# Pablo Soberón “Mass partitions, transversals, and Stiefel manifolds” | Big Seminar

November 11, 2021
19.00 MSK (UTC +3)
Talk on Big Seminar

# Pablo Soberón "Mass partitions, transversals, and Stiefel manifolds"

Pablo Soberón from Baruch College, CUNY will give the talk "Mass partitions, transversals, and Stiefel manifolds" on the labs' Big Seminar.

The talk will be held in zoom
Password: first 6 decimal places of $\pi$ after the decimal point
We study mass partition problems related to geometric transversals. In this talk, we focus on two problems. In the first, given a measure in $R^d$, we seek to split $R^d$ into few convex sets of equal measure so that every hyperplane misses the interior of many regions. In the second, we extend recent ham sandwich results on Grassmannians to impose geometric constraints on the dividing subspaces. The topological backbone of both problems is the same, and relies on extensions of the Borsuk—Ulam theorem to Stiefel manifolds. The contents of this talk are joint work with Ilani Axelrod-Freed and Michael Manta.