Results 41 to 50 of about 336 (79)

Linear dependence of bivariate Minimal Support and Locally Refined B-splines over LR-meshes [PDF]

open access: yes, 2019
The focus on locally refined spline spaces has grown rapidly in recent years due to the need in Isogeoemtric analysis (IgA) of spline spaces with local adaptivity: a property not offered by the strict regular structure of tensor product B-spline spaces ...
Dokken, Tor, Patrizi, Francesco
core   +2 more sources

Local interpolation schemes for landmark-based image registration: a comparison

open access: yes, 2014
In this paper we focus, from a mathematical point of view, on properties and performances of some local interpolation schemes for landmark-based image registration.
Allasia, Giampietro   +2 more
core   +1 more source

Shape preserving $C^2$ interpolatory subdivision schemes [PDF]

open access: yes, 1998
Stationary interpolatory subdivision schemes which preserve shape properties such as convexity or monotonicity are constructed. The schemes are rational in the data and generate limit functions that are at least $C^2$.
Damme, R.M.J. van, Kuijt, F.
core   +1 more source

Splines in Numerical Integration [PDF]

open access: yes, 2010
AMS Subj. Classification: 65D07, 65D30.We gave a short review of several results which are related to the role of splines (cardinal, centered or interpolating) in numerical integration.
Udovičić, Zlatko
core  

Isogeometric Boundary Elements in Electromagnetism: Rigorous Analysis, Fast Methods, and Examples

open access: yes, 2019
We present a new approach to three-dimensional electromagnetic scattering problems via fast isogeometric boundary element methods. Starting with an investigation of the theoretical setting around the electric field integral equation within the ...
Dölz, Jürgen   +3 more
core   +1 more source

Evaluation of tension splines [PDF]

open access: yes, 1999
Tension spline of order $k$ is a function that, for a given partition mbox ...
I. Beroš, M. Marušić
core   +1 more source

Lower bounds for the approximation with variation-diminishing splines [PDF]

open access: yes
We prove lower bounds for the approximation error of the variation-diminishing Schoenberg operator on the interval [0, 1] in terms of classical moduli of smoothness depending on the degree of the spline basis.
B. Forster   +22 more
core   +1 more source

Curve network interpolation by $C^1$ quadratic B-spline surfaces

open access: yes, 2015
In this paper we investigate the problem of interpolating a B-spline curve network, in order to create a surface satisfying such a constraint and defined by blending functions spanning the space of bivariate $C^1$ quadratic splines on criss-cross ...
Dagnino, Catterina   +2 more
core   +1 more source

A Discrete Adapted Hierarchical Basis Solver For Radial Basis Function Interpolation

open access: yes, 2012
In this paper we develop a discrete Hierarchical Basis (HB) to efficiently solve the Radial Basis Function (RBF) interpolation problem with variable polynomial order.
Castrillon-Candas, Julio Enrique   +2 more
core   +1 more source

Error analysis for quadratic spline quasi-interpolants on non-uniform criss-cross triangulations of bounded rectangular domains

open access: yes, 2006
Given a non-uniform criss-cross partition of a rectangular domain $\Omega$, we analyse the error between a function $f$ defined on $\Omega$ and two types of $C^1$-quadratic spline quasi-interpolants (QIs) obtained as linear combinations of B-splines with
Dagnino, Catterina, Sablonnière, Paul
core   +1 more source

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