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Projesh Nath Choudhury
Projesh Nath Choudhury
Post Doctoral Fellow, IISc, Bengaluru
Verified email at iisc.ac.in
Title
Cited by
Cited by
Year
New contributions to semipositive and minimally semipositive matrices
P Choudhury, R Kannan, K Sivakumar
The Electronic Journal of Linear Algebra 34, 35-53, 2018
122018
Characterizing total positivity: Single vector tests via linear complementarity, sign non‐reversal and variation diminution
PN Choudhury
Bulletin of the London Mathematical Society 54 (2), 791-811, 2022
92022
Sign non‐reversal property for totally non‐negative and totally positive matrices, and testing total positivity of their interval hull
PN Choudhury, MR Kannan, A Khare
Bulletin of the London Mathematical Society 53 (4), 981-990, 2021
8*2021
Distance matrices of a tree: two more invariants, and in a unified framework
PN Choudhury, A Khare
European Journal of Combinatorics 115, 103787, 2024
52024
A note on linear preservers on semipositive and minimal semipositive matrices
PN Choudhury, MR Kannan, KC Sivakumar
arXiv preprint arXiv:1806.07168, 2018
32018
Tucker's theorem for almost skew-symmetric matrices and a proof of Farkas' lemma
PN Choudhury, KC Sivakumar
Linear Algebra and its Applications 482, 55-69, 2015
32015
Quadratic embedding constants of graphs: Bounds and distance spectra
PN Choudhury, R Nandi
Linear Algebra and its Applications 680, 108-125, 2024
22024
The blowup-polynomial of a metric space: connections to stable polynomials, graphs and their distance spectra
PN Choudhury, A Khare
Canadian Journal of Mathematics, 1-42, 2023
22023
Total negativity: Characterizations and single-vector tests
PN Choudhury
Bulletin des Sciences Mathématiques 186, 103284, 2023
2*2023
Interval hulls of N-matrices and almost P-matrices
PN Choudhury, MR Kannan
Linear Algebra and its Applications 617, 27-38, 2021
22021
On the matrix class Q0 and inverse monotonicity properties of bordered matrices
PN Choudhury, N Eagambaram, KC Sivakumar, P Sushmitha
Linear Algebra and its Applications 612, 206-222, 2021
22021
Algorithmic detection and construction of N-matrices
PN Choudhury, MJ Tsatsomeros
Linear Algebra and its Applications 602, 46-56, 2020
22020
An extension of a matrix inequality of Thompson
PN Choudhury, KC Sivakumar
Linear Algebra and its Applications 535, 151-159, 2017
22017
Nesbitt and Shapiro cyclic sum inequalities for positive definite matrices
PN Choudhury, KC Sivakumar
Advances in Operator Theory 7, 1-11, 2022
12022
Matrices with positive semidefinite real part
PN Choudhury, KC Sivakumar
Linear and Multilinear Algebra 69 (3), 448-470, 2021
12021
Trace inequalities for positive semidefinite matrices
PN Choudhury, KC Sivakumar
Discussiones Mathematicae: General Algebra & Applications 37 (1), 2017
12017
Almost definite matrices revisited
K Sivakumar, A Meenakshi, P Choudhury
The Electronic Journal of Linear Algebra 29, 102-119, 2015
12015
The additive-multiplicative distance matrix of a graph, and a novel third invariant
PN Choudhury, A Khare
arXiv preprint arXiv:2309.08691, 2023
2023
Sign regularity: Refinement of Gantmacher-Krein-Motzkin results on variation diminution and the linear preserver problem
PN Choudhury, S Yadav
arXiv preprint arXiv:2307.11822, 2023
2023
Blowup polynomials and delta-matroids of graphs
PN Choudhury, A Khare
Seminaire Lotharingien de Combinatoire, in press, 2022
2022
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