Results 81 to 90 of about 1,293,710 (359)

On the rate of convergence of Baskakov-Kantorovich-Bézier operators for bounded variation functions

Journal of Numerical Analysis and Approximation Theory, 2002
In the present paper we introduce Baskakov-Kantorovich-Bézier operators and study their rate of convergence for functions of bounded variation.
Ulrich Abel, Vijay Gupta, Mircea Ivan
doaj   +2 more sources

Numerical integration by the matrix method and evaluation of the approximation order of difference boundary value problems for non-homogeneous linear ordinary differential equations of the fourth order with variable coefficients

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2020
The use of the second degree Taylor polynomial in approximation of derivatives by finite difference method leads to the second order approximation of the traditional grid method for numerical integration of boundary value problems for non-homogeneous ...
Vladimir Nikolaevich Maklakov, Mariya Aleksandrovna Ilicheva   +1 more
doaj   +1 more source

Approximation of complex algebraic numbers by algebraic numbers of bounded degree

, 2007
We investigate how well complex algebraic numbers can be approximated by algebraic numbers of degree at most n. We also investigate how well complex algebraic numbers can be approximated by algebraic integers of degree at most n+1.
Bugeaud, Yann, Evertse, Jan-Hendrik
core   +1 more source

Further Results about Field Theory on the World Sheet and String Formation

, 2005
The present article is the continuation of the earlier work, which used the world sheet representation and the mean field approximation to sum planar graphs in massless phi^3 field theory.
't Hooft, Aharony, Andreev, Bardakci, Bardakci, Bardakci, Bardakci, Bardakci, Brower, D'Adda, Fairlie, Gross, Gudmundsson, Korkut Bardakci, Maldacena, Moshe, Polchinski, Polchinski, Polchinski, Sakita, Thorn, Thorn, Thorn   +22 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

High order approximation of degree nine and order eighteen

Journal of Inequalities and Applications, 2019
In this paper, a method to approximate curves by polynomials of degree nine is presented. The resulting approximation has order eighteen. The method is applied to approximate a circular arc, and the error function is studied and characterized, and its ...
Abedallah Rababah
doaj   +1 more source

On the degree of approximation of functions by Fejér means

, 1945
1. Continuous functions. I t has been proved by S. Bernstein that if f(x) is periodic and of the class Lip a, 0 < a < l , then the (C, 1) means an(x) =
A. Zygmund
semanticscholar   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Degree of Monotone Approximation in , p Lα Spaces

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
The aim of this paper is to study the best approximation of unbounded functions in the weighted spaces , 1, 0 , p p L α α ≥>.
I. Z. Shamkhi, S. K. Jassim
doaj