activity
20242026
collaborators

5 papers

math.RT2026

Vector-Valued Invariants Associated with All Irreducible Representations for a Finite Group

A. K. M. Selim Reza, Manabu Oura, Masashi Kosuda

We investigate the complex reflection group associated with the octahedral group, identified as the ninth entry in the Shephard-Todd classification. We determine all…

math.RA2025

Computation of Vector-Valued Invariants for a Finite Complex Reflection Group

A. K. M. Selim Reza, Manabu Oura, Masashi Kosuda +1

We consider the complex reflection group \( \mathcal{G} \), identified as No. 8 in the Shephard-Todd classification. In this paper, we present computations of the vector-valued inv…

math.CO2025

On the Structure of Multilinear Invariants of a Finite Unitary Reflection Group

A. K. M. Selim Reza, Manabu Oura, Masashi Kosuda

We study the space of multilinear invariants \( V_f \) of degree \( f \) for a specified finite unitary reflection group. A subspace \( W_f \) of typical invariants is also introdu…

math.CO2025

Some calculations of centralizer rings of a complex reflection group

Masashi Kosuda, Manabu Oura, Sarbaini

Let H1 be the complex reflection group of order 96. For the tensor products of faithful transitive permutation representations of H1, we determine the structures of the centralizer…

math.GM2024

Centralizer Algebras of Two Permutation Groups of Order 1344

M. Kosuda, M. Oura, Sarbaini

There are two permutation groups that they share the same character table of order 1344. We take up natural representations on 8 and 14 letters respectively. The purpose of this pa…