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Diagonal approximations on finite regular CW complexes: Theory, implementation, and applications

Alzobydi, Khaled
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https://hdl.handle.net/10379/19069
 https://doi.org/10.13025/29863
Publication Date
2025-08-11
Keywords
CW complexes, Diagonal approximations, Mathematics, Mathematical and Statistical Sciences
Type
doctoral thesis
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Abstract
We describe an algorithm for recursively constructing diagonal approximations on finite regular CW-complexes where the closure of each cell can be explicitly collapsed to a point. The algorithm is based on the standard proof of the acyclic carrier theorem and is made constructive through the use of explicit contracting homotopies. We compare the algorithm’s output with existing diagonal approximations for the families of simplices, cubes, associahedra, and permutahedra.
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University of Galway
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CC BY-NC-ND
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University of Galway Theses (PhD Theses)