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20232025
most citedOn Spectrum of Neighbourhood Corona Product of Signed Graphs

2 citations · 2 across the 8 of their papers we have counts for

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math.CO2025

Bounds on Elliptic Sombor and Euler Sombor indices of join and corona product of graphs

Bishal Sonar, Ravi Srivastava

The Elliptic Somber and Euler Somber indices are newly defined topological indices based on the Somber index. Our paper presents calculations of the upper and lower bounds of these…

math.CO2024

On the strong geodeticity in the corona type product of graphs

Bishal Sonar, Satyam Guragain, Ravi Srivastava

The paper focuses on studying strong geodetic sets and numbers in the context of corona-type products of graphs. Our primary focus is on three variations of the corona products: th…

math.CO2024

A graph product and its Application

Bishal Sonar, Ravi Srivastava

The spectrum of Laplacian and signless Laplacian matrix for a graph product is obtained, where both underlying graphs are regular. As an application of this, we have been able to g…

math.CO2024

On the spectrum of closed neighborhood corona product of graph and its application

Bishal Sonar, Ravi Srivastava

In this paper, we investigate the spectral properties of the closed neighborhood corona product of graphs, which was introduced by Harishchandra S. Ramane et al.~\cite{ramane2021po…

math.CO2024

A signed graph product and its Application

Bishal Sonar, Ravi Srivastava

A signed graph product is defined for a new product, and initially the unsigned graph product's Laplacian spectrum and signless Laplacian spectrum are found. Next, for the signed g…

math.CO2024

r-orientation of a signed graph and its application on coronae of signed graphs

Satyam Guragain, Ravi Srivastava, Bishal Sonar

For unsigned graphs G and H, the characteristic polynomial of different graph matrices for edge corona, subdivision vertex neighbourhood corona and subdivision edge neighbourhood c…

math.CO2023

On spectrum of corona product of duplication signed graph and its application

Bishal Sonar, Ravi Srivastava

This paper introduces the concept of -signed and duplication signed graphs and shows that both are always structurally balanced. Using the duplication signed graph, we define th…

math.CO2023★ 2 cited

On Spectrum of Neighbourhood Corona Product of Signed Graphs

Bishal Sonar, Satyam Guragain, Ravi Srivastava

Given two signed graphs with nodes and , the neighbourhood corona, is the signed graph obtained by taking one copy of and …