RT Journal Article
T1 Multifibrations. A class of shape fibrations with the path lifting property
A1 Giraldo, A.
A1 Rodríguez Sanjurjo, José Manuel
AB In this paper we introduce a class of maps possessing a multivalued homotopy lifting property with respect to every topological space. We call these maps multifibrations and they represent a formally stronger concept than that of shape fibration. Multifibrations have the interesting property of being characterized in a completely intrinsic. way by a path lifting property involving only the total and the base space of the fibration. We also show that multifibrations land also, with some restrictions, shape fibrations) have a lifting property for homotopies of fine multivalued maps. This implies, when the spaces considered are metric compacta, that the possibility of lifting a fine multivalued map is a property of the corresponding strong shape morphism and not of the particular map considered.
PB Mathematical Institute of the Academy of Sciences of the Czech Republic
SN 1572-9141
YR 2001
FD 2001
LK https://hdl.handle.net/20.500.14352/57655
UL https://hdl.handle.net/20.500.14352/57655
LA eng
DS Docta Complutense
RD 20 abr 2025