Error estimates for Q1 isoparametric elements satisfying a weak angle condition

We prove optimal order error estimates in the H1 norm for the Q1 isoparametric interpolation on convex quadrilateral elements under rather weak hypotheses, improving previously known results. Choose one diagonal and divide the element into two triangles. We show that, if the chosen diagonal is the l...

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Detalles Bibliográficos
Autores principales: Acosta, G., Durán, R.G.
Formato: JOUR
Materias:
Anisotropic elements
Isoparametric finite elements
Lagrange interpolation
Maximum angle condition
Quadrilateral elements
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00361429_v38_n4_p1073_Acosta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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