Joint spectral radius and ternary hermite subdivision

被引:7
|
作者
Charina, M. [1 ]
Conti, C. [2 ]
Mejstrik, T. [1 ]
Merrien, J. -L. [3 ]
机构
[1] Univ Wien, Fak Math, Oskar Morgenstern Pl 1, A-1090 Vienna, Austria
[2] Univ Firenze, DIEF, Viale Morgagni 40-44, I-50134 Florence, Italy
[3] Univ Rennes, INSA Rennes, CNRS, IARMAR UMR 6625, F-35000 Rennes, France
基金
奥地利科学基金会;
关键词
Hermite subdivision; Hermite interpolation; Joint spectral radius; Taylor operator; SCHEMES; REGULARITY; MATRICES;
D O I
10.1007/s10444-021-09854-X
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper we construct a family of ternary interpolatory Hermite subdivision schemes of order 1 with small support and HC2-smoothness. Indeed, leaving the binary domain, it is possible to derive interpolatory Hermite subdivision schemes with higher regularity than the existing binary examples. The family of schemes we construct is a two-parameter family whose HC2-smoothness is guaranteed whenever the parameters are chosen from a certain polygonal region. The construction of this new family is inspired by the geometric insight into the ternary interpolatory scalar three-point subdivision scheme by Hassan and Dodgson. The smoothness of our new family of Hermite schemes is proven by means of joint spectral radius techniques.
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页数:23
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