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Pointwise Multipliers on Weak Morrey Spaces [PDF]

open access: yesAnalysis and Geometry in Metric Spaces, 2020
We consider generalized weak Morrey spaces with variable growth condition on spaces of homogeneous type and characterize the pointwise multipliers from a generalized weak Morrey space to another one.
Kawasumi Ryota, Nakai Eiichi
doaj   +2 more sources

Innovative approaches and methods to the implementation of energy-saving measures and technologies at mining enterprises [PDF]

open access: yesE3S Web of Conferences, 2021
The paper presents the evaluation of the implementation of innovative methods of energy savings in electric drive and power supply systems at mining enterprises.
Semenov Alexander   +5 more
doaj   +1 more source

Spaces of Pointwise Multipliers on Morrey Spaces and Weak Morrey Spaces

open access: yesMathematics, 2021
The spaces of pointwise multipliers on Morrey spaces are described in terms of Morrey spaces, their preduals, and vector-valued Morrey spaces introduced by Ho. This paper covers weak Morrey spaces as well.
Eiichi Nakai, Yoshihiro Sawano
doaj   +1 more source

Uniform pointwise estimates for ultraspherical polynomials

open access: yesComptes Rendus. Mathématique, 2022
We prove pointwise bounds for two-parameter families of Jacobi polynomials. Our bounds imply estimates for a class of functions arising from the spectral analysis of distinguished Laplacians and sub-Laplacians on the unit sphere in arbitrary dimension ...
Casarino, Valentina   +2 more
doaj   +1 more source

Multipliers in weighted Sobolev spaces on the axis

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
This work establishes necessary and sufficient conditions for the boundedness of one variable differential operator acting from a weighted Sobolev space Wlp,v to a weighted Lebesgue space on the positive real half line.
A. Myrzagaliyeva
doaj   +1 more source

Pontryagin’s Maximum Principle and Indirect Descent Method for Optimal Impulsive Control of Nonlocal Transport Equation

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
We study a singular problem of optimal control of a nonlocal transport equation in the space of probability measures, in which the structure of the drivng vector field with respect to the control variable is somewhat equivalent to the affine one, while ...
M. V. Staritsyn   +2 more
doaj   +1 more source

Multipliers in Holomorphic Mean Lipschitz Spaces on the Unit Ball

open access: yesAbstract and Applied Analysis, 2012
For 1≤p≤∞ and s>0, let Λsp be holomorphic mean Lipschitz spaces on the unit ball in ℂn. It is shown that, if s>n/p, the space Λsp is a multiplicative algebra. If s>n/p, then the space Λsp is not a multiplicative algebra.
Hong Rae Cho
doaj   +1 more source

Some Estimates for the Jump of the Derivative of the Lagrange Multiplier Function in Optimal Control Problems with Second-order State Constraints

open access: yesИзвестия Иркутского государственного университета: Серия "Математика"
The optimal control problem for a nonlinear dynamic system of a cascade type with endpoint and irregular pointwise state constraints (the so-called state constraints of depth 2) is studied.
D.Yu. Karamzin
doaj   +1 more source

On multipliers in weighted Sobolev spaces. Part II

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2016
Let X, Y be Banach spaces whose elements are functions y : Ω → R. We say that a function z : Ω → R is apointwise multiplier on the pair (X, Y ), if T x = zx ∈ Y and the operator T : X → Y is bounded. M (X → Y )denotes the multiplier space on the pair (X,
A. Myrzagaliyeva
doaj  

On multipliers in weighted Sobolev spaces. Part I

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2016
Let X, Y be Banach spaces whose elements are functions y : Ω → R. We say that a function z : Ω → R is apointwise multiplier on the pair (X, Y ), if T x = zx ∈ Y and the operator T : X → Y is bounded. M(X → Y )denotes the multiplier space on the pair (X,
L. Kussainova, A. Myrzagaliyeva
doaj  

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