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Pointwise Multipliers on Weak Morrey Spaces [PDF]
Analysis 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.
Ryota Kawasumi, Eiichi Nakai
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Spaces of Pointwise Multipliers on Morrey Spaces and Weak Morrey Spaces
Mathematics, 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 +2 more
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Uniform pointwise estimates for ultraspherical polynomials [PDF]
Comptes 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
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Pointwise convergence of multiplier operators [PDF]
Colloquium Mathematicum, 1990 Kurtz, Douglas S.
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Pointwise multipliers on weak Orlicz spaces
Hiroshima Mathematical Journal, 2020 We characterize the pointwise multipliers from a weak Orlicz space to another weak Orlicz space.
Ryota Kawasumi, Eiichi Nakai
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Innovative approaches and methods to the implementation of energy-saving measures and technologies at mining enterprises [PDF]
E3S 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
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Pointwise multipliers of Musielak–Orlicz spaces and factorization [PDF]
Revista Matemática Complutense, 2020 AbstractWe prove that the space of pointwise multipliers between two distinct Musielak–Orlicz spaces is another Musielak–Orlicz space and the function defining it is given by an appropriately generalized Legendre transform. In particular, we obtain characterization of pointwise multipliers between Nakano spaces.
Karol Leśnik, Jakub Tomaszewski
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Multipliers in weighted Sobolev spaces on the axis
Қарағанды 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
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Известия 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
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Multipliers of trigonometric series and pointwise convergence [PDF]
Transactions of the American Mathematical Society, 1969 Introduction. In a recent paper M. Weiss and A. Zygmund [7] have studied the pointwise convergence of a trigonometric series a einx when the multipliers An= Injti (y real) are applied to it. The proof of their result makes use of Peano derivatives in LP, which bear a close connection with the tP classes of A. P. Calderon and A. Zygmund [1].
Riviere, N. M., Sagher, Y.
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