Events for 02/18/2021 from all calendars
Spectral Theory Reading Seminar
Time: 3:00PM - 4:00PM
Speaker: Cancelled due to the power outage in TX
Title:
Student/Postdoc Working Geometry Seminar
Time: 9:30PM - 10:30PM
Location: zoom
Speaker: JM Landsberg, TAMU
Title: Gauss maps and secant varieties via differential geometry I
Abstract: This will be a sequence of 2 expository talks on Gauss maps and secant varieties. After a brief history, I'll give the proofs that (i) projective varieties with degenerate Gauss maps are singular (ii) Zak's theorem on tangencies, (iii) Zak's theorem on linear normailty, (iv) interesting tensors associated to varieties with degenerate secant varieties. The talks will also serve as an introduction to the moving frame.