UW-PIMS Mathematics Colloquium

Sponsored by the UW Department of Mathematics and the Pacific Institute for the Mathematical Sciences.

October 21, 2016 at 2:30pm
MEB 246
Frank Farris
Santa Clara University
Spherical Harmonics for Cosmology and Mathematical Art

One likely model for the shape of the universe is the Poincaré dodecahedral space, which is a quotient of the 3-sphere by the action of the icosahedral group. To help cosmologists, Jeff Weeks adopted a method originally proposed by Klein to find all the spherical harmonics invariant under the icosahedral and other polyhedral groups. In trying to connect the method to polyhedrally-invariant functions on the 2-sphere, we discovered an interesting connection to self-mappings of the 2-sphere, opening the door to a new technique for mathematical art. (Joint work with Jeff Weeks.)

November 4, 2016 at 2:30pm
MEB 246
Steven Lalley
University of Chicago


November 10, 2016 at 2:30pm
MEB 246
Renzo Cavalieri
Colorado State University


November 18, 2016 at 2:30pm
MEB 246
Alex Wright
Stanford University


Colloquium Video Archive

Archives from Previous Years
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Archive of 1999-2000 colloquia   Archive of 1998-1999 colloquia

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Last modified: October 18, 2016, 11:53

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