activity
20182026
most citedOn the spectrum of complex unit gain graph

6 citations · 6 across the 10 of their papers we have counts for

collaborators

14 papers

math.CO2026

Energy of signed graphs and the vertex cover number

Aniruddha Samanta, Deepshikha, Kinkar Chandra Das

The energy of a signed graph is the sum of the absolute values of the eigenvalues of its adjacency matrix . In this article, we prove that $\mathca…

math.CO2025

Spectral properties of distance Laplacian matrices of complex unit gain graphs

Aniruddha Samanta, Deepshikha

A complex unit gain graph (-gain graph), is a graph where the function assigns a unit complex number to each orientation of an edge of , and it…

math.FA2025

On spectrally optimal duals for r-erasures of frames generated by graphs

Deepshikha, Aniruddha Samanta

In [9], authors studied spectrally optimal dual frames for 1-erasure and 2-erasures of frames generated by graph. In this paper, we study spectrally optimal dual frames for r-erasu…

math.CO2025

Improved bound of graph energy in terms of vertex cover number

Aniruddha Samanta

Let be a simple graph with the vertex cover number . The energy of is the sum of the absolute values of all the adjacency eigenvalues of . I…

math.CO2024

Unifying adjacency, Laplacian, and signless Laplacian theories

Aniruddha Samanta, Deepshikha, Kinkar Chandra Das

Let be a simple graph with associated diagonal matrix of vertex degrees , adjacency matrix , Laplacian matrix and signless Laplacian matrix . Recently,…

math.FA2024

On spectrally optimal duals of frames generated by graphs

Deepshikha, Aniruddha Samanta

Recently, the concept of frames generated by graphs has been introduced in \cite{D}. In this paper, we study spectrally optimal dual frames of frames generated by graphs. We show t…

math.CO2024

On walk-regular graphs and optimal duals of frames generated by graphs

Deepshikha, Aniruddha Samanta

Erasures are a common problem that arises while signals or data are being transmitted. A profound challenge in frame theory is to find the optimal dual frames (-frames) to mini…

math.CO2023

Bounds and extremal graphs for the energy of complex unit gain graphs

Aniruddha Samanta, M. Rajesh Kannan

A complex unit gain graph (-gain graph), is a graph where the gain function assigns a unit complex number to each orientation of an edge of an…

math.CO2021

Gain distance matrices for complex unit gain graphs

Aniruddha Samanta, M. Rajesh Kannan

A complex unit gain graph (-gain graph), is a graph where the function assigns a unit complex number to each orientation of an edge of , and it…

math.CO2021

On the multiplicity of -eigenvalues and the rank of complex unit gain graphs

Aniruddha Samanta, M. Rajesh Kannan

Let be a connected complex unit gain graph (-gain graph) on a simple graph with vertices and maximum vertex degree . The associated adjac…

math.CO2020

Bounds for the energy of a complex unit gain graph

Aniruddha Samanta, M. Rajesh Kannan

A -gain graph, , is a graph in which the function assigns a unit complex number to each orientation of an edge, and its inverse is assigned to the opposi…

math.FA2020

On Weaving Generalized Frames and Generalized Riesz Bases

Deepshikha, Aniruddha Samanta

Weaving frames have potential applications in wireless sensor networks that require distributed processing of signal under different frames. In this paper, we study some new proper…

math.CO2019★ 6 cited

On the spectrum of complex unit gain graph

Aniruddha Samanta, M. Rajesh Kannan

A -gain graph is a simple graph in which a unit complex number is assigned to each orientation of an edge, and its inverse is assigned to the opposite orientation. The…

math.CO2018

On the adjacency matrix of a complex unit gain graph

Ranjit Mehatari, M. Rajesh Kannan, Aniruddha Samanta

A complex unit gain graph is a simple graph in which each orientation of an edge is given a complex number with modulus 1 and its inverse is assigned to the opposite orientation of…