Speaker:James Cranch (Sheffield)
Venue: Old Combination Room, Trinity College
Time: 20/02/2006 20:30, drinks from 20:15

Sometimes natural geometric questions in low dimensions can be hard. Despite being much harder to visualize, things can be easier with lots of dimensions. There are ways of replacing some difficult low-dimensional problems with easier high-dimensional ones. These ideas lead naturally to the construction of spectra, the abstract objects that many algebraic topologists really spend their time thinking about. This talk will be a quick tour of these ideas, with several pictures.