Tuesday, March 15, 2022

Tuesday, March 15, 2022 — 3:00 PM EDT

Title: On packing dijoins in digraphs and weighted digraphs

Speaker: Ahmad Abdi Affiliation: LSE Zoom: http://matroidunion.org/?page_id=2477 or email shayla.redlin@uwaterloo.ca

Abstract:

Let D=(V,A) be a digraph. A dicut is the set of arcs in a cut where all the arcs cross in the same direction, and a dijoin is a set of arcs whose contraction makes D strongly connected. It is known that every dicut and dijoin intersect. Suppose every dicut has size at least k.

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