Path:  Home   >  On Alexander's Subbase Lemma
 
On Alexander's Subbase Lemma
 
 
Description:  Alexander's Subbase Lemma (due to James Waddell Alexander II) is a classical result of topology stating that a topological space X is compact provided that X is compact with respect to a subbasis, that is, every subbasic cover of X has a finite subcover. In this talk we will give a very simple convergence-theoretic argument which, under some conditions, applies not only to compactness but also to core-compactness. We take this as a starting point to a study of the Vietoris construction of dualisable spaces, and of exponentiable spaces.
Date:  2013-01-15
Start Time:   15:00
Speaker:  Dirk Hofmann (U. Aveiro)
Institution:  Universidade de Aveiro
Place:  Sala 5.5
Research Groups: -Algebra, Logic and Topology
See more:   <Main>  
 
     
© 2012 Centre for Mathematics, University of Coimbra, funded by

Science and Technology Foundation

Powered by: rdOnWeb v1.4 | technical support