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Videos linked to 11E81 Algebraic theory of quadratic forms; Witt groups and ringsMore +
![Grothendieck–Serre in the quasi-split unramified case]()
01:07:56published on June 7, 2021Grothendieck–Serre in the quasi-split unramified case
By Kęstutis Česnavičius
![Subtle Stiefel-Whitney classes and the J-invariant of quadrics]()
01:07:50published on September 29, 2015Subtle Stiefel-Whitney classes and the J-invariant of quadrics
By Alexander Vishik
