Results 31 to 40 of about 626,115 (180)

A tension approach to controlling the shape of cubic spline surfaces on FVS triangulations [PDF]

open access: yes, 2010
We propose a parametric tensioned version of the FVS macro-element to control the shape of the composite surface and remove artificial oscillations, bumps and other undesired behaviour.
Manni, Carla, Davydov, Oleg
core   +4 more sources

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

On Approximation with Spline Generated Framelets [PDF]

open access: yesConstructive Approximation, 2004
The authors characterize the approximation spaces associated with the best \(n\)-term approximation in \(L_p(\mathbb{R})\) \((1 ...
Gribonval, Rémi, Nielsen, Morten
openaire   +2 more sources

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

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

THB-Spline Approximations for Turbine Blade Design with Local B-Spline Approximations

open access: yes, 2022
We consider two-stage scattered data fitting with truncated hierarchical B-splines (THB-splines) for the adaptive reconstruction of industrial models. The first stage of the scheme is devoted to the computation of local least squares variational spline approximations, exploiting a simple fairness functional to handle data distributions with a locally ...
C. Bracco   +5 more
openaire   +2 more sources

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

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

Quasi-interpolation in Spline Spaces: Local Stability and Approximation Properties

open access: yesTrends in Computational and Applied Mathematics, 2023
In this work we analyze the approximation error in Sobolev norms for quasi-interpolation operators in spline spaces. We establish in a general way the hypotheses on a quasi-interpolant to achieve the optimal order of approximation.
M. E. Castillo, E. M. Garau
doaj   +1 more source

Spline approximation with preservation of moments

open access: yesJournal of Numerical Analysis and Approximation Theory, 1990
Not available.
Petru Blaga
doaj   +2 more sources

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