Ultraconvergence of ZZ patch recovery at mesh symmetry points
نویسندگان
چکیده
The ultraconvergence property of the Zienkiewicz-Zhu gradient patch recovery technique based on local discrete least-squares fitting is established for a large class of even-order finite elements. The result is valid at all rectangular mesh symmetry points. Different smoothing strategies are discussed and numerical examples are demonstrated.
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عنوان ژورنال:
- Numerische Mathematik
دوره 95 شماره
صفحات -
تاریخ انتشار 2003