2001
DOI: 10.1137/1.9780898719253
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Finite Element Solution of Boundary Value Problems

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Cited by 132 publications
(208 citation statements)
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“…The convergence rate here appears to be O(N −4 ) rather than O(N −2 ): this is not surprising, as it is well known that the finite element method can exhibit nodal superconvergence, when the numerical solution at node points is much more accurate than at intermediate points [20]. It can be seen in Figure 3(a) that for two out of three cases, the error with the adaptive grid is mostly smaller than the error with a uniform grid with the same number of points.…”
Section: Accuracy and Efficiency In Practicementioning
confidence: 51%
“…The convergence rate here appears to be O(N −4 ) rather than O(N −2 ): this is not surprising, as it is well known that the finite element method can exhibit nodal superconvergence, when the numerical solution at node points is much more accurate than at intermediate points [20]. It can be seen in Figure 3(a) that for two out of three cases, the error with the adaptive grid is mostly smaller than the error with a uniform grid with the same number of points.…”
Section: Accuracy and Efficiency In Practicementioning
confidence: 51%
“…The Euler-Lagrange equation requires four boundary conditions in order to have a unique solution. For details, see [15]. In particular, for the steady state power-law Euler-Bernoulli beam, we have…”
Section: The Ritz Variational Principlementioning
confidence: 99%
“…where ϕj and ψi are the trial and test functions from the trial and test spaces respectively [3,13]. S is typically sparse due to the local support of the chosen basis functions.…”
Section: Introductionmentioning
confidence: 99%