Results 51 to 60 of about 82,240 (178)

$$\theta$$-Lebesgue spaces

open access: yesJournal of Mathematical Sciences
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 $L_p$ relation and its $\theta$-variant, $1/(\theta(p)) + 1/(\theta(q)) = 1$.
openaire   +3 more sources

Norm convolution inequalities in Lebesgue spaces [PDF]

open access: yesRevista Matemática Iberoamericana, 2018
We obtain upper and similar lower estimates of the ( L_p, L_q ) norm for the convolution operator. The upper estimate improves on known convolution inequalities.
Nursultanov E.   +2 more
openaire   +4 more sources

Boundedness of Multilinear Calderón-Zygmund Operators on Grand Variable Herz Spaces

open access: yesJournal of Function Spaces, 2022
In this paper, we prove the boundedness of multilinear Calderón-Zygmund operators on product of grand variable Herz spaces. These results generalize the boundedness of multilinear Calderón-Zygmund operators on product of variable exponent Lebesgue spaces
Hammad Nafis   +2 more
doaj   +1 more source

Boundedness of composition operators on Morrey spaces and weak Morrey spaces

open access: yesJournal of Inequalities and Applications, 2021
In this study, we investigate the boundedness of composition operators acting on Morrey spaces and weak Morrey spaces. The primary aim of this study is to investigate a necessary and sufficient condition on the boundedness of the composition operator ...
Naoya Hatano   +3 more
doaj   +1 more source

A Bernstein type inequality associated with wavelet bi-frame decomposition

open access: yesJournal of Inequalities and Applications, 2016
Bernstein inequality is an essential inequality for Besov spaces. Smoothness based approaches are widely used in establishing the inequality. Yet, despite numerous studies over the last two decades, there is still little research focusing on decay-based ...
Kai-Cheng Wang   +3 more
doaj   +1 more source

Weighted Central BMO Spaces and Their Applications

open access: yesJournal of Function Spaces, 2021
In this paper, the central BMO spaces with Muckenhoupt Ap weight is introduced. As an application, we characterize these spaces by the boundedness of commutators of Hardy operator and its dual operator on weighted Lebesgue spaces.
Huan Zhao, Zongguang Liu
doaj   +1 more source

Estimates for Parameter Littlewood-Paley gκ⁎ Functions on Nonhomogeneous Metric Measure Spaces

open access: yesJournal of Function Spaces, 2016
Let (X,d,μ) be a metric measure space which satisfies the geometrically doubling measure and the upper doubling measure conditions. In this paper, the authors prove that, under the assumption that the kernel of Mκ⁎ satisfies a certain Hörmander-type ...
Guanghui Lu, Shuangping Tao
doaj   +1 more source

Cpmposed Grand Lebesgue Spaces

open access: yes, 2011
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 generalizations of known Grand Lebesgue Spaces (GLS). We consider the fundamental functions of CGLS, calculate its Boyd's
Ostrovsky, E., Sirota, L.
openaire   +2 more sources

Well-posedness of generalized magnetohydrodynamic equations in variable Lebesgue spaces

open access: yesElectronic Journal of Differential Equations
This article concerns the well-posedness of the generalized magnetohydrodynamic equations in variable Lebesgue spaces. By using some basic properties of variable Lebesgue spaces and decay estimates of the fractional heat kernel, we prove the existence ...
Jinyi Sun, Yuanwei Mai, Minghua Yang
doaj  

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