A classification of cohomology transfers for ramified covering maps

• Autorzy: Marcelo A. Aguilar , Carlos Prieto
• Języki publikacji: EN

Abstrakty

EN

We construct a cohomology transfer for n-fold ramified covering maps. Then we define a very general concept of transfer for ramified covering maps and prove a classification theorem for such transfers. This generalizes Roush's classification of transfers for n-fold ordinary covering maps. We characterize those representable cofunctors which admit a family of transfers for ramified covering maps that have two naturality properties, as well as normalization and stability. This is analogous to Roush's characterization theorem for the case of ordinary covering maps. Finally, we classify those families of transfers and construct some examples. In particular, we extend the determinant function in GL(k,ℂ) to a transfer.

Kategorie tematyczne

• 57M10: Covering spaces
• 55Q05: Homotopy groups, general; sets of homotopy classes
• 57M12: Special coverings, e.g. branched
• 55R12: Transfer

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Fundamenta Mathematicae
• Rocznik: 2006
• Tom: 189
• Numer: 1
• Strony: 1-25

Daty

wydano

2006

Twórcy

autor

Marcelo A. Aguilar

• Instituto de Matemáticas, UNAM, 04510 México, D.F., Mexico

autor

Carlos Prieto

• Instituto de Matemáticas, UNAM, 04510 México, D.F. Mexico

Identyfikatory

DOI

10.4064/fm189-1-1