On the relationships between shape properties of subcompacta of and homotopy properties of their complements
The paper contains a survey of various results concerning the Schauder Fixed Point Theorem for metric spaces both in single-valued and multi-valued cases. A number of open problems is formulated.
Let be the universal connection on the bundle . Given a principal -bundle with connection , we determine the homotopy type of the space of maps of into such that is isomorphic to . Here denotes pull-back.
Si esamina la successione spettrale per la -coomologia dello spazio totale di un fibrato olomorfo nel caso in cui le fibre siano varietà di Stein.
In this paper we investigate the conditions for the suspension homomorphism is onto or an isomorphism.