Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Miguel Marano"'
Autor:
Fabián Eduardo Levis, Miguel Marano
Publikováno v:
Numerical Functional Analysis and Optimization. 34:16-35
Let f = (f1, , fm ), where fj belongs to the Orlicz space [0, 1], and let w = (w1, , wm ) be an m-tuple of m positive weights. If ⊂ [0, 1] is the class of nondecreasing functions, we denote by ,w(f, ) the set of best simultaneous monotone approxima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec96778faaa41f533a62c2cfbd111e08
https://doi.org/10.1080/01630563.2012.706770
https://doi.org/10.1080/01630563.2012.706770
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
Autor:
Miguel Marano
Publikováno v:
Applied Mathematics Letters. 14:741-752
Following a precise definition of shape-preserving interpolating functions to data, we construct in a new and elementary manner such a cubic spline S2 ϵ C2, letting two additional knots per interval. We give an explicit description of S2, which has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb55cc26f6ce6bacb247524819ace7b5
https://doi.org/10.1016/s0893-9659(01)80036-7
https://doi.org/10.1016/s0893-9659(01)80036-7
Autor:
A. Damas, Miguel Marano
Publikováno v:
Numerical Functional Analysis and Optimization. 22:1-11
We prove the uniqueness of best 3-convex φ-approximation to a continuous function f ∈ L φ (J 0), where J 0 is a bounded, open interval and φ : [0, + ∞) → [0, + ∞) is a convex function that generalizes the p th–power functions, p ≥ 1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f32b10e06161ef02a04508ab4652a99
https://doi.org/10.1081/nfa-100103785
https://doi.org/10.1081/nfa-100103785
Autor:
Miguel Marano
Publikováno v:
Numerical Functional Analysis and Optimization. 20:753-777
A n-convex function defined on a bounded open interval J 0 n ≥2 is the (n−l)-st indefinite integral of a nondecreasing function. This fact and the simple structure of the latter enable to obtain concrete results about a n-convex best φ approxima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::757186b23220ac8986a2922a16beba5e
https://doi.org/10.1080/01630569908816922
https://doi.org/10.1080/01630569908816922
Autor:
Miguel Marano, Hector H. Cuenya
Publikováno v:
Numerical Functional Analysis and Optimization. 19:273-283
It is shown that an approximative property with respect to Orlicz or Luxemburg norms in Orlicz spaces, useful for computing best approximants from some class of functions, is generally satisfied only for the L p -norms, 1 < p < ∞, whenever the meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a3824603760b8254c5fda821de0c94d
https://doi.org/10.1080/01630569808816828
https://doi.org/10.1080/01630569808816828
Autor:
José M. Quesada, Miguel Marano
Publikováno v:
Analysis in Theory and Applications. 13:51-57
We give a construction of the maximum and the minimum of the set of nondecreasing l ϕ n -approximants in the discrete case, where ϕ is a positive convex function. A characterization of that set is also obtained.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eec0554ee1810c24d8c944ae865c3d7c
https://doi.org/10.1007/bf02836896
https://doi.org/10.1007/bf02836896
Autor:
Miguel Marano
Publikováno v:
Journal of Mathematical Analysis and Applications. 199(2):526-544
Let (Ω, A , μ) be a finite measure space and let Φ : [0, ∞)→[0, ∞) be a Δ2-convex function, Φ≢0, Φ(0)=0. The Φ-approximation of a real A -measurable functionfis the process of minimizing ∫ΩΦ(|f−h|) dμ among the real functionshof
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab778eb9249393a37f4feda1421f0951
Autor:
Miguel Marano, Robert Huotari
Publikováno v:
Journal of Computational and Applied Mathematics. 54:151-157
Suppose K is a compact convex subset of R n. If for every x∈ R n , the net of best lp-approximants, from K, of x converges to the strict uniform approximant as p → ∞, we call K a strict Polya set. Two conditions which guarantee that K is a stri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24b28a2a8e7eebe92b286fc6aad4909d
https://doi.org/10.1016/0377-0427(94)90175-9
https://doi.org/10.1016/0377-0427(94)90175-9
Autor:
Maria P. Diago, Juan Fernández-Novales, Salvador Gutiérrez, Miguel Marañón, Javier Tardaguila
Publikováno v:
Frontiers in Plant Science, Vol 9 (2018)
Assessing water status and optimizing irrigation is of utmost importance in most winegrowing countries, as the grapevine vegetative growth, yield, and grape quality can be impaired under certain water stress situations. Conventional plant-based metho
Externí odkaz:
https://doaj.org/article/9ee493e4fd744aed989c50fd4340dbd7