Title
The Steep-Bounce zeta map in Parabolic Cataland.
Abstract
As a classical object, the Tamari lattice has many generalizations, including ν-Tamari lattices and parabolic Tamari lattices. In this article, we unify these generalizations in a bijective fashion. We first prove that parabolic Tamari lattices are isomorphic to ν-Tamari lattices for bounce paths ν. We then introduce a new combinatorial object called “left-aligned colorable tree”, and show that it provides a bijective bridge between various parabolic Catalan objects and certain nested pairs of Dyck paths. As a consequence, we prove the Steep-Bounce Conjecture using a generalization of the famous zeta map in q,t-Catalan combinatorics. A generalization of the zeta map on parking functions, which arises in the theory of diagonal harmonics, is also obtained as a labeled version of our bijection.
Year
DOI
Venue
2020
10.1016/j.jcta.2020.105210
Journal of Combinatorial Theory, Series A
Keywords
Field
DocType
Parabolic Tamari lattice,ν-Tamari lattice,Bijection,Left-aligned colorable tree,Zeta map
Diagonal,Tamari lattice,Combinatorics,Bijection,Lattice (order),Generalization,Isomorphism,Conjecture,Mathematics,Parabola
Journal
Volume
ISSN
Citations 
172
0097-3165
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Cesar Ceballos1225.41
Wenjie Fang2287.68
Henri Mühle325.14