Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Claudia V. Ridolfi"'
Publikováno v:
Results in Mathematics. 76
Fil: Barrozo, Maria Fernanda. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - San Luis. Instituto de Matematica Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b54737b0df46066fa859d555c94cd281
https://doi.org/10.1007/s00025-020-01334-w
https://doi.org/10.1007/s00025-020-01334-w
Autor:
Claudia V. Ridolfi
Publikováno v:
Real Anal. Exchange 45, no. 2 (2020), 265-282
We extend results given by Zó and Cuenya in 2007 about a general approach to problems of best vector-valued approximation on small regions from a finite dimensional subspace of polynomials of some degree. This approach is called best local approxima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49849e390b492ba5c0b5dea858c786b7
https://doi.org/10.14321/realanalexch.45.2.0265
https://doi.org/10.14321/realanalexch.45.2.0265
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We study the convergence of a net of subspaces generated by dilations of polynomials in a finite dimensional subspace. As a consequence, we extend the results given by Z´o and Cuenya [Advanced Courses of Mathematical Analysis II (Granada, 2004), 193
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::263afdd9438f52ec54a929b8b79473ed
http://inmabb.criba.edu.ar/revuma/revuma.php?p=doi/v61n1a02
http://inmabb.criba.edu.ar/revuma/revuma.php?p=doi/v61n1a02
Publikováno v:
Numerical Functional Analysis and Optimization. 37:145-158
In this article, we introduce the τ condition, which is weaker than the L2 differentiability. If a function satisfies the τ condition on two points of, we prove the existence and characterization of the best local polynomial approximation on these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fa95780c9d8f6646373adcd4ac981ff
https://doi.org/10.1080/01630563.2015.1091777
https://doi.org/10.1080/01630563.2015.1091777
Publikováno v:
Numerical Functional Analysis and Optimization. 32:1127-1145
We get results in Orlicz spaces L φ about best local approximation on non-balanced neighborhoods when φ satisfies a certain asymptotic condition. This fact generalizes known previous results in L p spaces.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c1e5fc75f18a2a15b4730b849421440
https://doi.org/10.1080/01630563.2011.590264
https://doi.org/10.1080/01630563.2011.590264
Publikováno v:
Journal of Inequalities and Applications. 2012(1):26
We obtain an extension of Pólya-type inequalities for univariate real polynomials in Orlicz spaces. We also give an application to a best local approximation problem. MSC 2010: 41A10; 41A17.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f8036cb53d51fd5537be870808d9c84