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RISConditionally positive definite kernels in Hilbert $C^*$-modules
We investigate the notion of conditionally positive definite in the context of Hilbert $C^*$-modules and present a characterization of the conditionally positive definiteness in terms of the usual positive definiteness. We give a Kolmogorov type...
The Cicchetti–Allison weighting matrix is positive definite
A positive view on road safety: Can â€کcar karma’ contribute to safe driving styles?
Positive definite kernels in Hilbert C*-modules
The Kolmogorov decomposition of positive definite kernels in context of Hilbert C^*-modules
was given by G. J. Murphy [Proc. Edinburgh Math. Soc. (2) 40 (1997), no. 2, 367--374]. In this
talk, we investigate positive definite...
Inference on the eigenvalues of the covariance matrix of a multivariate normal distribution—Geometrical view
Gaussian processes on the support of cylindrical surfaces, with application to periodic spatio temporal data
Further refinements of the Heinz inequality
The celebrated Heinz inequality asserts that $
2
Positive definite solutions of certain nonlinear matrix equations
We investigate positive definite solutions of nonlinear matrix equations $X-f(\\Phi(X))=Q$ and $X-\\sum_{i=1}^{m}f(\\Phi_i(X))=Q$, where $Q$ is a positive definite matrix, $\\Phi$ and $\\Phi_i ~~(1\\leq i\\leq m)$ are positive linear maps...
A sparse-sparse iteration for computing a sparse incomplete
Abstract
In this paper, a method via sparse-sparse iteration for computing a sparse incomplete factorization of the inverse of a symmetric
positive definite matrix is proposed. The resulting factorized sparse approximate inverse...