Presented By: Student Combinatorics Seminar - Department of Mathematics
The Diaconis-Graham Inequalities and Links from Permutations
Amanda Schwartz
In 1977, Diaconis and Graham proved inequalities involving different permutation statistics that measure disarray of permutations. This talk will focus on a new proof of these inequalities by Cornwell and McNew from 2024 that uses links associated to permutations. In particular, they prove the inequalities by expressing the Euler characteristic of these links in terms of the permutation statistics appearing in the inequalities.