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A turning bands method for simulating isotropic Gaussian random fields on the sphere
(Elsevier B.V., 2019)
We introduce a novel approach to simulate Gaussian random fields defined over spheres of ℝ3. Through continuation we embed the process on the sphere in a nonstationary random field of ℝ3 to use a turning bands method. We ...
Analysis of tumoral spheres growing in a multichamber microfluidic device
(Veterinary and Human Toxicology, 2018-09)
Lab on a Chip (LOC) farming systems have emerged as a powerful tool for single cell studies combined with a non‐adherent cell culture substrate and single cell capture chips for the study of single cell derived tumor ...
An algorithm to find a maximum of a multilinear map over a product of spheres
(Elsevier, 2012-10-26)
We provide an algorithm to compute the 2-norm maximum of a multilinear map over a product of spheres. As a corollary we give a method to compute the first singular value of a linear map and an application to the theory of ...
On the problem of optimal reconstruction
(Birkhauser Boston IncCambridgeEUA, 2007)
La comunicación política como modelo comunicativo en la construcción de democracia.
(Universidad Católica de Pereira, 2014-07-14)
Political communication is a tool that allows civil society approach to decision making of public issues as well as various government agencies knowing the necessities of the community, propose types of solutions and ...
Differentiability of bizonal positive definite kernels on complex spheres
(Academic PressElsevierSan Diego, 2014-04-01)
We prove that any continuous function with domain {z ∈ C: |z| ≤ 1} that generates a bizonal positive definite kernel on the unit sphere in 'C POT.Q' , q ⩾ 3, is continuously differentiable in {z ∈ C: |z| < 1} up to order ...
On Hypersurfaces of Spheres with Two Principal Curvatures
(2011)
In this paper we obtain a classification of hypersurfaces in the Euclidean sphere having two principal curvatures; for some of the results we impose that the sectional curvature (Ricci curvature, resp.) is non-negative Ricci.