Results 21 to 30 of about 57 (57)

ANOTHER TYPE OF GENERALIZED BALL CURVES AND SURFACES ∗

open access: yes, 2008
In 2000, Wu presented two new types of generalized Ball curves, one of which is called an NB1 curve located between the Wang–Ball curve and the Said–Ball curve.
Yu Dan, Chen Xinmeng
core  

An Adaptive Hierarchical Approximation Method on the Sphere Using Axisymmetric Locally Supported Basis Functions

open access: yes, 1996
The paper discusses the approximation of scattered data on the sphere which is one of the major tasks in geomathematics. Starting from the discretization of singular integrals on the sphere the authors devise a simple approximation method that employs ...
Willi Freeden   +5 more
core  

The Apolar Bilinear Form in Geometric Modeling

open access: yes, 1998
Some recent methods of Computer Aided Geometric Design are related to the apolar bilinear form, an inner product on the space of homogeneous multivariate polynomials of a fixed degree, already known in 19th century invariant theory.
Gert Vegter
core  

Monotonicity Preservation on Triangles

open access: yes, 1997
: It is well known that Bernstein polynomials on triangles preserve monotonicity. In this paper we define and study three kinds of monotonicity preservation of systems of bivariate functions on a triangle.
Michael S. Floater   +2 more
core  

A NEW SOURCE OF STRUCTURED SINGULAR VALUE DECOMPOSITION PROBLEMS

open access: yes, 2008
. The computation of the Singular Value Decomposition (SVD) of structured matrices has become an important line of research in numerical linear algebra.
Ana Marco
core  

A Measure of Shape Dissimilarity for 3D Curves

open access: yes, 2008
We present a quantitative approach to the measurement of shape dissimilarity between two 3D (three-dimensional) curves. Any 3D continuous curve can be digitalized and represented as a 3D discrete curve.
Wendy Aguilar, Ernesto Bribiesca
core  

Regularity of non-stationary subdivision: a matrix approach. [PDF]

open access: yesNumer Math (Heidelb), 2017
Charina M   +3 more
europepmc   +1 more source

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