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Superconvergent recovery of gradients on subdomains from piecewise linear finite-element approximations

โœ Scribed by M. F. Wheeler; J. R. Whiteman

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
638 KB
Volume
3
Category
Article
ISSN
0749-159X

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We propose the use of an averaging scheme, which recovers gradients from piecewise linear finite element approximations on the (1 + ฮฑ)-regular triangular elements to gradients of the weak solution of a secondorder elliptic boundary value problem in the 2-dimensional space. The recovered gradients, f

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