A Bernstein-bézier Basis for Arbitrary Order Raviart-thomas Finite Elements
نویسندگان
چکیده
A Bernstein-Bézier basis is developed for H(div)-conforming finite elements that gives a clear separation between the curls of the Bernstein basis for the polynomial discretisation of the space H1, and the non-curls that characterize the specific H(div) finite element space (Raviart-Thomas in our case). The resulting basis has two distinct components reflecting this separation with the basis functions in each component having a natural identification with a domain point, or node, on the element. It is shown that the basis retains the favourable properties of the Bernstein basis that were used in [1] to develop efficient computational procedures for the application of the elements.
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