Local-to-global principles for classifying spaces

7 May 2007
Jesper Grodal
&nbsp;<font SIZE="2"> In this talk I will show how one can sometimes &quot;uncomplete&quot; the p-completed classifying space of a finite group, to obtain the original (non-completed) classifying space, and hence the original finite group. This &quot;uncompletion&quot; process is closely related to well-known local-to-global questions in group theory, such as the classification of finite simple groups. The approach goes via the theory of p-local finite groups. This talk is a report on joint work with Bob Oliver. </font> &nbsp;