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The Riemannian Means Field Classifier for EEG-Based BCI Data. [PDF]

Sensors (Basel)
Andreev A, Cattan G, Congedo M.
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The positive definite solution to a nonlinear matrix equation

Linear and Multilinear Algebra, 2015
In this paper, we consider a nonlinear matrix equation, which has the form , where is a positive integer, is an arbitrary complex matrix and is an Hermitian positive definite matrix. A double of elegant estimates of the Hermitian positive definite solution are obtained.
Jie Meng, Hyun-Min Kim
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Multisplitting of a Symmetric Positive Definite Matrix

SIAM Journal on Matrix Analysis and Applications, 1990
Parallel iterative methods are studied, and the focus is on linear algebraic systems whose matrix is symmetric and positive definite. The set of unknowns may be viewed as a union of subsets of unknowns (possibly with overlap). The parallel iteration matrix is then formed by a weighted sum of iteration matrices that are associated with splittings of the
R. White
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Symmetric decomposition of a positive definite matrix [PDF]

Numerische Mathematik, 1965
R. S. Martin, G. Peters, James Hardy Wilkinson   +2 more
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The Symmetric Positive Definite Matrix Again [PDF]

Compact Numerical Methods for Computers, 2018
J. Nash
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Positive definite matrix functions on spheres defined by hypergeometric functions

Integral transforms and special functions, 2019
Positive definite matrix functions on spheres arise naturally in multivariate approximation and spatial statistics. The construction of strictly positive definite models has become one of the most important goals for the analysis and study of vector ...
J. Guella, V. Menegatto
semanticscholar   +1 more source

A positive-definite matrix which is not extendible [PDF]

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1984
This note treats the problem of extendibility of a positive-definite matrix. The difference between extendibility and positive- semidefiniteness in multiple dimensions is described. The construction of a positive definite nonextendible correlation matrix is also given.
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