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JUST A REMINDER IF YOU HAVE NOT SIGNED UP TO MEET THE SPEAKER PLEASE DO SO -- Speaker: Ursula Whitcher, Associate Editor at Mathematical Reviews (http://www-personal.umich.edu/~uaw/<http://www-personal.umich.edu/%7Euaw/>) General abstract: String theory predicts that the universe should have six extra dimensions. But what is the shape of these extra dimensions? It turns out that more than one shape may produce the same physical consequences. This observation astonished mathematicians and led to the field of math and physics research known as "mirror symmetry". We'll describe how to use special polygons and polyhedra to write equations for the extra dimensions and their "mirror" counterparts. The technical version of the abstract would be: I'll introduce Batyrev's mirror symmetry construction via reflexive polytopes, emphasizing elementary techniques and intuition. ---- Instructions for sign up --- > If you want to meet with the speaker you will need to log in to the scheduling system. Everyone will use the same user name and password. Go to this website to log in: > > http://confrooms.pa.msu.edu/cgi-bin/cal?Op=UserLogin (bookmark this page). > Username: meetspeaker (all lowercase) > Password: colloq (all lowercase) > > NOTE: if you are coming in from NON‐PA/NSCL IP address you will have to enter the above name and password twice (once in a pop‐up window to access the site, and then again on main screen to log in). If you are coming in from PA/NSCL IP address you will only need to enter once, on the main screen. > > Then choose the speaker meeting schedule you want to sign up on (SatE). > Please be sure to navigate to the correct day on the calendar. From: Shawna Prater [mailto:[log in to unmask]] Sent: Monday, February 13, 2017 7:36 AM To: [log in to unmask] <[log in to unmask]> Cc: Sci at the Edge ([log in to unmask]) <[log in to unmask]> Subject: Science at the Edge Speaker February 17th Friday Science at the Edge Seminar February 17, 2017 - Friday 11:30 a.m. room 1400 Biomedical Physical Sciences Bldg. Mirror, mirror: String Theory and Pairs of Polyhedra Speaker: Ursula Whitcher, Associate Editor at Mathematical Reviews (http://www-personal.umich.edu/~uaw/<http://www-personal.umich.edu/%7Euaw/>) General abstract: String theory predicts that the universe should have six extra dimensions. But what is the shape of these extra dimensions? It turns out that more than one shape may produce the same physical consequences. This observation astonished mathematicians and led to the field of math and physics research known as "mirror symmetry". We'll describe how to use special polygons and polyhedra to write equations for the extra dimensions and their "mirror" counterparts. Kendall Mahn Host Michigan State University Dept. Physics and Astronomy Shawna Prater-CHRS Secretary for Astrophysics/CMP Theory POC for Physics SATE seminars/COLLOQUIUM 3261BPS, 567 Wilson Road East Lansing, MI 48824-6405 [log in to unmask]<mailto:[log in to unmask]> fax 517.432.8802 [msu]