Local and global coincidence homology classes

Autor(es)

Brasselet, Jean-Paul ^[1] ; Suwa, Tatsuo ^[2]

Afiliação do(s) autor(es)

^[1] CNRS, IML, Campus Luminy, Case 907, F-13288 Marseille 9 - France

^[2] Hokkaido Univ, Dept Math, Sapporo, Hokkaido 0600810 - Japan

• Tipo de documento: Artigo Científico
• Fonte: Journal of Fixed Point Theory and Applications; v. 23, n. 2 MAY 2021.
• Citações Web of Science: 0

Resumo

For two differentiable maps between two manifolds of possibly different dimensions, the local and global coincidence homology classes are introduced and studied by Bisi-Bracci-Izawa-Suwa (2016) in the framework of Cech-de Rham cohomology. We take up the problem from the combinatorial viewpoint and give some finer results, in particular for the local classes. As to the global class, we clarify the relation with the cohomology coincidence class as studied by Biasi-Libardi-Monis (2015). In fact they introduced such a class in the context of several maps and we also consider this case. In particular we define the local homology class and give some explicit expressions. These all together lead to a generalization of the classical Lefschetz coincidence point formula. (AU)

• Processo FAPESP: 15/06697-9 - Classes características e homologia de interseção
• Beneficiário: João Carlos Ferreira Costa
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional