COVID-19. Pandemic surgery guidance

BLDM Brücher, G Nigri, A Tinelli, J Florencio… - 4 OPEN, 2020 - iris.uniroma1.it
Based on high quality surgery and scientific data, scientists and surgeons are committed to
protecting patients as well as healthcare staff and hereby provide this Guidance to address …

Complementarity properties of Peirce-diagonalizable linear transformations on Euclidean Jordan algebras

MS Gowda, J Tao, R Sznajder - Optimization Methods and …, 2012 - Taylor & Francis
Peirce-diagonalizable linear transformations on a Euclidean Jordan algebra are of the form
L (x)= A· x:=∑ a ij x ij, where A=[a ij] is a real symmetric matrix and∑ x ij is the Peirce …

[HTML][HTML] Some majorization inequalities induced by Schur products in Euclidean Jordan algebras

MS Gowda - Linear Algebra and its Applications, 2020 - Elsevier
Abstract In a Euclidean Jordan algebra V of rank n, an element x is said to be majorized by
an element y, symbolically x≺ y, if the corresponding eigenvalue vector λ (x) is majorized by …

Euclidean Jordan algebras and some conditions over the spectra of a strongly regular graph

L Vieira - 4open, 2019 - 4open-sciences.org
Let G be a primitive strongly regular graph G such that the regularity is less than half of the
order of G and A its matrix of adjacency, and let 𝒜 be the real Euclidean Jordan algebra of …

Performance advantage of quaternion widely linear estimation: An approximate uncorrelating transform approach

M Xiang, S Kanna, SC Douglas… - 2016 IEEE International …, 2016 - ieeexplore.ieee.org
Widely linear processing has been shown to be superior to the traditional strictly linear
processing in quaternion minimum mean square error (MMSE) estimation. However, a …

Hadamard product and related inequalities in the Jordan spin algebra

S Kum, Y Lim, J Jeong - Linear and Multilinear Algebra, 2023 - Taylor & Francis
Due to its simple yet elegant structure, the study of an entry-wise product of matrices, called
the Hadamard product, has received extensive attention from researchers and has …

A theoretical bound for the performance advantage of quaternion widely linear estimation

C Jahanchahi, S Kanna… - 2014 19th International …, 2014 - ieeexplore.ieee.org
The quaternion widely linear model was recently introduced for optimal second order
estimation of noncircular 3D and 4D data. Its superiority over the standard strictly linear …

Some useful inequalities via trace function method in Euclidean Jordan algebras

YL Chang, CY Yang - Numerical Algebra, Control and Optimization, 2013 - aimsciences.org
In this paper, we establish convexity of some functions associated with symmetric cones,
called SC trace functions. As illustrated in the paper, these functions play a key role in the …

[PDF][PDF] Minimum eigenvalue inequalities for Z-transformations on proper and symmetric cones

J Tao, MS Gowda - Linear Algebra and its Applications, 2013 - Citeseer
A linear transformation L defined on a finite dimensional real Hilbert space is said to be a Z-
transformation on a proper cone K if x∈ K, y∈ K∗, and〈 x, y〉= 0⇒〈 L (x), y〉⩽ 0, where …

Linear Complementarity Problems over Symmetric Cones: Characterization of Q b -transformations and Existence Results

J López, R López, HC Ramírez - Journal of Optimization Theory and …, 2013 - Springer
This paper is devoted to the study of the symmetric cone linear complementarity problem
(SCLCP). Specifically, our aim is to characterize the class of linear transformations for which …