Results 211 to 220 of about 33,958 (245)
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Approximation in weighted generalized grand Lebesgue spaces
Colloquium Mathematicum, 2015Summary: The direct and inverse problems of approximation theory in the subspace of weighted generalized grand Lebesgue spaces of \(2\pi \)-periodic functions with the weights satisfying Muckenhoupt's condition are investigated. Appropriate direct and inverse theorems are proved.
Israfilov, Daniyal M., Testici, Ahmet
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Embedding derivatives of weighted Hardy spaces into Lebesgue spaces
Mathematical Proceedings of the Cambridge Philosophical Society, 1994AbstractLet 1 ≤ p < ∞ and let ω be a non-negative function defined on the unit circle T which satisfies the Ap condition of Muckenhoupt. The weighted Hardy space Hp(ω) consists of those functions f in the classical Hardy space H1 whose boundary values belong to Lp(ω). Recently McPhail (Studia Math.
Girela, Daniel +2 more
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Fourier–Bessel transforms from generalized Lipschitz spaces and weighted Lebesgue spaces
ANNALI DELL'UNIVERSITA' DI FERRARA, 2023zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Matrix transforms in weighted variable exponent Lebesgue spaces
2022Summary: In this work, approximation properties of matrix transforms in the weighted variable exponent Lebesgue space of periodic functions are investigated.
Testici, Ahmet, Israfilov, Daniyal M.
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Singular Integrals in Weighted Lebesgue Spaces with Variable Exponent
Georgian Mathematical Journal, 2003Abstract In the weighted Lebesgue space with variable exponent the boundedness of the Calderón–Zygmund operator is established. The variable exponent 𝑝(𝑥) is assumed to satisfy the logarithmic Dini condition and the exponent β of the power weight ρ(𝑥) = |𝑥 – 𝑥0| β is related only to the value 𝑝(𝑥0).
Kokilashvili, V., Samko, S.
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Porosity in Lebesgue spaces regarding weighted convolution
Asian-European Journal of MathematicsIn this paper, for some classes of weight functions [Formula: see text] on [Formula: see text], we study [Formula: see text]-[Formula: see text]-lower porosity of the set [Formula: see text] in [Formula: see text], where [Formula: see text] with [Formula: see text], [Formula: see text] is a compact symmetric neighborhood of the identity element of a ...
AliReza Bagheri Salec +2 more
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The maximal operator on weighted variable Lebesgue spaces
Fractional Calculus and Applied Analysis, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cruz-Uribe, David +2 more
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On Multipliers from Weighted Sobolev Spaces to Lebesgue Spaces
2017The aim of the paper is to obtain descriptions of multipliers acting from weighted Sobolev spaces \(W_{p,\rho }^{l} \) to \(L_{q,\omega }.\) The space \(W_{p,\rho }^{l}\) is defined as the completion of the set \(C_0^{\infty }\) in the following finite norm \(\Vert u;\, W_{p,\rho }^{l}\Vert = \Vert \rho |\nabla _{l} u|\Vert _{p} + \Vert u\Vert _{p ...
Leili Kussainova, Aigul Myrzagaliyeva
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Polynomial expansiveness and admissibility of weighted Lebesgue spaces
Czechoslovak Mathematical Journal, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Boundedness of integral operators from weighted Sobolev space to weighted Lebesgue space
Complex Variables and Elliptic Equations, 2011For the integral operator , x ∈ (a, b) ⊆ ℝ, under some assumptions on the kernel K(x, t) ≥ 0 we find necessary and sufficient conditions for the validity of the following weighted inequality where A○C(a, b) is a set of absolutely continuous functions with compact ...
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