Sonderseminar: The cone of nonnegative biquadratics in (3,3)-variables
Wann
Dienstag, 28. März 2023
10 bis 11:30 Uhr
Wo
F426
Veranstaltet von
Claus Scheiderer
Vortragende Person/Vortragende Personen:
Rainer Sinn
We study the cone of nonnegative biquadratics in (3,3)-variables
using the cone of nonnegative ternary sextics. Writing a
biquadratic as a quadratic form in one pair of the variables
allows to take the determinant of a 3x3 Gram matrix to obtain
a ternary sextic. We exploit this subtle connection to analyze
a problem arising in the context of PDEs (in material sciences).