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Artículo
Cups products in Z2-cohomology of 3D polyhedral complexes
dc.creator | González Díaz, Rocío | |
dc.creator | Lamar León, Javier | |
dc.creator | Umble, Ronald | |
dc.date.accessioned | 2015-11-18T11:03:06Z | |
dc.date.available | 2015-11-18T11:03:06Z | |
dc.date.issued | 2012 | |
dc.identifier.uri | http://hdl.handle.net/11441/30808 | |
dc.description.abstract | Let I=(Z3,26,6,B) be a 3D digital image, let Q(I) be the associated cubical complex and let ∂Q(I) be the subcomplex of Q(I) whose maximal cells are the quadrangles of Q(I) shared by a voxel of B in the foreground -- the object under study -- and by a voxel of Z3∖B in the background -- the ambient space. We show how to simplify the combinatorial structure of ∂Q(I) and obtain a 3D polyhedral complex P(I) homeomorphic to ∂Q(I) but with fewer cells. We introduce an algorithm that computes cup products on H∗(P(I);Z2) directly from the combinatorics. The computational method introduced here can be effectively applied to any polyhedral complex embedded in R3. | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.relation.ispartof | The Computing Research Repository (CoRR), abs/1207.2346 (2012) | es |
dc.rights | Atribución-NoComercial-CompartirIgual 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | * |
dc.subject | Computer Vision and Pattern Recognition | es |
dc.title | Cups products in Z2-cohomology of 3D polyhedral complexes | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Matemática Aplicada I | es |
dc.identifier.idus | https://idus.us.es/xmlui/handle/11441/30808 |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Cups products in Z.pdf | 1.033Mb | [PDF] | Ver/ | |