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Related papers: Fundamental function for Grand Lebesgue Spaces

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In this article we investigate the so-called Bilateral Small Lebesgue Spaces: prove that they are associated to the Grand Lebesgue spaces, calculate its fundamental functions and Boyd's indices find its dual spaces etc.

Functional Analysis · Mathematics 2009-04-30 Eugene Ostrovsky , Leonid Sirota

In this article we introduce and investigate a new class of rearrangement invariant (r.i.) Banach function spaces, so-called Composed Grand Lebesgue Spaces (CGLS), in particular, Integral Grand Lebesgue Spaces (IGLS), which are some…

Functional Analysis · Mathematics 2011-10-24 E. Ostrovsky , L. Sirota

In this paper we consider composition operator generated by nonsingular measurable transformation between two different Grand Lebesgue Spaces (GLS); we investigate the boundedness, compactness and essential norm of composition operators.

Functional Analysis · Mathematics 2013-08-09 E. Ostrovsky , L. Sirota

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…

Functional Analysis · Mathematics 2022-12-26 M. R. Formica , E. Ostrovsky , L. Sirota

We introduce a so-called restricted, in particular, discrete version of (Banach) Grand Lebesgue Spaces (GLS), investigate its properties and derive the conditions of coincidence with the classical ones. We show also that these spaces forms…

Functional Analysis · Mathematics 2019-12-05 M. R. Formica , E. Ostrovsky , L. Sirota

In this short article we generalize the Sobolev's inequalities for the module of continuity for the functions belonging to the classical Lebesgue space on the (Bilateral) Grand Lebesgue spaces. We construct also some examples in order to…

Functional Analysis · Mathematics 2010-06-23 Ostrovsky E. , Sirota L

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.

Functional Analysis · Mathematics 2009-12-15 E. Ostrovsky , L. Sirota , E. Rogover

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…

Functional Analysis · Mathematics 2022-06-02 M. R. Formica , E. Ostrovsky , L. Sirota

We establish the bilateral exact reciprocal interrelations between a tail behavior of a measurable functions and its norm in the suitable Grand Lebesgue Space (GLS) as well as Orlicz one, builded over the set with infinite measure. We bring…

Functional Analysis · Mathematics 2021-10-07 M. R. Formica , E. Ostrovsky , L. Sirota

We generalize in this short paper the classical Luzin's theorem about existence of integral on the measurable function and its multidimensional analogues on the many popular classes of rearrangement invariant (r.i.) spaces, namely, on the…

Functional Analysis · Mathematics 2015-02-12 E. Ostrovsky , L Sirota

We present a collection of observations concerning the peculiar behavior of the Lebesgue function in the setting of the interval $[-1,1]\subset \mathbb{R}$ and the square $[-1,1]^2\subset \mathbb{R}^2$. We provide numerical results and…

Numerical Analysis · Mathematics 2026-05-25 Leokadia Białas-Cież , Stefano De Marchi , Mateusz Suder

We extend in this article the classical Sobolev inequalities for the module of continuity for the functions belonging to the integer order Sobolev's space on the Sobolev-Bilateral Grand Lebesgue spaces. As a consequence, we deduce the…

Functional Analysis · Mathematics 2013-01-03 E. Ostrovsky , L. 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…

Functional Analysis · Mathematics 2017-06-26 E. Ostrovsky , L. Sirota

We establish imbedding properties between Grand Lebesgue Spaces and (generalized) Lorentz-Zygmund ones. We extend some known previous results concerning imbedding theorems between Grand Lebesgue and classical Lebesgue-Riesz spaces and we…

Functional Analysis · Mathematics 2022-12-26 Maria Rosaria Formica , Eugeny Ostrovsky , Leonid Sirota

We extend in this article the classical imbedding theorems for fractional Lebesgue-Sobolev's spaces into the so-called Grand Lebesgue spaces, with sharp constant evaluation.

Functional Analysis · Mathematics 2014-04-16 E. Ostrovsky , L. Sirota

Traditional Lp spaces are fundamental in functional analysis, demarcated by the relationship $1/p + 1/q = 1$. This research pioneers the concept of $\theta$-Lebesgue space, stemming from a simultaneous weakening of both the classical $L_p$…

Functional Analysis · Mathematics 2024-01-17 Shouvik Datta Choudhury

We introduce a generating function associated to the homogeneous generators of a graded algebra that measures how far is this algebra from being finitely generated. For the case of some algebras of Frobenius endomorphisms we describe this…

Commutative Algebra · Mathematics 2019-10-01 Josep Àlvarez Montaner

It is proved the existence of large algebraic structures \break --including large vector subspaces or infinitely generated free algebras-- inside, among others, the family of Lebesgue measurable functions that are surjective in a strong…

We describe in this short article the associate and dual (conjugate) spaces to the Grand Lebesgue Spaces by means of its embedding to the suitable exponential Orlicz ones.

Functional Analysis · Mathematics 2017-12-05 E. Ostrovsky , L. Sirota

The Generalized Bessel Function (GBF) extends the single variable Bessel function to several dimensions and indices in a nontrivial manner. Two-dimensional GBFs have been studied extensively in the literature and have found application in…

General Mathematics · Mathematics 2021-04-29 Parker Kuklinski , David A. Hague
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