Results 11 to 20 of about 1,307,940 (306)

Degree of adaptive approximation [PDF]

open access: yesMathematics of Computation, 1990
We obtain various estimates for the error in adaptive approximation and also establish a relationship between adaptive approximation and free-knot spline approximation.
DeVore, Ronald A, XIANG, Ming Yu
openaire   +1 more source

Extension of Dasgupta’s Technique for Higher Degree Approximation

open access: yesUniversitas Scientiarum, 2021
In the present paper, rational wedge functions for degree two approximation have been computed over a pentagonal discretization of the domain, by using an analytic approach which is an extension of Dasgupta’s approach for linear approximation.
P. L. Powar   +2 more
doaj   +1 more source

The Relation Between the Degree of Monotone Approximation and the Degree of Unconstrained Approximation

open access: yesMustansiriyah Journal of Pure and Applied Sciences, 2023
Many researchers related to the degree of unconstrained approximation to  constrained approximation,  and proved the inequality: For a continuous  function  on a closed interval we have                                                where  is a positive constant.
null W. A. Ajel, null E. S. Bhaya
openaire   +1 more source

Heterogeneous pair approximation for voter models on networks [PDF]

open access: yes, 2009
For models whose evolution takes place on a network it is often necessary to augment the mean-field approach by considering explicitly the degree dependence of average quantities (heterogeneous mean-field).
Baronchelli A. Pastor-Satorras R.   +7 more
core   +1 more source

The degree of approximation by Chebyshevian splines [PDF]

open access: yesTransactions of the American Mathematical Society, 1973
This paper studies the connections between the smoothness of a function and its degree of approximation by Chebyshevian splines. This is accomplished by proving companion direct and inverse theorems which give a characterization of smoothness in terms of degree of approximation. A determination of the saturation properties is included.
DeVore, R., Richards, F.
openaire   +2 more sources

The Rate of Convergence for Linear Shape-Preserving Algorithms

open access: yesConcrete Operators, 2015
We prove some results which give explicit methods for determining an upper bound for the rate of approximation by means of operators preserving a cone. Thenwe obtain some quantitative results on the rate of convergence for some sequences of linear shape ...
Boytsov Dmitry, Sidorov Sergei
doaj   +1 more source

Polynomial approximation on disjoint segments and amplification of approximation [PDF]

open access: yesJournal of Approximation Theory, 2023
We construct explicit easily implementable polynomial approximations of sufficiently high accuracy for locally constant functions on the union of disjoint segments.
Y. Malykhin, Konstantin Ryutin
semanticscholar   +1 more source

Degree of Approximation of Functions f ∈ Hω Class by the (Np E1) Means in the Hölder Metric

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2014
A new estimate for the degree of approximation of a function class by means of its Fourier series has been determined. Here, we extend the results of Singh and Mahajan (2008) which in turn generalize the result of Lal and Yadav (2001).
V. Mishra, K. Khatri
semanticscholar   +1 more source

The degree of copositive approximation by polynomials [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
Jackson type theorems are established for the approximation of a function f f that changes sign finitely many times in [ − 1 , 1 ] [ - 1,1] by polynomials p n {p_n} which are copositive with it f
openaire   +1 more source

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