Results 41 to 50 of about 94,284 (293)

Thin plate splines for transfinite interpolation at concentric circles

open access: yesMathematical Modelling and Analysis, 2013
We propose a new method for constructing a polyspline on annuli, i.e. a C 2 surface on ℝ2 \ {0}, which is piecewise biharmonic on annuli centered at 0 and interpolates smooth data at all interface circles.
Aurelian Bejancu
doaj   +1 more source

Bivariate spline interpolation with optimal approximation order [PDF]

open access: yes, 2001
Let be a triangulation of some polygonal domain f c R2 and let S9 (A) denote the space of all bivariate polynomial splines of smoothness r and degree q with respect to A.
A. Kh. Ibrahim   +31 more
core   +1 more source

Three level implicit tension spline scheme for solution of Convection-Reaction-Diffusion equation

open access: yesAin Shams Engineering Journal, 2018
In this work, the numerical approximation of Convection-Reaction-Diffusion equation is investigated using the method based on tension spline function and finite difference approximation.
H.S. Shekarabi, J. Rashidinia
doaj   +1 more source

Some new function spaces of variable smoothness [PDF]

open access: yes, 2015
The present paper is concerned with new Besov-type space of variable smoothness. Nonlinear spline-approximation approach is used to give atomic decomposition of such space.
Tyulenev, A. I.
core   +1 more source

Two-stage spline-approximation in linear structure routing

open access: yesРоссийский технологический журнал, 2021
In the article, computer design of routes of linear structures is considered as a spline approximation problem. A fundamental feature of the corresponding design tasks is that the plan and longitudinal profile of the route consist of elements of a given ...
D. A. Karpov, V. I. Struchenkov
doaj   +1 more source

Dual Taylor Series, Spline Based Function and Integral Approximation and Applications

open access: yesMathematical and Computational Applications, 2019
In this paper, function approximation is utilized to establish functional series approximations to integrals. The starting point is the definition of a dual Taylor series, which is a natural extension of a Taylor series, and spline based series ...
Roy M. Howard
doaj   +1 more source

Multidimensional Additive Spline Approximation [PDF]

open access: yesSIAM Journal on Scientific and Statistical Computing, 1983
We describe an adaptive procedure that approximates a function of many variables by a sum of (univariate) spline functions $s_m $ of selected linear combinations $a_m \cdot x$ of the coordinates \[ \phi (x) = \sum_{1 \leqq m \leqq M} {s_m ( a_m \cdot x)}.
Friedman, Jerome H.   +2 more
openaire   +1 more source

Efficacy of Inebilizumab in N‐MOmentum Trial Participants With or Without Prior Immunosuppressants

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT This post hoc analysis examined the impact of prior immunosuppressants on the long‐term efficacy and safety of inebilizumab, a cluster of differentiation 19+ B‐cell–depleting monoclonal antibody, in participants with aquaporin‐4–seropositive neuromyelitis optica spectrum disorder from the N‐MOmentum trial (NTC02200770).
Bruce A. C. Cree   +9 more
wiley   +1 more source

Mathematical approximator based on basic spline approximation [PDF]

open access: yesE3S Web of Conferences
The article considers the problem of constructing a mathematical piecewise linear approximator based on approximation by basis splines. An algorithm has been developed designed to implement a class of special functions and create parallel ...
Turdimatov Mamirjon   +5 more
doaj   +1 more source

PENALIZED SPLINE: A GENERAL ROBUST TRAJECTORY MODEL FOR ZIYUAN-3 SATELLITE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Owing to the dynamic imaging system, the trajectory model plays a very important role in the geometric processing of high resolution satellite imagery. However, establishing a trajectory model is difficult when only discrete and noisy data are available.
H. Pan, Z. Zou
doaj   +1 more source

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