Matrix monotonicity and concavity of the principal pivot transform

K Beard, A Welters - Linear Algebra and its Applications, 2024 - Elsevier
We prove the (generalized) principal pivot transform is matrix monotone, in the sense of the
Löwner ordering, under minimal hypotheses. This improves on the recent results of Pascoe …

Monotonicity of the principal pivot transform

JE Pascoe, R Tully-Doyle - Linear Algebra and its Applications, 2022 - Elsevier
We prove that the principal pivot transform (also known as the partial inverse, sweep
operator, or exchange operator in various contexts) maps matrices with positive imaginary …

ON THE PROPERTIES OF A KIND OF RANDOM MATRICES

TGY Arouna, HJS Inkpé - Far East Journal of Dynamical …, 2023 - pphmjopenaccess.com
ON THE PROPERTIES OF A KIND OF RANDOM MATRICES Page 1 Far East Journal of
Dynamical Systems © 2023 Pushpa Publishing House, Prayagraj, India http://www.pphmj.com …

[PDF][PDF] A new low-rank solver for algebraic Riccati equations based on the matrix sign function and principal pivot transforms

P Benner - csc.mpi-magdeburg.mpg.de
A new low-rank solver for algebraic Riccati equations based on the matrix sign function and
principal pivot transforms Page 1 A new low-rank solver for algebraic Riccati equations based …