Rijubrata Kundu

activity

20222026

collaborators

5 papers

math.GR2026

On Conjugacy Classes of Derangements in Symmetric and Alternating Groups

Harish Kishnani, Rijubrata Kundu

In this article, we prove two conjectures of Burness and Fusari [Timothy Burness and Marco Fusari, On derangements in simple permutation groups, Forum Math. Sigma 13 (2025)] concer…

math.CO2025

A Relationship Between Character Values Of Wreath Products And The Symmetric Group

Rijubrata Kundu, Papi Ray

A relation between certain irreducible character values of the hyperoctahedral group $B_{n}$ ( $Z /2 Z ≀ S_{n}$ ) and the symmetric group $S_{2 n}$ was proved by F. Lübe…

math.RT2024

Covering Numbers of Some Irreducible Characters of the Symmetric Group

Rijubrata Kundu, Velmurugan S

The covering number of a non-linear character $χ$ of a finite group $G$ is the least positive integer $k$ such that every irreducible character of $G$ occurs in $χ^{k}$ . We determine…

math.GR2023

Products of conjugacy classes in $SL_{2} (k)$ and $PSL_{2} (k)$

Harish Kishnani, Rijubrata Kundu, Sumit Chandra Mishra

Let $k$ be a field with $u$ -invariant $\leq 2$ . Assume further that $k$ is not quadratically closed, $char (k) \neq = 2$ and $∣ k ∣ \geq 5$ . It is known that the covering number o…

math.CO2022

Alternating groups as products of cycle classes - II