Undergraduate Seminar


Representation matrices in normed division algebras and Hurwitz matrices

by Junjiajia Long | University of Toronto
Time: 16:00 — 18:00  (Thursday, Feb. 10, 2011)
Location: BA6183, Bahen Center, 40 St. George St.
This is one of eight talks in a series called SUMS OF SQUARES EVERYWHERE, to be presented by some undergraduate students of Mathematics Department, University of Toronto.

Dates in this series

· Thursday, Jan. 27, 2011: On Fermat's Polygonal Number Theorem: From Geometry to numbers (Aleksandr Gontcharov)
· Thursday, Feb. 03, 2011: Positive Symmetric Even Sextic Forms (Joo Kim)
· Thursday, Feb. 10, 2011: Representation matrices in normed division algebras and Hurwitz matrices (Junjiajia Long)
· Thursday, Feb. 17, 2011: Division alegbras, the Hurwitz Theorem and parallelizability of spheres (Sergei Segatov)
· Thursday, Mar. 03, 2011: Integers presented as sum of 2, 3, 4 squares (Ming Xiao)
· Thursday, Mar. 10, 2011: A geometrical treatment of the completely positive matrices (Qiao Zhou)
· Thursday, Mar. 17, 2011: Positivity and sums of squares: Hilbert's 17th problem (Marina Brin)
· Thursday, Mar. 24, 2011: Sums of two squares (Richard Cerezo)