JOHANNES KEPLER UNIVERSITY LINZ Institute of Computational Mathematics Space-time Isogeometric Analysis of Parabolic Evolution Equations

JOHANNES KEPLER UNIVERSITY LINZ Institute of Computational Mathematics Space-time Isogeometric Analysis of Parabolic Evolution Equations
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约翰开普勒大学林茨计算数学研究所抛物演化方程的时空等几何分析

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发表时间:
2015
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通讯作者:
M. Neumüller
M. Neumüller
中科院分区:
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文献类型:
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作者:
U. Langer;S. Moore;M. Neumüller

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提出并分析了一种新的稳定时空等几何分析方法,用于求解固定和移动空间计算域中抛物型演化方程的数值解。离散双线性形式在IgA空间上相对于离散能量范数是椭圆的。这一性质与相应的有界性、一致性和IgA空间的近似结果一起产生了关于离散范数的先验离散化误差估计。通过低阶和高阶IgA空间的数值实验验证了理论结果。
We present and analyze a new stable space-time Isogeometric Analysis (IgA) method for the numerical solution of parabolic evolution equations in fixed and moving spatial computational domains. The discrete bilinear form is elliptic on the IgA space with respect to a discrete energy norm. This property together with a corresponding boundedness property, consistency and approximation results for the IgA spaces yields an a priori discretization error estimate with respect to the discrete norm. The theoretical results are confirmed by several numerical experiments with lowand high-order IgA spaces.
DOI: --
发表时间: 2014
期刊: --
影响因子: --
作者:
U. Langer;I. Toulopoulos
通讯作者: U. Langer;I. Toulopoulos
DOI: 10.1137/130918149
发表时间: 2014-01-01
影响因子: 2.9
作者:
Olshanskii, Maxim A.;Reusken, Arnold;Xu, Xianmin
通讯作者: Xu, Xianmin