Results 1 to 10 of about 2,163 (260)

On functional reproducing kernels

open access: yesOpen Mathematics, 2023
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.
Weiqi Zhou
exaly   +4 more sources

Exploring novel semi-inner product reproducing Kernels in Banach space for robust Kernel methods. [PDF]

open access: yesPLoS ONE
Kernel methods are widely applied across various domains; however, structural limitations of reproducing kernels in Hilbert spaces pose significant challenges.
Yi Ding, Ying Zhao, Yan Pei
doaj   +2 more sources

Reproducing Kernels and Variable Bandwidth [PDF]

open access: yesJournal of Function Spaces and Applications, 2012
We show that a modulation space of type () is a reproducing kernel Hilbert space (RKHS). In particular, we explore the special cases of variable bandwidth spaces Aceska and Feichtinger (2011) with a suitably chosen weight to provide strong enough decay ...
R. Aceska, H. G. Feichtinger
doaj   +3 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 ...
Jaydeb Sarkar   +2 more
exaly   +4 more sources

Duality by reproducing kernels [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
Let A be a determined or overdetermined elliptic differential operator on a smooth compact manifold X. Write 𝒮A(𝒟) for the space of solutions of the system Au=0 in a domain 𝒟⋐X. Using reproducing kernels related to various Hilbert structures on subspaces
A. Shlapunov, N. Tarkhanov
doaj   +3 more sources

On Relative Reproducing Kernel Banach Spaces: Definitions, Semi-Inner Product and Feature Maps [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2023
In this paper, a special class of relative reproducing kernel Banach spaces a semi-inner product is studied. We extend the concept of relative reproducing kernel Hilbert spaces to Banach spaces. We present these relative reproducing kernel Banach spaces  
Mohammadreza Foroutan
doaj   +1 more source

Calculation of the Reproducing Kernel on the Reproducing Kernel Space with Weighted Integral [PDF]

open access: yesJournal of Applied Mathematics, 2012
We provide a new definition for reproducing kernel space with weighted integral and present a method to construct and calculate the reproducing kernel for the space. The new reproducing kernel space is an enlarged reproducing kernel space, which contains the traditional reproducing kernel space.
Gao, Er, Song, Songhe, Zhang, Xinjian
openaire   +4 more sources

Some Properties of Reproducing Kernel Banach and Hilbert Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
This paper is devoted to the study of reproducing kernel Hilbert spaces. We focus on multipliers of reproducing kernel Banach and Hilbert spaces. In particular, we try to extend this concept and prove some related theorems.
Saeed Hashemi Sababe, Ali Ebadian
doaj   +1 more source

The Polyanalytic Reproducing Kernels [PDF]

open access: yesComplex Analysis and Operator Theory, 2019
17
Hicham Hachadi, El Hassan Youssfi
openaire   +3 more sources

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