Preprint
Published: 2025
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author Mishra, Sanjay
author_facet Mishra, Sanjay
contents This paper provides a self-contained exploration of subdivisions of simplicial complexes, with emphasis on barycentric subdivision. We present formal definitions of subdivisions, show how the realization of a complex is preserved under subdivision, and illustrate these concepts with explicit examples and detailed diagrams. The paper develops the general method of constructing subdivisions by starring from interior points, leading to the standard barycentric and derived subdivisions. We give precise statements and proofs demonstrating that repeated barycentric subdivision reduces the mesh below any prescribed scale, ensuring compatibility with given metrics and enabling applications such as simplicial approximation and homological analysis. Examples and TikZ illustrations clarify the structure of iterated subdivisions for finite complexes, highlighting their geometric and topological properties.
format Preprint
id arxiv_https___arxiv_org_abs_2511_17096
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Subdivision of Simplicial Complex
Mishra, Sanjay
General Topology
55U05 and 55U10
This paper provides a self-contained exploration of subdivisions of simplicial complexes, with emphasis on barycentric subdivision. We present formal definitions of subdivisions, show how the realization of a complex is preserved under subdivision, and illustrate these concepts with explicit examples and detailed diagrams. The paper develops the general method of constructing subdivisions by starring from interior points, leading to the standard barycentric and derived subdivisions. We give precise statements and proofs demonstrating that repeated barycentric subdivision reduces the mesh below any prescribed scale, ensuring compatibility with given metrics and enabling applications such as simplicial approximation and homological analysis. Examples and TikZ illustrations clarify the structure of iterated subdivisions for finite complexes, highlighting their geometric and topological properties.
title Subdivision of Simplicial Complex
topic General Topology
55U05 and 55U10
url https://arxiv.org/abs/2511.17096