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Maximal estimates for a generalized spherical mean Radon transform acting on radial functions
(2020)
We study a generalized spherical means operator,
viz.\ generalized spherical mean Radon transform, acting on radial functions.
As the main results, we find conditions for the associated maximal operator and its local ...
Hardy-type inequalities for fractional powers of the Dunkl-Hermite operator
(2018)
We prove Hardy-type inequalities for a fractional Dunkl–Hermite operator, which incidentally gives Hardy inequalities for the fractional harmonic oscillator as well. The idea is to use h-harmonic expansions to reduce the ...
Two-weight mixed norm estimates for a generalized spherical mean Radon transform acting on radial functions
(2018)
We investigate a generalized spherical means operator,
viz. generalized spherical mean Radon transform, acting on radial functions.
We establish an integral representation of this operator and find precise
estimates of ...
Vector-valued extensions for fractional integrals of Laguerre expansions
(2018)
We prove some vector-valued inequalities for fractional integrals defined for several orthonormal systems of Laguerre functions. On the one hand, we obtain weighted $L^p-L^q$ vector-valued extensions, in a multidimensional ...
Nonlocal discrete diffusion equations and the fractional discrete Laplacian, regularity and applications
(2018)
The analysis of nonlocal discrete equations driven by
fractional powers of the discrete Laplacian on a mesh of size $h>0$
\[
(-\Delta_h)^su=f,
\]
for $u,f:\Z_h\to\R$, $0<s<1$, is performed. The pointwise nonlocal ...