The uncrossing partial order on matchings is Eulerian

Abstract

We prove that the partial order on the set of matchings of 2n points on a circle, given by resolving crossings, is an Eulerian poset.

6 pages

References in corpus (2)

• ABJM amplitudes and the positive orthogonal grassmannian
• Circular Planar Electrical Networks I: The Electrical Poset EP_{n}