Results 21 to 30 of about 11,706 (202)
Modeling Variational Inpainting Methods With Splines
Frontiers in Applied Mathematics and Statistics, 2019 Mathematical methods of image inpainting often involve the discretization of a given continuous model. Typically, this is done by a pointwise discretization.
Florian Boßmann +2 more
doaj +1 more source
Permanence of approximation properties for discrete quantum groups [PDF]
, 2014 We prove several results on the permanence of weak amenability and the Haagerup property for discrete quantum groups. In particular, we improve known facts on free products by allowing amalgamation over a finite quantum subgroup.
Freslon, Amaury
core +2 more sources
Estimates of Reachable Set and Sufficient Optimality Condition for Discrete Control Problems
Известия Иркутского государственного университета: Серия "Математика", 2017 The paper follows the “canonical optimality theory” (in the terminology due to A. A. Milyutin) for discrete-time optimal control problems. In respect of optimality conditions, the feature of this approach is to employ sets of strongly monotone functions ...
S. P. Sorokin
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Pointwise Multipliers on Spaces of Homogeneous Type in the Sense of Coifman and Weiss
Abstract and Applied Analysis, 2014 By applying the remarkable orthonormal basis constructed recently by Ausher and Hytönen on spaces of homogeneous type in the sense of Coifman and Weiss, pointwise multipliers of inhomogeneous Besov and Triebel-Lizorkin spaces are obtained.
Yanchang Han +2 more
doaj +1 more source
Sparse bilinear forms for Bochner Riesz multipliers and applications [PDF]
, 2016 We use the very recent approach developed by Lacey in [23] and extended by Bernicot-Frey-Petermichl in [3], in order to control Bochner-Riesz operators by a sparse bilinear form.
Benea, Cristina +2 more
core +4 more sources
Homogeneity Property of Besov and Triebel-Lizorkin Spaces
Journal of Function Spaces and Applications, 2012 We consider the classical Besov and Triebel-Lizorkin spaces defined via differences and prove a homogeneity property for functions with bounded support in the frame of these spaces. As the proof is based on compact embeddings between the studied function
Cornelia Schneider, Jan Vybíral
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Failure of the trilinear operator space Grothendieck theorem
Discrete Analysis, 2019 Failure of the trilinear operator space Grothendieck theorem, Discrete Analysis 2019:8, 16 pp. Let $\beta:\ell_\infty^n\times \ell_\infty^n\to\mathbb C$ be a bilinear form.
Jop Briët, Carlos Palazuelos
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Factorizations induced by complete Nevanlinna-Pick factors
, 2018 We prove a factorization theorem for reproducing kernel Hilbert spaces whose kernel has a normalized complete Nevanlinna-Pick factor. This result relates the functions in the original space to pointwise multipliers determined by the Nevanlinna-Pick ...
Aleman, Alexandru +3 more
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Pointwise multipliers on weighted BMO spaces [PDF]
Studia Mathematica, 1997 Summary: Let \(E\) and \(F\) be spaces of real- or complex-valued functions defined on a set \(X\). A real- or complex-valued function \(g\) defined on \(X\) is called a pointwise multiplier from \(E\) to \(F\) if the pointwise product \(fg\) belongs to \(F\) for each \(f\in E\).
openaire +1 more source
Advanced Science, EarlyView.Tunable dynamics of an interface‐type memristor array enabled by dual‐ion modulation through Ag nanoclusters are demonstrated. A 32 × 32 one‐resistor (1R) array exhibits 100% yield with high temporal/spatial uniformity (<3%) and a rectification ratio of 105.
Yoonho Cho +7 more
wiley +1 more source