Seung-Il Choi

collaborators

2 papers

math.CO2024

Equivalence classes of lower and upper descent weak Bruhat intervals

Seung-Il Choi, Sun-Young Nam, Young-Tak Oh

Let $Int (n)$ denote the set of nonempty left weak Bruhat intervals in the symmetric group $S_{n}$ . We investigate the equivalence relation $≃ D$ o…

math.CO2024

Quasisymmetric Schur $Q$ -functions and peak Young quasisymmetric Schur functions

Seung-Il Choi, Sun-Young Nam, Young-Tak Oh

In this paper, we explore the relationship between quasisymmetric Schur $Q$ -functions and peak Young quasisymmetric Schur functions. We introduce a bijection on $SPIT (α)$ …

Equivalence classes of lower and upper descent weak Bruhat intervals

Quasisymmetric Schur Q-functions and peak Young quasisymmetric Schur functions

Quasisymmetric Schur $Q$ -functions and peak Young quasisymmetric Schur functions