Pàgina inicial > Resultats de la cerca: Operators
  Consells de cerca
Cerca avançada
Cerca col·leccions:
Ordena'ls per: Mostrar els resultats: Format de visualizació:
Resultats globals: 50 registres trobats en 0.03 segons.
Articles, 49 registres trobats
Documents de recerca, 1 registres trobats
Articles 49 registres trobats  1 - 10següentfinal  anar al registre:
1.
18 p, 402.3 KB Approximation via {Hausdorff} operators / Debernardi Pinos, Alberto (Bar-Ilan University. Department of Mathematics) ; Liflyand, Elijah (Bar-Ilan University. Department of Mathematics)
Truncating the Fourier transform averaged by means of a generalized Hausdorff operator, we approximate functions and the adjoint to that Hausdorff operator of the given function. We find estimates for the rate of approximation in various metrics in terms of the parameter of truncation and the components of the Hausdorff operator. [...]
2021 - 10.4153/S0008439520000612
Canadian Mathematical Bulletin, Vol. 64, issue 3 (September 2021) , p. 512-529  
Registre complet - Creative Commons
2.
17 p, 416.7 KB Distributional solutions of the Beltrami equation / Baisón Olmo, Antonio L. (Universidad Autónoma Metropolitana - Azcapotzalco (Mèxic). Departamento de Ciencias Básicas (Mexico)) ; Clop, Albert (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Orobitg i Huguet, Joan (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We study the distributional solutions to the (generalized) Beltrami equation under Sobolev assumptions on the Beltrami coefficients. In this setting, we prove that these distributional solutions are true quasiregular maps and they are smoother than expected, that is, they have second order derivatives in Lloc1+ε, for some ε>0.
2019 - 10.1016/j.jmaa.2018.10.050
Journal of mathematical analysis and applications, Vol. 470, Issue 2 (February 2019) , p. 1081-1094  
Registre complet - Creative Commons
3.
38 p, 727.7 KB A T(1) theorem for fractional Sobolev spaces on domains / Prats, Martí (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Saksman, Eero (University of Helsinki. Department of Mathematics and Statistics)
Given any uniform domain Ω, the Triebel-Lizorkin space Fsp,qpΩq with 0 ă s ă 1 and 1 ă p, q ă 8 can be equipped with a norm in terms of first order differences restricted to pairs of points whose distance is comparable to their distance to the boundary. [...]
2017 - 10.1007/s12220-017-9770-y
Journal of Geometric Analysis, Vol. 27 (2017) , p. 2490-2538  
Registre complet -
4.
36 p, 800.9 KB A T(P) theorem for Sobolev spaces on domains / Prats, Martí (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Tolsa Domènech, Xavier (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
Recently, V. Cruz, J. Mateu and J. Orobitg have proved a T(1) theorem for the Beurling transform in the complex plane. It asserts that given 0 < s 1, 1 p ∞ with sp 2 and a Lipschitz domain Ω ⊂ C, the Beurling transform Bf = −p. [...]
2015 - 10.1016/j.jfa.2015.01.007
Journal of Functional Analysis, Vol. 268, Issue 10 (May 2015) , p. 2946-2989  
Registre complet - Creative Commons
5.
8 p, 183.8 KB Producer Liability for AI-based Technologies in the European Union / Navas Navarro, Susana (Universitat Autònoma de Barcelona. Departament de Dret Privat)
The manufacturer's liability for defective products has remained almost unmodified since 1985 when Directive 85/374/EEC (=PLD) was enacted. Perhaps new technology based on artificial intelligence (=AI) could bring about a turning point in the regulation if concepts such as "product" and "defect" or aspects such as "grounds of liability", the so-called "development risks defense", and the "solidarity" are reconsidered. [...]
2020 - 10.5539/ilr.v9n1p77
International law research, Vol. 9 Núm. 1 (2020) , p. 77-83  
Registre complet - Creative Commons
6.
25 p, 403.4 KB Dyadic lower little BMO estimates / Domelevo, Komla (Julius-Maximilians-Universität Würzburg. Institut für Mathematik) ; Kakaroumpas, Spyridon (Julius-Maximilians-Universität Würzburg. Institut für Mathematik) ; Petermichl, Stefanie (Julius-Maximilians-Universität Würzburg. Institut für Mathematik) ; Soler i Gibert, Odí (Julius-Maximilians-Universität Würzburg. Institut für Mathematik)
We characterize dyadic little BMO via the boundedness of the tensor commutator with a single well-chosen dyadic shift. It is shown that several proof strategies work for this problem, both in the unweighted case and with Bloom weights. [...]
2023 - 10.5565/PUBLMAT6722307
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 661-685 (Articles)  
Registre complet -
7.
9 p, 266.6 KB Equality of some classical Lorentz spaces / Boza, Santiago (Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada IV) ; Martín i Pedret, Joaquim (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We prove that although the class of M p -weights of Muckenhoupt is strictly smaller than class of B p -weights of Ariño and Muckenhoupt, both classes produce the same classical Lorentz spaces. An analogous result is obtained for other classes of weights.
2005 - 10.1007/s11117-003-2712-x
Positivity, Vol. 9, Issue 2 (June 2005) , p. 225-232  
Registre complet -
8.
12 p, 307.9 KB Equivalent expressions for norms in classical Lorentz spaces / Boza, Santiago (Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada IV) ; Martín i Pedret, Joaquim (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We characterize the weights w such that ∫0∞ f*(s)pw(s) ds ≃ ∫0∞ (f**(s) - f*(s))pw(s) ds. Our result generalizes a result due to Bennett-De Vore-Sharpley, where the usual Lorentz Lp,q norm is replaced by an equivalent expression involving the functional f** - f*. [...]
2005 - 10.1515/form.2005.17.3.361
Forum Mathematicum, Vol. 17, Issue 3 (July 2005) , p. 361-373  
Registre complet -
9.
23 p, 416.9 KB Weighted norm inequalites and indices / Martín i Pedret, Joaquim (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Milman, Mario (Florida Atlantic University. Department of Mathematics)
We extend and simplify several classical results on weighted norm inequalities for classical operators acting on rearrangement invariant spaces using the theory of indices. As an application we obtain necessary and sufficient conditions for generalized Hardy type operators to be bounded on Λp(w), Λp,∞ (w), Γp(w) and Γp,∞(w).
2006
Journal of Function Spaces and Applications, Vol. 4, Issue 1 (2006) , p. 43-71  
Registre complet - Creative Commons
10.
30 p, 394.0 KB Monotone systems involving variable-order nonlocal operators / Yangari, Miguel (Escuela Politécnica Nacional,Ecuador. Departamento de Matemática)
In this paper, we study the existence and uniqueness of bounded viscosity solutions for parabolic Hamilton-Jacobi monotone systems in which the diffusion term is driven by variable-order nonlocal operators whose kernels depend on the space-time variable. [...]
2022 - 10.5565/PUBLMAT6612205
Publicacions matemàtiques, Vol. 66 Núm. 1 (2022) , p. 129-158 (Articles)  
Registre complet -

Articles : 49 registres trobats   1 - 10següentfinal  anar al registre:
Documents de recerca 1 registres trobats  
1.
157 p, 2.5 MB Singular integral operators on sobolev spaces on domains and quasiconformal mappings / Prats, Martí ; Tolsa Domènech, Xavier, dir. (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Universitat Autònoma de Barcelona. Departament de Matemàtiques
[Barcelona] : Universitat Autònoma de Barcelona, 2015  
Registre complet - Creative Commons

Us interessa rebre alertes sobre nous resultats d'aquesta cerca?
Definiu una alerta personal via correu electrònic o subscribiu-vos al canal RSS.
Dipòsit Digital de Documents de la UAB :: Cerca :: Lliura :: Personalitza :: Ajuda
Powered by Invenio v1.1.6
Mantingut per ddd.bib@uab.cat  :: Metadades subjectes a:
Col·laborem