Clément Interpolation and Its Role in Adaptive Finite Element Error Control
Clément Interpolation and Its Role in Adaptive Finite Element Error Control
复制标题
Clément 插值及其在自适应有限元误差控制中的作用
DOI:
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
C. Carstensen
中科院分区:
文献类型:
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作者:
C. Carstensen
Several approximation operators followed Philippe Clement’s seminal paper in 1975 and are hence known as Clement-type interpolation operators, weak-, or quasi-interpolation operators. Those operators map some Sobolev space V ⊂ W k,p(Ω) onto some finite element space V h ⊂ W k,p(Ω) and generalize nodal interpolation operators whenever W k,p(Ω) ⊄ C 0(Ω), i.e., when p ≤ n/k for a bounded Lipschitz domain Ω ⊂ ℝn. The original motivation was H 2 ⊄ C 0(Ω) for higher dimensions n ≥ 4 and hence nodal interpolation is not well defined.