Results 1 to 10 of about 105,780 (179)

The embedding theorems for anisotropic Nikol’skii-Besov spaces with generalized mixed smoothness [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
The theory of embedding of spaces of differentiable functions studies the important relations of differential (smoothness) properties of functions in various metrics and has a wide application in the theory of boundary value problems of ...
K.A. Bekmaganbetov   +2 more
doaj   +3 more sources

The theorems about traces and extensions for functions from Nikolsky-Besov spaces with generalized mixed smoothness [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
The theory of embedding of spaces of differentiable functions studies important relations of differential (smoothness) properties of functions in various metrics and has wide application in the theory of boundary value problems of mathematical ...
K.A. Bekmaganbetov   +2 more
doaj   +3 more sources

Counterexamples for multi-parameter weighted paraproducts

open access: yesComptes Rendus. Mathématique, 2020
We build the plethora of counterexamples to bi-parameter two weight embedding theorems. Two weight one parameter embedding results (which is the same as results of boundedness of two weight classical paraproducts, or two weight Carleson embedding ...
Mozolyako, Pavel   +2 more
doaj   +1 more source

Backcasting COVID-19: a physics-informed estimate for early case incidence

open access: yesRoyal Society Open Science, 2022
It is widely accepted that the number of reported cases during the first stages of the COVID-19 pandemic severely underestimates the number of actual cases. We leverage delay embedding theorems of Whitney and Takens and use Gaussian process regression to
G. A. Kevrekidis   +6 more
doaj   +1 more source

The Brouwer invariance theorems in reverse mathematics

open access: yesForum of Mathematics, Sigma, 2020
In [12], John Stillwell wrote, ‘finding the exact strength of the Brouwer invariance theorems seems to me one of the most interesting open problems in reverse mathematics.’ In this article, we solve Stillwell’s problem by showing that (some forms of) the
Takayuki Kihara
doaj   +1 more source

Embedding of vector-valued Morrey spaces and separable differential operators [PDF]

open access: yesBulletin of Mathematical Sciences, 2019
The paper is the first part of a program devoted to the study of the behavior of operator-valued multipliers in Morrey spaces. Embedding theorems and uniform separability properties involving E-valued Morrey spaces are proved.
Maria Alessandra Ragusa, Veli Shakhmurov
doaj   +1 more source

On new sharp embedding theorems for multifunctional Herz-type and Bergman-type spaces in tubular domains over symmetric cones

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021
We introduce new multifunctional mixed norm analytic Herz-type spaces in tubular domains over symmetric cones and provide new sharp embedding theorems for them. Some results are new even in case of onefunctional holomorphic spaces. Some new related sharp
Shamoyan, R.F., Tomashevskaya, E.B.
doaj   +1 more source

ON HARDY TYPE SPACES IN SOME DOMAINS IN Cn AND RELATED PROBLEMS [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2019
We discuss some new problems in several new mixed norm Hardy type spaces in products of bounded pseudoconvex domains with smooth boundary in Cn and then prove some new sharp decomposition theorems for multifunctional Hardy type spaces in the unit ball ...
R. F. Shamoyan, V.V. Loseva
doaj   +1 more source

Integral operators, embedding theorems, Taylor coefficients, isometries, boundary behaviour of Area-Nevanlinna type spaces in higher dimension and related problems

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021
This paper contains an overview of recent results of Area-Nevanlinna classes in higher dimension. We here consider various aspects of this new interesting research area of analytic function theory in higher dimension (integral operations, embedding ...
Shamoyan, R.F.
doaj   +1 more source

Elementary proofs of Embedding Theorems for Potential Spaces of Radial Functions [PDF]

open access: yes, 2014
We present elementary proofs of weighted embedding theorems for radial potential spaces and some generalizations of Ni's and Strauss' inequalities in this setting.Comment: 19 ...
De Napoli, Pablo L., Drelichman, Irene
core   +1 more source

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