A. Somasundaram

collaborators

2 papers

math.CO2022

Characterization of rings with planar, toroidal or projective planar prime ideal sum graphs

Praveen Mathil, Barkha Baloda, Jitender Kumar +1

Let $R$ be a commutative ring with unity. The prime ideal sum graph $PIS (R)$ of the ring $R$ is the simple undirected graph whose vertex set is the set of all nonzero proper…

math.CO2022

On graphs with distance Laplacian eigenvalues of multiplicity $n - 4$

Saleem Khan, S. Pirzada

Let $G$ be a connected simple graph with $n$ vertices. The distance Laplacian matrix $D^{L} (G)$ is defined as $D^{L} (G) = D ia g (T r) - D (G)$ , where $D ia g (T r)$ is the diagonal matrix of ver…

Characterization of rings with planar, toroidal or projective planar prime ideal sum graphs

On graphs with distance Laplacian eigenvalues of multiplicity n−4

On graphs with distance Laplacian eigenvalues of multiplicity $n - 4$