On a superconvergent finite element scheme for elliptic systems. II. Boundary conditions of Newton's or Neumann's type
On a superconvergent finite element scheme for elliptic systems. II. Boundary conditions of Newton's or Neumann's type
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DOI:
10.21136/am.1987.104251
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发表时间:
1987
期刊:
影响因子:
--
通讯作者:
I. Hlavácek;M. Křížek
中科院分区:
文献类型:
--
作者:
I. Hlavácek;M. Křížek
Summary. A simple supe r conve r gent scheme fo r the de r ivatives of fi n ite eleme n t solutio n is p r ese n ted, whe n li n ea r t r ia n gula r eleme n ts are employed to solve seco n d order elliptic systems with bou n da r y co n ditio n s of Newto n 's o r Neuma nn 's type. Fo r bou n ded pla n e domai n s with smooth bou n da r y the local 0(h 3//2 ) -supe r co n ve r ge n ce of the de r ivatives i n the L 2 - n o r m is proved. The paper is a direct co n ti n uatio n of [2], where a n a n alogous problem with Di r ichlet's bou n dary co n ditio n s is treated .