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math.RA2020
Matrix compression along isogenic blocks
Alexander Belton, Dominique Guillot, Apoorva Khare +1
A matrix-compression algorithm is derived from a novel isogenic block decomposition for square matrices. The resulting compression and inflation operations possess strong functoria…
math.RA2020★ 7 cited
Sign non-reversal property for totally non-negative and totally positive matrices, and testing total positivity of their interval hull
Projesh Nath Choudhury, M. Rajesh Kannan, Apoorva Khare
A matrix is totally positive (or non-negative) of order , denoted (or ), if all minors of size are positive (or non-negative). It is well-known that su…