Resultats globals: 4 registres trobats en 0.02 segons.
Articles, 4 registres trobats
Articles 4 registres trobats  
1.
12 p, 346.2 KB Weigthed Hardy's inequalities and Hardy transforms of weights / Martín i Pedret, Joaquim (Universitat de Barcelona. Departament de Matemàtica Aplicada i Anàlisi) ; Cerdà Martín, Joan Lluís (Universitat de Barcelona. Departament de Matemàtica Aplicada i Anàlisi)
Many problems in analysis are described as weigthed norm inequalities thet have given rise to different classes of weights, such asAp- weights of Mukenhoupt, Bp-weights of Ario and Mukenhoupt, ect. Our purpose is to show that different classes of weigths are relaterd by mean of composition with classical transforms. [...]
2000 - 10.4064/sm-139-2-189-196
Studia Mathematica, Vol. 139, Issue 2 (2000) , p. 189-196  
2.
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  
3.
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  
4.
22 p, 168.0 KB Weighted Hardy's inequalities for negative indices / Prokhorov, Dmitry V.
In the paper we obtain a precise characterization of Hardy type inequalities with weights for the negative indices and the indices between 0 and 1 and establish a duality between these cases.
2004 - 10.5565/PUBLMAT_48204_08
Publicacions matemàtiques, V. 48 N. 2 (2004) , p. 423-443  

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