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We show that minimum-norm interpolation in the Reproducing Kernel Hilbert Space corresponding to the Laplace kernel is not consistent if input dimension is constant. The lower bound holds for any choice of kernel bandwidth, even if selected…

机器学习 · 统计学 2018-12-31 Alexander Rakhlin , Xiyu Zhai

We show that polynomials do not belong to the reproducing kernel Hilbert space of infinitely differentiable translation-invariant kernels whose spectral measures have moments corresponding to a determinate moment problem. Our proof is based…

统计理论 · 数学 2021-08-13 Holger Dette , Anatoly Zhigljavsky

We give a simple proof of the so called reproducing kernel thesis for Hankel operators

泛函分析 · 数学 2012-01-13 Sergei Treil

We characterize the reproducing kernel Hilbert spaces whose elements are $p$-integrable functions in terms of the boundedness of the integral operator whose kernel is the reproducing kernel. Moreover, for $p=2$ we show that the spectral…

泛函分析 · 数学 2007-05-23 Claudio Carmeli , Ernesto De Vito , Alessandro Toigo

I discuss some of the main interpretations given to explain the indeterministic nature of quantum measurements and show that all has some loopholes in one corner or another. I propose an alternative interpretation based on the notion of…

量子物理 · 物理学 2009-09-30 M. B. Altaie

Let $(s_n)_{n\ge 0}$ denote an indeterminate Hamburger moment sequence and let $\mathcal H=\{s_{m+n}\}$ be the corresponding positive definite Hankel matrix. We consider the question if there exists an infinite symmetric matrix $\mathcal…

经典分析与常微分方程 · 数学 2018-10-09 Christian Berg , Ryszard Szwarc

For a class of $O(n+1,R)$ invariant measures on the Kepler manifold possessing finite moments of all orders, we describe the reproducing kernels of the associated Bergman spaces, discuss the corresponding asymptotic expansions of…

复变函数 · 数学 2016-01-15 Hélène Bommier-Hato , Miroslav Engliš , El-Hassan Youssfi

We summarize significant classical results on (in)determinacy of measures in terms of their finite positive integer order moments. Well-known is the role of the smallest eigenvalues of Hankel matrices, starting from Hamburger's results a…

泛函分析 · 数学 2023-10-09 Pier Luigi Novi Inverardi , Aldo Tagliani , Jordan M. Stoyanov

The problem of establishing out-of-sample bounds for the values of an unkonwn ground-truth function is considered. Kernels and their associated Hilbert spaces are the main formalism employed herein along with an observational model where…

机器学习 · 计算机科学 2022-09-13 Paul Scharnhorst , Emilio T. Maddalena , Yuning Jiang , Colin N. Jones

We give sufficient conditions for a nonlocal perturbation of an integral kernel to be locally in time comparable with the kernel.

概率论 · 数学 2013-09-12 Krzysztof Bogdan , Sebastian Sydor

This paper studies the probabilistic function approximation problem over reproducing kernel Hilbert spaces. We show the existence and uniqueness of the optimizer under mild assumptions. Furthermore, we generalize the celebrated representer…

泛函分析 · 数学 2025-07-16 Dongwei Chen , Kai-Hsiang Wang

In the framework of computational complexity and in an effort to define a more natural reduction for problems of equivalence, we investigate the recently introduced kernel reduction, a reduction that operates on each element of a pair…

计算复杂性 · 计算机科学 2016-04-29 Jeffrey Finkelstein , Benjamin Hescott

We consider conditions on a given system $\mathcal{F}$ of vectors in Hilbert space $\mathcal{H}$, forming a frame, which turn $\mathcal{H}$ into a reproducing kernel Hilbert space. It is assumed that the vectors in $\mathcal{F}$ are…

泛函分析 · 数学 2016-06-16 Palle E. T. Jorgensen , Myung-Sin Song

We present a new formula of Cauchy type for the nonsymmetric Macdonald polynomials which are joint eigenfunctions of q-Dunkl operators. This gives the explicit formula for a reproducing kernel on the polynomial ring of n variables.

q-alg · 数学 2008-02-03 K. Mimachi , M. Noumi

We will consider the indefinite truncated multidimensional moment problem. Necessary and sufficient conditions for a given truncated multisequence to have a signed representing measure $\mu$ with ${\rm card}\,{\rm supp}\, \mu$ as small as…

泛函分析 · 数学 2020-06-17 David P. Kimsey

In this paper we combine the theory of reproducing kernel Hilbert spaces with the field of collocation methods to solve boundary value problems with special emphasis on reproducing property of kernels. From the reproducing property of…

数值分析 · 数学 2019-03-26 Babak Azarnavid , Mahdi Emamjome , Mohammad Nabati , Saeid Abbasbandy

We study the risk of minimum-norm interpolants of data in Reproducing Kernel Hilbert Spaces. Our upper bounds on the risk are of a multiple-descent shape for the various scalings of $d = n^{\alpha}$, $\alpha\in(0,1)$, for the input…

统计理论 · 数学 2020-07-27 Tengyuan Liang , Alexander Rakhlin , Xiyu Zhai

Regularized approaches have been successfully applied to linear system identification in recent years. Many of them model unknown impulse responses exploiting the so called Reproducing Kernel Hilbert spaces (RKHSs) that enjoy the notable…

机器学习 · 计算机科学 2019-09-06 Mauro Bisiacco , Gianluigi Pillonetto

In this note, we show that if a multidimensional sequence generates Hankel tensors and all the Hankel matrices, generated by this sequence, are positive semi-definite, then this sequence is a multidimensional moment sequence.

谱理论 · 数学 2016-02-11 Liqun Qi

This note consists of two largely independent parts. In the first part we give conditions on the kernel $k: \Omega \times \Omega \rightarrow \mathbb{R}$ of a reproducing kernel Hilbert space $H$ continuously embedded via the identity…

泛函分析 · 数学 2022-06-16 Marcin Wnuk
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