Results 41 to 50 of about 63,696 (324)

Reproducing Kernels and Discretization

open access: yes, 2015
We give a short survey of a general discretization method based on the theory of reproducing kernels. We believe our method will become the next generation method for solving analytical problems by computers. For example, for solving linear PDEs with general boundary or initial value conditions, independently of the domains.
Castro, L. P.   +4 more
openaire   +3 more sources

Subgroups of Paths and Reproducing Kernels [PDF]

open access: yesThe Annals of Probability, 1973
The following generalizations of certain theorems due to G. Kallianpur and to Jamison and Orey are proved for an arbitrary Gaussian measure $P$ on a space of real functions: if the reproducing kernel Hilbert space $H$ is infinite dimensional then $P(H) = 0$; if a subgroup $G$ of the space of real functions (under addition) is measurable with respect to
openaire   +4 more sources

On functional reproducing kernels

open access: yesOpen Mathematics, 2023
Abstract We show that even if a Hilbert space does not admit a reproducing kernel, there could still be a kernel function that realizes the Riesz representation map. Constructions in spaces that are the Fourier transform of weighted
openaire   +2 more sources

Factorizations of Kernels and Reproducing Kernel Hilbert Spaces [PDF]

open access: yesIntegral Equations and Operator Theory, 2017
The paper discusses a series of results concerning reproducing kernel Hilbert spaces, related to the factorization of their kernels. In particular, it is proved that for a large class of spaces isometric multipliers are trivial. One also gives for certain spaces conditions for obtaining a particular type of dilation, as well as a classification of ...
Dan Timotin   +3 more
openaire   +3 more sources

A Quasi-Convex RKPM for 3D Steady-State Thermomechanical Coupling Problems

open access: yesMathematics
A meshless, quasi-convex reproducing kernel particle framework for three-dimensional steady-state thermomechanical coupling problems is presented in this paper.
Lin Zhang   +3 more
doaj   +1 more source

Solving a System of Linear Volterra Integral Equations Using the Modified Reproducing Kernel Method

open access: yesAbstract and Applied Analysis, 2013
A numerical technique based on reproducing kernel methods for the exact solution of linear Volterra integral equations system of the second kind is given.
Li-Hong Yang   +2 more
doaj   +1 more source

Reproducing Kernel Method with Global Derivative

open access: yesJournal of Function Spaces, 2023
Ordinary differential equations describe several phenomena in different fields of engineering and physics. Our aim is to use the reproducing kernel Hilbert space method (RKHSM) to find a solution to some ordinary differential equations (ODEs) that are ...
Nourhane Attia   +2 more
doaj   +1 more source

Analysis of unbounded operators and random motion

open access: yes, 2009
We study infinite weighted graphs with view to \textquotedblleft limits at infinity,\textquotedblright or boundaries at infinity. Examples of such weighted graphs arise in infinite (in practice, that means \textquotedblleft very\textquotedblright large ...
Dunford N.   +6 more
core   +1 more source

Radial kernels and their reproducing kernel Hilbert spaces [PDF]

open access: yesJournal of Complexity, 2010
AbstractWe describe how to use Schoenberg’s theorem for a radial kernel combined with existing bounds on the approximation error functions for Gaussian kernels to obtain a bound on the approximation error function for the radial kernel. The result is applied to the exponential kernel and Student’s kernel. To establish these results we develop a general
Ingo Steinwart   +3 more
openaire   +1 more source

Branching problems in reproducing kernel spaces [PDF]

open access: yesDuke Mathematical Journal, 2020
For a semisimple Lie group $G$ satisfying the equal rank condition, the most basic family of unitary irreducible representations is the discrete series found by Harish-Chandra. In this paper, we study some of the branching laws for discrete series when restricted to a subgroup $H$ of the same type by combining classical results with recent work of T ...
Ørsted, Bent, Vargas, Jorge A.
openaire   +6 more sources

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