How to Detect and Construct N-matrices. - Projesh Nath Choudhury; Michael J. Tsatsomeros (CoRR, 2020)

Sign non-reversal property for totally positive matrices and testing total positivity on their interval hull. - Projesh Nath Choudhury; M. Rajesh Kannan (CoRR, 2020)

Interval hulls of N-matrices and almost P-matrices. - Projesh Nath Choudhury; M. Rajesh Kannan (CoRR, 2020)

Characterizing total negativity and testing their interval hulls. - Projesh Nath Choudhury (CoRR, 2021)

Distance matrices of a tree: Two more invariants, and in a unified framework. - Projesh Nath Choudhury; Apoorva Khare (Eur. J. Comb., 2024)