T. Chelvam

activity

20212023

collaborators

4 papers

math.GR2023

Eulerian character degree graph

G Sivanesan, C Selvaraj, T Tamizh Chelvam

We obtain a necessary condition for the character degree graph of a solvable group G to be Eulerian.

math.GR2022

Generalized non-coprime graphs of groups

S. Anukumar Kathirvel, Peter J. Cameron, T. Tamizh Chelvam

Let G be a finite group with identity e and H \neq \{e\} be a subgroup of G. The generalized non-coprime graph GAmma_{G,H} of G with respect to H is the simple undirected graph wit…

math.RA2022

Induced subgraphs of zero-divisor graphs

G. Arunkumar, Peter J. Cameron, T. Kavaskar +1

The zero-divisor graph of a finite commutative ring with unity is the graph whose vertex set is the set of zero-divisors in the ring, with $a$ and $b$ adjacent if $ab = 0$ . We show t…

math.CO2021

Subgroup sum graphs of finite abelian groups

Peter J. Cameron, R. Raveendra Prathap, T. Tamizh Chelvam

Let $G$ be a finite abelian group, written additively, and $H$ a subgroup of~ $G$ . The \emph{subgroup sum graph} $Γ_{G, H}$ is the graph with vertex set $G$ , in which two distinct ve…