Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Jordão, Thaís"'
Autor:
Gonzalez, Karina, Jordão, Thaís
We present estimates for the covering numbers of the unit ball of Reproducing Kernel Hilbert Spaces (RKHSs) of functions on $M^d$ a d-dimensional compact two-point homogeneous space. The RKHS is generated by a continuous zonal/isotropic positive defi
Externí odkaz:
http://arxiv.org/abs/2405.08140
Autor:
Jordão, Thaís
Neste trabalho, inicialmente, apresentamos uma classe de núcleos positivos definidos, os núcleos de Mercer. As funções nesta classe se enquadram na representação de núcleos dada pelo conhecido Teorema de Mercer. Exploramos algumas de suas prop
In this paper, we use the infamous continuous and nowhere differentiable Weierstrass function as a prototype to define a Weierstrass fractal kernel. We investigate the properties of the reproducing kernel Hilbert space (RKHS) associated with this ker
Externí odkaz:
http://arxiv.org/abs/2110.04609
Autor:
Gonzalez, Karina, Jordão, Thaís
Publikováno v:
In Journal of Mathematical Analysis and Applications 15 June 2024 534(2)
Autor:
Jordão, Thaís
A characterization of the generalized Lipschitz and Besov spaces in terms of decay of Fourier transforms is given. In particular, necessary and sufficient conditions of Titchmarsh type are obtained. The method is based on two-sided estimate for the r
Externí odkaz:
http://arxiv.org/abs/1907.10127
Publikováno v:
In Journal of Complexity February 2023 74
Autor:
Jordão, Thaís
Um espaço de Hilbert de reprodução (EHR) é um espaço de Hilbert de funções construído de maneira específica e única a partir de um núcleo positivo definido. As funções do EHR tem a seguinte peculiaridade: seus valores podem ser reproduzi
Autor:
Jordão, Thaís, Menegatto, Valdir A.
We provide estimates for weighted Fourier sums of integrable functions defined on the sphere when the weights originate from a multiplier operator acting on the space where the function belongs. That implies refined estimates for weighted Fourier sum
Externí odkaz:
http://arxiv.org/abs/1403.5213
Autor:
Jordão, Thaís, Manegatto, Valdir A.
Decay rates for the sequence of eigenvalues of positive and compact integral operators has been largely investigated for a long time in the literature. In this paper, the focus will be on positive integral operators acting on square integrable functi
Externí odkaz:
http://arxiv.org/abs/1303.5845
Autor:
JORDÃO, THAÍS1 tjordao@icmc.usp.br
Publikováno v:
Constructive Mathematical Analysis. Mar2020, Vol. 3 Issue 1, p20-35. 16p.