Results 31 to 40 of about 42,681 (238)

The characterization of best nonlinear Tchebycheff approximations [PDF]

Transactions of the American Mathematical Society, 1960
1.1. Let two real functions f and F be given such that f=f(x) is a continuous function for x [0, 1] and F== F(al, a2, * * *, a n, x) is a continuous function of n parameters and x [0, 1]. For simplicity of notation the point (a', a2, * * , an) in Euclidean n-space, En, is denoted by a.
openaire   +2 more sources

A Characterization of Best Simultaneous Approximations

Journal of Approximation Theory, 1993
Let \(X\) be a compact Hausdorff space and \(Y\) a normed linear space and let \(C(x,y)\) denote the set of all continuous functions from \(X\) to \(Y\), equipped with a norm. The author takes up the problem of approximating a finite number of functions in \(C(x,y)\) simultaneously by a function in a subspace of \(C(x,y)\).
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Extension of bounded linear functionals and best approximation in spaces with asymmetric norm

Journal of Numerical Analysis and Approximation Theory, 2004
The present paper is concerned with the characterization of the elements of best approximation in a subspace \(Y\) of a space with asymmetric norm, in terms of some linear functionals vanishing on \(Y\).
Ş. Cobzaş, C. Mustăţa
doaj   +2 more sources

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan, Mariah Wright‐Nadkarni, Mohamed S. Abdelbaki, Girish Dhall   +3 more
wiley   +1 more source

Ewing Sarcoma in Infants and Children Under 2 Years of Age: A French Retrospective Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ewing sarcoma, the second most common primary bone cancer in children, requires intensive treatment that may lead to significant long‐term sequelae, particularly in infants. We retrospectively analyzed data from 1621 French patients treated between 1988 and 2015 within the EW88/93/97 or EE99 trials, focusing on 17 infants diagnosed before 24 ...
Elodie Verdier, Nathalie Cozic, Marie‐Dominique Tabone, Gaelle Pierron, Perrine Marec‐Berard, Sarah Winter, Gabriel Revon‐Rivière, Cyril Lervat, Dominique Plantaz, Marie‐Pierre Castex, Gregory Guimard, Estelle Thebaud, Stephanie Proust, Laure Saumet, Natacha Entz‐Werle, Sophie Taque, Cécile Vérité, Marta Jimenez, Nathalie Gaspar   +18 more
wiley   +1 more source

Generalized Order and Best Approximation of Entire Function in 𝐿𝑝-Norm

International Journal of Mathematics and Mathematical Sciences, 2010
The aim of this paper is the characterization of the generalized growth of entire functions of several complex variables by means of the best polynomial approximation and interpolation on a compact 𝐾 with respect to the set Ω𝑟={𝑧∈𝐂𝑛;exp𝑉𝐾(𝑧)≤𝑟}, where 𝑉𝐾=
Mohammed Harfaoui
doaj   +1 more source

A characterization of best simultaneous approximations

Journal of Approximation Theory, 1989
On considere l'espace des fonctions d'un espace de Hansdorff compact dans un espace lineaire norme et on s'interesse a l'approximation simultanee de telles fonctions, dans le sens de Tchebychev, par des fonctions appartenant a un sous espace de dimension ...
openaire   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye, Chimezie Okwuonu, Evelyn Idam, Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Zinnah Aloziem, Blossom Amamchukwu, Patience Elimia, Mkpoikanabasi Obot‐Obot, Henry Mbakwe, Praises Maduagwuna, Olatunji Akinrodoye, Chiamaka Anyanwu, Benjamin Anyanwu, Adedamola Akinsiku, Oluwatoyin A. Akinsiku, Muzamil O. Hassan, Fatiu A. Arogundade, Olalekan E. Ojo, Homayemem Weli, Jesupelumi Adenihun, Aderemi Adelaja, Ebun Bamgboye, Olalekan Olatise, Ade E. Faponle, Ayoola Odeyemi, Michael Muoka, Stephen Asaolu, Qudrat Busari, Blessing Dawudu, Michael Naiyeju, Rasheed A. Balogun   +33 more
wiley   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Analysis of Noise with Curve Fitting Method of a PV cell

EAI Endorsed Transactions on Energy Web, 2017
Solar photovoltaic technology is a major contender in the race for renewable, sustainable and green energy. This paper introduces the characteristics of different PV cell equivalent circuit and its output behaviour.
Md Tofael Ahmed, Teresa Gonçalves, Mouhaydine Tlemçani   +2 more
doaj   +1 more source