Date:	Mon, November 9, 2009
Time:	17:15
Place:	Research II Lecture Hall

Abstract: Many theorems about finite graphs become, at first sight, false in the infinite case. Diestel proposed using topological concepts in order to reinterpret classical graph-theoretical concepts, like, e.g., that of a path or a cycle, so as to let such theorems carry over to infinite graphs. This led to a surprisingly successful project, not only producing many such generalisations, but also oppening new directions and suggesting connections to other fields. I am going to give an elementary introduction to this field.