- (With Shivangi Yadav.) Sign regular matrices and variation diminution: single-vector tests and characterizations, following Schoenberg, Gantmacher-Krein, and Motzkin
Proceedings of the American Mathematical Society, in press. [arXiv]
- (With Apoorva Khare.) The blowup-polynomial of a metric space: connections to stable polynomials, graphs and their distance spectra
Canadian Journal of Mathematics, in press. [arXiv]
- (With Apoorva Khare.) Distance matrices of a tree: two more invariants, and in a unified
framework
European Journal of Combinatorics 115, Article #103787 (30 pp.), 2024. [arXiv]
- (With Raju Nandi.) Quadratic embedding constants of graphs: Bounds and distance spectra
Linear Algebra and its Applications 680, pages 108-125, 2024. [arXiv]
- Total negativity: characterizations and single-vector tests
Bulletin des Sciences Mathématiques 186, Article #103284 (21 pp.), 2023. [arXiv]
- (With Apoorva Khare.) Blowup polynomials and delta-matroids of graphs
Séminaire Lotharingien de Combinatoire 86B, Article #42, 2022. [arXiv]
- Characterizing total positivity: single vector tests via Linear Complementarity, sign non-reversal, and variation diminution
Bulletin of the London Mathematical Society 54, pages 891-911, 2022. [arXiv]
- (With K.C. Sivakumar.) Nesbitt and Shapiro Cyclic Sum Inequalities for Positive Definite Matrices
Advances in Operator Theory 7, article 7 (11 pp.), 2022. [arXiv]
- (With M. Rajesh Kannan and Apoorva Khare.) Sign non-reversal property for totally non-negative and totally positive matrices, and testing total positivity of their interval
Bulletin of the London Mathematical Society 53, pages 981-990, 2021. [arXiv]
- (With M. Rajesh Kannan.) Interval hulls of N-matrices and almost P-matrices
Linear Algebra and its Applications 617, pages 27-38, 2021. [arXiv]
- (With K.C. Sivakumar.) Matrices with positive semidefinite real
Linear and Multilinear Algebra 69, pages 448-470, 2021.
- (With N. Eagambaram, K.C. Sivakumar and P. Sushmitha.) On the matrix class Q0 and inverse monotonicity properties of bordered matrices
Linear Algebra and its Applications 612, pages 206-222, 2021.
- (With Michael J. Tsatsomeros.) Algorithmic Detection and Construction of N-matrices
Linear Algebra and its Applications 602, pages 46-56, 2020. [arXiv]
- (With M. Rajesh Kannan and K.C. Sivakumar.) A note on linear preservers on semipositive and minimal semipositive matrices
Electronic Journal of Linear Algebra 34, pages 687-694, 2018. [arXiv]
- (With M. Rajesh Kannan and K.C. Sivakumar.) New contributions to semipositive and minimally semipositive matrices
Electronic Journal of Linear Algebra 34, pages 35-53, 2018.
- (With K.C. Sivakumar.) An extension of a matrix inequality of Thompson
Linear Algebra and its Applications 535, pages 151-159, 2017.
- (With K.C. Sivakumar.) Trace inequalities for positive semidefinite matrices
Discussiones Mathematicae - General Algebra and Applications 37, pages 93-104, 2017.
- (With K.C. Sivakumar.) Tucker's theorem for almost skew-symmetric matrices and a proof of Farkas' lemma
Linear Algebra and its Applications 482, pages 55-69, 2015.
- (With Ar. Meenakshi and K.C. Sivakumar.) Almost definite matrices revisited
Electronic Journal of Linear Algebra 29, pages 102-119, 2015.
- (With Shivangi Yadav.) Sign regularity preserving Linear operators, preprint, 2024. [arXiv]
- (With Apoorva Khare.) The additive-multiplicative distance matrix of a graph, and a novel third invariant, preprint, 2023. [arXiv]
- (With Apoorva Khare.) Multivariate blowup-polynomials of graphs, preprint, 2021. [arXiv]
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