Publications
(With Projesh Nath Choudhury.) Sign regularity preserving linear operators
Bulletin of the London Mathematical Society 58, Article #e70209 (24 pp.), 2026. [arXiv]
(With Projesh Nath Choudhury.) Sign regular matrices and variation diminution: Single-vector tests and characterizations, following Schoenberg, Gantmacher-Krein, and Motzkin
Proceedings of the American Mathematical Society 153, pages 497-511, 2025. [arXiv]
(With Projesh Nath Choudhury.) Constructing strictly sign regular matrices of all sizes and sign patterns
Bulletin of the London Mathematical Society 57, pages 2077-2096, 2025. [arXiv]
Submitted articles
(With Projesh Nath Choudhury.) Entrywise preservers of sign regularity, Preprint, 2025. [arXiv]