Seminar Calendar
for Graduate Student Topology events the next 12 months of Saturday, August 1, 2009.

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More information on this calendar program is available.
Questions regarding events or the calendar should be directed to Tori Corkery. 
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Tuesday, September 8, 2009

Graduate Student Topology and Geometry Seminar
3:00 pm   in 347 AH,  Tuesday, September 8, 2009
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Submitted by reldred2.
Rosona Eldred (UIUC Math)
Topological Defects in Ordered Systems
Abstract: Ordered systems, such as a crystal lattice, can have what are called 'topological defects'. We'll discuss order parameter spaces for crystals and magnets, then how the lower homotopy groups of the spaces are used to classify the defects. This is intended to be a general talk: there will be lots of pictures and no background in physics or topology assumed.

Tuesday, September 22, 2009

Graduate Student Topology and Geometry Seminar
3:00 pm   in 347 Altgeld Hall,  Tuesday, September 22, 2009
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Submitted by reldred2.
Nat Stapleton (UIUC Math)
Abstracting Monoids
Abstract: We look at generalizations of monoids. Particularly we look at monoidal categories and their generalizations to monoidal infinity categories. As an example we present the monoidal infinity category of stable presentable infinity categories with colimit preserving functors and notice that it's unit is the infinity category of spectra with smash product.