Results 31 to 40 of about 1,181,159 (209)

Algorithms and literate programs for weighted low-rank approximation with missing data

, 2010
Linear models identification from data with missing values is posed as a weighted low-rank approximation problem with weights related to the missing values equal to zero.
Markovsky, Ivan, Ivan Markovsky
core   +1 more source

Riemann–Liouville Fractional Integral Form of Modified Baskakov-Type Operators: Approximation Properties and Statistical Convergence

Mathematics
In this paper, a generalized sequence of Baskakov operators connected to the Riemann–Liouville fractional integral is introduced. These sequences of operators deal with smooth approximation behavior in a wider class, i.e., a class of measurable functions
Tripuresh Mishra, Karunesh Kumar Singh, Nadeem Rao, Md. Nasiruzzaman   +3 more
doaj   +1 more source

Chebyshev Approximations by Least Squares Method

Известия Иркутского государственного университета: Серия "Математика", 2020
We consider the problem of linear approximation in the form of the minimization problem of the weighted Chebyshev norm, and that in the form of the minimization problem of the weighted Euclidean norm of the residual vector.
V.I. Zorkaltsev, E. V. Gubiy
doaj   +1 more source

Trigonometric Approximation by Modulus of Smoothness in Lp,α (X)

Al-Mustansiriyah Journal of Science, 2021
In this paper, we study the approximate properties of functions by means of trigonometric polynomials in weighted spaces. Relationships between modulus of smoothness of function derivatives and those of the jobs themselves are introduced. In the weighted
Mohammed Hamad Fayyadh, Alaa Adnan Auad
doaj   +1 more source

Approximation by weighted polynomials

Journal of Approximation Theory, 2003
The paper is devoted to the study of approximation by weighted polynomials. The author proves that if \(xQ'(x)\) is increasing on \((0,\infty)\) and \(w(x)= \exp(-Q(x))\) is the corresponding weight on \([0,\infty)\), then every continuous function that vanishes outside.
openaire   +1 more source

Rigorous approximated determinization of weighted automata [PDF]

Theoretical Computer Science, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Benjamin Aminof, Orna Kupferman, and Robby Lampert   +2 more
openaire   +2 more sources

Fixed-Parameter Approximation Schemes for Weighted Flowtime [PDF]

, 2018
Given a set of n jobs with integral release dates, processing times and weights, it is a natural and important scheduling problem to compute a schedule that minimizes the sum of the weighted flow times of the jobs.
Wiese, Andreas
core   +1 more source

Weighted Approximation by Szász–Mirakyan-Type Operators Preserving Two Exponential Functions

Mathematics
In this paper, we study the weighted approximation properties of a family of Szász–Mirakyan-type operators preserving two exponential functions on the unbounded interval [0,∞).
Gülsüm Ulusoy Ada, Ali Aral
doaj   +1 more source

Approximation and entropy numbers of embeddings in weighted Orlicz spaces [PDF]

, 1991
summary:Upper estimates are obtained for approximation and entropy numbers of the embeddings of weighted Sobolev spaces into appropriate weighted Orlicz spaces.
Sun, Jiong, Edmunds, D. E.
core   +1 more source

Weighted approximation: Korovkin and quantitative type theorems

Modern Mathematical Methods, 2023
In the present paper, we consider Korovkin and quantitative theorems, which have been treated by various authors to date, under weighted approximation.
Ali Aral
doaj