8 citations · 32 across the 9 of their papers we have counts for
5 papers · 1 filter
The Pop-stack-sorting Operator on Tamari Lattices
Letong Hong
Motivated by the pop-stack-sorting map on the symmetric groups, Defant defined an operator for each complete meet-semilattice by $$\mathsf{Pop}_M(x)=…
Length-Four Pattern Avoidance in Inversion Sequences
Letong Hong, Rupert Li
Inversion sequences of length are integer sequences with for all , which are in bijection with the permutations of length . In this paper,…
No extremal square-free words over large alphabets
Letong Hong, Shengtong Zhang
A word is square-free if it does not contain any square (a word of the form ), and is extremal square-free if it cannot be extended to a new square-free word by inserting a sin…
A Markov chain on the solution space of edge-colorings of bipartite graphs
Letong Hong, Istvan Miklos
In this paper, we exhibit an irreducible Markov chain on the edge -colorings of bipartite graphs based on certain properties of the solution space. We show that diameter of…
Towards Heim and Neuhauser's Unimodality Conjecture on the Nekrasov-Okounkov polynomials
Letong Hong, Shengtong Zhang
Let be the polynomials associated with the Nekrasov-Okounkov formula In this paper we partially a…