S. Y. Madanha

activity

20182026

most citedAverage number of zeros of characters of finite groups

7 citations · 17 across the 8 of their papers we have counts for

collaborators

9 papers

math.GR2026

Common non-zero graphs of groups with few edges

Zeinab Akhlaghi, Sesuai Yash Madanha

Let $ G $ be a finite group, and consider its common non-zero graph, which we denote by $ Γ_{nv}(G) $. In this graph, the vertices represent the non-linear irreducible characte…

math.GR2025

Finite groups with few character values that are not character degrees

Sesuai Y. Madanha, X. Mbaale, Tendai M. Mudziiri Shumba

Let $G$ be a finite group and $χ \in Irr (G)$ . Define $cv (G) = {χ (g) ∣ χ \in Irr (G), g \in G}$ , $cv (χ) = {χ (g) ∣ g \in G}$ and denote $…

math.GR2022

On some products of finite groups

A. Ballester-Bolinches, S. Y. Madanha, M. C. Pedraza-Aguilera +1

A classical result of Baer states that a finite group $G$ which is the product of two normal supersoluble subgroups is supersoluble if and only if $G^{'}$ is nilpotent. In this ar…

math.GR2021

Finite groups with few character values

Sesuai Y. Madanha

A classical theorem on character degrees states that if a finite group has fewer than four character degrees, then the group is solvable. We prove a corresponding result on charact…

math.GR2020★ 2 cited

On the orders of vanishing elements of finite groups

Sesuai Y. Madanha

Let $G$ be a finite group and $p$ be a prime. Let $Vo (G)$ denote the set of the orders of vanishing elements, $Vo_{p} (G)$ be the subset of $Vo (G)$ …

math.GR2020★ 7 cited

Average number of zeros of characters of finite groups

Sesuai Y. Madanha

There has been some interest on how the average character degree affects the structure of a finite group. We define, and denote by $anz (G)$ , the average number of zeros…

math.GR2020★ 2 cited

Finite groups with some restriction on the vanishing set

Sesuai Y. Madanha, Bernardo G. Rodrigues

Let $x$ be an element of a finite group $G$ and denote the order of $x$ by $ord (x)$ . We consider a finite group $G$ such that $ \gcd(\mathrm{ord}(x),\mathrm{ord}…

math.GR2019★ 3 cited

Zeros of primitive characters of finite groups

Sesuai Y. Madanha

We classify finite non-solvable groups with a faithful primitive irreducible complex character that vanishes on a unique conjugacy class. Our results answer a question of Dixon and…

math.GR2018★ 3 cited

On a question of Dixon and Rahnamai Barghi

Sesuai Y. Madanha

Let $G$ be a finite non-solvable group with a primitive irreducible character $χ$ that vanishes on one conjugacy class. We show that $G$ has a homomorphic image that is either…