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The Karcher mean of linearly independent triples
(Elsevier Science Inc, 2021-02)
We present a classification of 2×2 positive definite Hermitian triples of determinant one having the Karcher mean formula [Formula presented]. We further show that it is equivalent to the trace condition: tr(AB−1)=tr(AC− ...
Hyperbolicity of the Karcher mean
(Elsevier Science Inc., 2022-02)
The main concern of this paper is the Karcher mean of linearly independent triples (A,B,C) on the hyperbolic manifold of 2×2 positive definite matrices of determinant 1. We show that the Karcher mean is of the form ...
The Karcher mean of three variables and quadric surfaces
(Academic Press Inc Elsevier Science, 2020-10)
The Riemannian or Karcher mean has recently become an important tool for the averaging and study of positive definite matrices. Finding an explicit formula for the Karcher mean is problematic even for 2x2 triples. In this ...
Evaluation of Operating Room Environment Contamination and Efficacy of 2% Chlorhexidine for Surgical Hand Scrubbing before and after Gowning and Gloving
(Universidade Federal do Rio Grande do Sul, 2017)
Source identification and global implications of black carbon
(Corporación Universidad de la Costa, 2021)
Análisis Multivariado de Datos. Aplicación: Sistema de Producción Doble Propósito
(Barranquilla: Ediciones Universidad Simón Bolívar, 2016, 2020-01-05)
La evolución progresiva y sostenida de la informática en los últimos años ha permitido que técnicas de Análisis Multivariado de Datos (ADM) sean más utilizadas en estudios científicos. Los investigadores saben que la ...
Historia evolutiva y estructura genética poblacional de Rhaebo Colomai (AMPHIBIA: BUFONIDAE), una especie amenazada de Colombia y Ecuador
(Facultad de Ciencias Exactas y NaturalesManizalesMaestría en Ciencias Biológicas, 2023)