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We study moment rearrangement invariant spaces, which contain as particular cases the generalized Grand Lebesgue Spaces, and provide norm estimates for some operators, not necessarily linear, acting between some measurable rearrangement…

泛函分析 · 数学 2022-12-26 M. R. Formica , E. Ostrovsky , L. Sirota

We extend the classical Lebesgue-Riesz norm estimations for integral operators acting between different classical Lebesgue-Riesz spaces into the Grand Lebesgue Spaces, in the general case. As an example we consider matrix operators acting…

泛函分析 · 数学 2023-08-17 Maria Rosaria Formica , Eugeny Ostrovsky , Leonid Sirota

We derive in this preprint the exact up to multiplicative constant non-asymptotical estimates for the norms of some non-linear in general case operators, for example, the so-called maximal functional operators, in two probabilistic…

泛函分析 · 数学 2017-06-26 E. Ostrovsky , L. Sirota

We give in this short paper a sharp estimate for the norm of a multivariate dilation operator generated by multi-matrix (tensor) linear argument transformation (dilation operator) between two different weight Lebesgue-Riesz and Grand…

泛函分析 · 数学 2015-03-19 E. Ostrovsky , L. Sirota

We extend the classical Hardy-Sobolev-Poincare-Wirtinger inequalities from the ordinary Lebesgue-Riesz spaces into the Grand Lebesgue ones, with exact constants evaluation.

泛函分析 · 数学 2022-06-06 M. R. Formica , E. Ostrovsky , L. Sirota

In this paper we estimate the norm of operator acting from one Bilateral Grand Lebesgue Space (BGLS) into other Bilateral Grand Lebesgue Space. We also give some examples to show the sharpness of offered inequalities.

泛函分析 · 数学 2009-12-15 E. Ostrovsky , L. Sirota , E. Rogover

We calculate in this paper the norm of composition, multiplicative and product operator, generated by multiplicative and measurable argument transformation between two different ordinary Lebesgue-Riesz and Grand Lebesgue spaces. We set…

泛函分析 · 数学 2016-08-12 E. Ostrovsky , L. Sirota

We intend to derive the moment and exponential tail estimates for the so-called bivariate or more generally multivariate functional operations, not necessary to be linear or even multilinear. We will show also the strong or at last weak…

泛函分析 · 数学 2018-05-08 E. Ostrovsky , L. Sirota

We derive a sharp Grand Lebesgue Space norm estimations for normalized eigen functions for the Laplace-Beltrami operator defined on the compact smooth Riemann manifold. These estimates allow us to deduce in particular the exponential…

泛函分析 · 数学 2021-10-06 M. R. Formica , E. Ostrovsky , L. Sirota

We study the problem estimation of classical Lebesgue-Riesz and Grand Lebesgue Norm for the fractional integrals and derivatives for the functions from the classical Lebesgue-Riesz spaces as well as from the modified Besov's spaces.

泛函分析 · 数学 2015-04-17 E. Ostrovsky , L. Sirota

We deduce an extension theorem for the so-called Sobolev-Grand Lebesgue Spaces defined on the suitable subsets of the whole finite-dimensional Euclidean space, and estimate the norms of correspondent extension operator, which may be choosed…

泛函分析 · 数学 2022-06-02 M. R. Formica , E. Ostrovsky , L. Sirota

We obtain in this short article the non-asymptotic estimations for the norm of (generalized) Cesaro-Hardy integral operators in the so-called Bilateral Grand Lebesgue Spaces. We also give examples to show the sharpness of these…

泛函分析 · 数学 2013-07-23 E. Ostrovsky , L. Sirota

We give in this short paper the exact value for norms of two operators of Hardy-Sobolev type acting between two weight Grand Lebesgue Space (GLS) based on the whole multidimensional Euclidean space.

泛函分析 · 数学 2016-08-12 L. Sirota

We obtain in this short article the non-asymptotic exact estimations for the norm of (generalized) weighted Hardy-Littlewood average integral operator in the so-called Bilateral Grand Lebesgue Spaces. We also give examples to show the…

泛函分析 · 数学 2013-09-03 E. Ostrovsky , L. Sirota

In this paper we obtain the non-asymptotic norm estimations of Besov's type between the norms of a functions in different Bilateral Grand Lebesgue spaces (BGLS). We also give some examples to show the sharpness of these inequalities.

泛函分析 · 数学 2010-05-19 E. Ostrovsky , L. Sirota

We obtain in this short article the bilateral non-asymptotic estimations for the norm in Lebesgue-Riesz and bilateral Grand Lebesgue spaces of the so-called fractional Laplace integral transform. We give also examples to show the sharpness…

泛函分析 · 数学 2014-05-08 E. Ostrovsky , L. Sirota

In this paper we obtain the non - asymptotic estimations for oscillating integral operators in the so - called Bilateral Grand Lebesgue Spaces. We also give examples to show the sharpness of these inequalities.

泛函分析 · 数学 2009-06-11 E. Ostrovsky , L. Sirota

We calculate the so-called Rademacher's Grand Lebesgue Space norm for a centered (shifted) indicator (Bernoulli's, binary) random variable. This norm is optimal for the centered and bounded random variables (r.v.). Using this result we…

概率论 · 数学 2015-07-29 Eugene Ostrovsky , Leonid Sirota

We obtain results concerning the so-called factorization for the convergence of random variables almost everywhere (almost surely or with probability one), belonging to the classical Lebesgue-Riesz spaces and we extend these results to the…

概率论 · 数学 2024-01-25 Maria Rosaria Formica , Eugeny Ostrovsky , Leonid Sirota

In this paper we obtain the non - asymptotic estimations for Riesz's and Bessel's potential integral operators in the so - called Bilateral Grand Lebesgue Spaces. We also give examples to show the sharpness of these inequalities.

泛函分析 · 数学 2009-07-21 E. Ostrovsky , E. Rogover , L. Sirota
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