Young-Tak Oh

collaborators

3 papers

math.RT2025

Representation Theory of $0$ -Schur Algebras and Related Categories

Woo-Seok Jung, Young-Tak Oh

Jensen, Su, and Yang described the projective indecomposable modules of the $0$ -Schur algebra $S_{0} (n, r)$ using its geometric realization. In this paper, the simple modules…

math.CO2025

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.CO2025

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 $SPIT (I^\pm)$ …

Representation Theory of 0-Schur Algebras and Related Categories

Equivalence classes of lower and upper descent weak Bruhat intervals

Quasisymmetric Schur Q-functions and peak Young quasisymmetric Schur functions

Representation Theory of $0$ -Schur Algebras and Related Categories

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