Mukesh Kumar Nagar

@jiit.ac.in

Assistant Professor
Jaypee Institute of Information Technology Noida

EDUCATION

Ph.D, Postdoc

RESEARCH, TEACHING, or OTHER INTERESTS

Discrete Mathematics and Combinatorics, Algebra and Number Theory

6

Scopus Publications

16

Scholar Citations

2

Scholar h-index

Scopus Publications

  • The maximum four point condition matrix of a tree
    Ali Azimi, Rakesh Jana, Mukesh Kumar Nagar, and Sivaramakrishnan Sivasubramanian

    Elsevier BV

  • Inequalities among two rowed immanants of the q-Laplacian of trees and odd height peaks in generalized Dyck paths
    Mukesh Kumar Nagar, Arbind Kumar Lal, and Sivaramakrishnan Sivasubramanian

    Informa UK Limited
    Let T be a tree on n vertices and let be the q-analogue of its Laplacian. For a partition , let the normalized immanant of indexed by λ be denoted as . A string of inequalities among is known when λ varies over hook partitions of n as the size of the first part of λ decreases. In this work, we show a similar sequence of inequalities when λ varies over two row partitions of n as the size of the first part of λ decreases. Our main lemma is an identity involving binomial coefficients and irreducible character values of indexed by two row partitions. Our proof can be interpreted using the combinatorics of Riordan paths and our main lemma admits a nice probabilisitic interpretation involving peaks at odd heights in generalized Dyck paths or equivalently involving special descents in Standard Young Tableaux with two rows. As a corollary, we also get inequalities between and when and are comparable trees in the poset and when and are both two rowed partitions of n, with having a larger first part than .


  • Laplacian immanantal polynomials and the GTS poset on trees
    Mukesh Kumar Nagar and Sivaramakrishnan Sivasubramanian

    Elsevier BV

  • GENERALIZED MATRIX POLYNOMIALS OF TREE LAPLACIANS INDEXED BY SYMMETRIC FUNCTIONS AND THE GTS POSET


  • Hook immanantal and Hadamard inequalities for q-Laplacians of trees
    Mukesh Kumar Nagar and Sivaramakrishnan Sivasubramanian

    Elsevier BV

RECENT SCHOLAR PUBLICATIONS

  • The maximum four point condition matrix of a tree
    A Azimi, R Jana, MK Nagar, S Sivasubramanian
    Linear Algebra and its Applications 2024

  • On the Min4PC Matrix of a Tree
    A Azimi, R Jana, MK Nagar, S Sivasubramanian
    American Journal of Combinatorics Research Note 3, 13-21 2024

  • Laplacian Immanantal Polynomials of a Bipartite Graph and Graph Shift Operation
    MK Nagar
    arXiv preprint arXiv:2307.15979 2023

  • Inequalities among two rowed immanants of the q-Laplacian of trees and odd height peaks in generalized Dyck paths
    MK Nagar, AK Lal, S Sivasubramanian
    Journal of Difference Equations and Applications 28 (2), 198-221 2022

  • Generalized Matrix polynomials of Tree Laplacians indexed by Symmetric functions and the GTS poset
    MK Nagar, S Sivasubramanian
    arXiv preprint arXiv:1912.03101 2019

  • Eigenvalue monotonicity of q-Laplacians of trees along a poset
    MK Nagar
    Linear Algebra and its Applications 571, 110-131 2019

  • Laplacian immanantal polynomials and the GTS poset on trees
    MK Nagar, S Sivasubramanian
    Linear Algebra and its Applications 561, 1-23 2019

  • Hook immanantal and Hadamard inequalities for q-Laplacians of trees
    MK Nagar, S Sivasubramanian
    Linear Algebra and its Applications 523, 131-151 2017

  • A q and q; t-analogue of Hook Immanantal Inequalities and Hadamard Inequality for Trees
    MK Nagar, S Sivasubramanian
    2016

MOST CITED SCHOLAR PUBLICATIONS

  • Hook immanantal and Hadamard inequalities for q-Laplacians of trees
    MK Nagar, S Sivasubramanian
    Linear Algebra and its Applications 523, 131-151 2017
    Citations: 8

  • Laplacian immanantal polynomials and the GTS poset on trees
    MK Nagar, S Sivasubramanian
    Linear Algebra and its Applications 561, 1-23 2019
    Citations: 4

  • Eigenvalue monotonicity of q-Laplacians of trees along a poset
    MK Nagar
    Linear Algebra and its Applications 571, 110-131 2019
    Citations: 2

  • The maximum four point condition matrix of a tree
    A Azimi, R Jana, MK Nagar, S Sivasubramanian
    Linear Algebra and its Applications 2024
    Citations: 1

  • Generalized Matrix polynomials of Tree Laplacians indexed by Symmetric functions and the GTS poset
    MK Nagar, S Sivasubramanian
    arXiv preprint arXiv:1912.03101 2019
    Citations: 1