Results 271 to 280 of about 294,893 (309)

Positive Definiteness and Stability of Interval Matrices

SIAM Journal on Matrix Analysis and Applications, 1994
Interval matrices are considered that are positive definite, positive semidefinite, Hurwitz stable or Schur stable. Necessary and sufficient conditions for each of these properties are investigated. The conditions are based on corresponding properties of a finite number of real test matrices that are derived from the interval matrix under consideration.
openaire   +1 more source

Eigenvalues and Positive Definite Matrices

2012
Eigenvalues and eigenvectors are defined. The Spectral Theorem for symmetric matrices is proved. Positive definite matrices are introduced. Idempotent matrices are defined and it is shown that for such matrices the rank equals the trace. Schur complement is defined and its application to proving characterizations of positive definite matrices is shown.
openaire   +1 more source

Spectral Perturbation Bounds for Positive Definite Matrices

SIAM Journal on Matrix Analysis and Applications, 1997
For positive definite matrices this paper studies relative perturbation bounds for eigenvalues, eigenvectors and singular values and vectors. Some of the known perturbation bounds are strengthened and their proofs unified by rewriting additive perturbations multiplicatively.
openaire   +1 more source

Systemic therapy for hormone receptor‐positive/human epidermal growth factor receptor 2‐negative early stage and metastatic breast cancer

Ca-A Cancer Journal for Clinicians, 2023
Laura A Huppert, Hope S Rugo
exaly  

Positive Definite Matrices

2017
Ravi P. Agarwal, Cristina Flaut
openaire   +1 more source

Evolving standards of care and new challenges in the management of HER2‐positive breast cancer

Ca-A Cancer Journal for Clinicians, 2020
Grace M Choong, Grace D Cullen, Ciara C O'sullivan   +2 more
exaly  

The relaxation modulus-based matrix splitting iteration method for solving linear complementarity problems of positive definite matrices

Applied Mathematics and Computation, 2018
Bao Wen, Hua Zheng, Wen Li, Xiaofei Peng
semanticscholar   +1 more source

Not Positive Definite Correlation Matrices in Exploratory Item Factor Analysis: Causes, Consequences and a Proposed Solution

Structural Equation Modeling, 2021
Urbano lorenzo-seva, Pere J Ferrando
exaly  

Gaussian mixture regression on symmetric positive definite matrices manifolds: Application to wrist motion estimation with sEMG

IEEE/RJS International Conference on Intelligent RObots and Systems, 2017
Noémie Jaquier, S. Calinon
semanticscholar   +1 more source

Intrinsic Wavelet Regression for Curves of Hermitian Positive Definite Matrices

Journal of the American Statistical Association, 2021
Rainer Von Sachs
exaly