Titlebook: Extended Abstracts EuroComb 2021; European Conference Jaroslav Ne?et?il,Guillem Perarnau,Oriol Serra Conference proceedings 2021 The Edito

幼兒

BATE

Nested Cycles with No Geometric Crossings,isjoint cycles . and ., such that the vertex set of . is a subset of the vertex set of . and their cyclic orderings of the vertices respect each other? We prove the optimal linear bound . using sublinear expanders.

Breach

Relinquish

Enumerating Descents on Quasi-Stirling Permutations and Plane Trees,al extension of these permutations are quasi-Stirling permutations, which are in bijection with labeled rooted plane trees, and can be viewed as labeled noncrossing matchings. They were recently introduced by Archer et al., who conjectured that there are . quasi-Stirling permutations of size . havin