H.-T. Huang

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a r t i c l e i n f o a b s t r a c t We study superconvergence of bi-k-Lagrange elements for parameter-dependent problems where k 2. We show that the superconvergence rate of the bi-k-Lagrange elements is two orders higher than that of the kth-order Lagrange elements. This is a significant improvement of the previous results [C.-Superconvergence of FEMs(More)
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