Results 121 to 130 of about 7,438 (162)

Longitudinal association between chronic diseases and fall risk among middle-aged and older adults in China: the mediating role of activity limitations. [PDF]

J Glob Health
Huang D, Fu Y, Yang W, Xu B, Yang Z.
europepmc   +1 more source

Analysis of special index of stunting treatment through confidence interval of longitudinal semiparametric spline model parameters

Communications in Mathematical Biology and Neuroscience
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Cubic Splines as a Special Case of Restricted Least Squares

Journal of the American Statistical Association, 1977
Abstract The standard cubic spline regression method is shown to be a special case of the restricted least-squares estimator. The equivalence of the two procedures under a common set of restrictions is proved. The greater flexibility of the restricted least-squares estimator in terms of the number of restrictions and tests of hypotheses that can be ...
A. Buse, L. Lim
exaly   +4 more sources

A smooth approximation for the solution of special non-linear third-order boundary-value problems based on non-polynomial splines

International Journal of Computer Mathematics, 2006
A second-order method based on quartic non-polynomial spline consisting of a polynomial part of degree two and a trigonometric part is developed to find continuous approximation of a two point boundary-value problem involving a third-order differential equation. It is shown that the angular frequency k of the trigonometric part can be used to raise the
Ikram A Tirmizi
exaly   +2 more sources

Positive-definite splines of special form

Sbornik: Mathematics, 2002
Even positive-definite splines with support in \([ - 1,1]\) that are equal to a real algebraic polynomial on \([0,1]\) are investigated. Examples of such splines are presented. Under consideration are \(e\)-splines, which have several extremal properties, and the positive definite \(A\)-splines, which have the maximum possible smoothness on \(R\).
Zastavnyj, V. P., Trigub, R. M.
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The Beta2-spline: A Special Case of the Beta-spline Curve and Surface Representation

IEEE Computer Graphics and Applications, 1985
Simpler equations and computationally more efficient algorithms make the Beta2-spline technique easier to understand and useful to the designer.
Brian A. Barsky, Tony DeRose
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Special Version of the Spline Method for Integral Equations of the Third Kind-

Differential Equations, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Superconvergent local quasi-interpolants based on special multivariate quadratic spline space over a refined quadrangulation

Applied Mathematics and Computation, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Driss Sbibih, A. Serghini, Ahmed Tijini
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Convergence analysis of nonic-spline solutions for special nonlinear sixth-order boundary value problems

Communications in Nonlinear Science and Numerical Simulation, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jalilian, R., Rashidinia, J.
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A numerical method based on polynomial sextic spline functions for the solution of special fifth-order boundary-value problems

Applied Mathematics and Computation, 2006
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Siraj-ul-Islam, Muhammad Azam Khan
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