SMS scnews item created by Gareth White at Tue 8 Sep 2009 1804
Type: Seminar
Distribution: World
Expiry: 9 Sep 2009
Calendar1: 9 Sep 2009 1300-1400
CalLoc1: Carslaw 350
Auth: garethw@asti.maths.usyd.edu.au

# SUMS Meeting: Sun -- The Poincaré Conjecture

Hello everybody,

SUMS is returning to weekly talks after taking a break last week to run the
Puzzle Hunt. Speaking of which, the Hunt was amazing! Easily our biggest
event of the year so far. For those that entered teams, thank you so much
for being a part of something that we really put a lot of time and effort
into, it means a great deal to us to see so many participants (254
teams!!!!).

With that being said, this week we have a interesting talk by another
special speaker. Jonathan Sun has taken time off from working on his PhD at
the University of Chicago, to talk about the Poincaré Conjecture. As you may
well know, the Poincaré Conjecture is one of the Millenium Problems with a
million dollar prize offered by the CLAY Institute for its proof (or
disproof), much like the P=NP Problem of which there was a SUMS talk last
semester, however in this case the Poincaré Conjecture has been solved!

For those wondering, the Poincaré Conjecture states that every simply
connected, closed 3-manifold is homeomorphic to the 3-sphere. Jonathan will
explain what this actually means, talk about its history and background, as
well as how it was proved, which is sure to provide for a fascinating talk.

Talk: The Poincaré Conjecture
Speaker: Jonathan Sun
Location: Carslaw 350
Date/Time: Wednesday September 9, 1-2pm

I hope to see you there! BTW, stay tuned for more exciting events coming up!

SUMS President


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