Results 91 to 100 of about 18,802 (182)

Convolutions and best approximations in variable exponent lebesgue spaces

open access: yes, 2016
In the variable exponent Lebesgue spaces a convolution is defined and its estimations in the variable exponent Lebesgue spaces by the best approximation numbers are obtained.
Israfilov, Daniyal M., Yırtıcı, Elife
openaire   +3 more sources

Phase transitions in porous media. [PDF]

open access: yesNonlinear Differ Equ Appl, 2022
Gavioli C, Krejčí P.
europepmc   +1 more source

Kolmogorov compactness criterion in variable exponent Lebesgue spaces

open access: yes, 2009
The well-known Kolmogorov compactness criterion is extended to the case of variable exponent Lebesgue spaces $L^{p(\cdot)}( )$, where $ $ is a bounded open set in $\mathbb R^n$ and $p(\cdot)$ satisfies some "standard" conditions. Our final result should be called Kolmogorov-Tulajkov Sudakov compactness criterion, since it includes the case $p_-=1 ...
openaire   +2 more sources

The Fourier transform in variable exponent Lebesgue spaces

open access: yes
In this work we define a Fourier transform for each $f\in L^{p(\cdot)}(\mathbb{R})$, for a large class of exponent functions $p(\cdot)$, as the distributional derivative of a Hölder continuous function. A norm is defined in the space of such Fourier transforms so that it is isometrically isomorphic to $L^{p(\cdot)}(\mathbb{R})$.
Kowacs, André Pedroso   +1 more
openaire   +2 more sources

Records and Occupation Time Statistics for Area-Preserving Maps. [PDF]

open access: yesEntropy (Basel), 2023
Artuso R   +3 more
europepmc   +1 more source

Simultaneous Approximation In Lebesgue Space With Variable Exponent

open access: yes, 2018
In this paper we deal with the simultaneous approximations by trigonometric polynomials of 27 periodic functions in the variable exponent Lebesgue spaces. In terms of the higher moduli of smoothness the direct and inverse theorems of simultaneous approximation are proved. Moreover, the generalized variable exponent Lipschitz classes are defined and the
Israfilov, Daniyal M., Testici, Ahmet
openaire   +2 more sources

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