منابع مشابه
Mesh Modification for Evolution Equations
Finite element methods for which the underlying function spaces change with time are studied. The error estimates produced are all in norms that are very naturally associated with the problems. In some cases the Galerkin solution error can be seen to be quasi-optimal. K. Miller's moving finite element method is studied in one space dimension; convergence is proved for the case of smooth solutio...
متن کامل3D anisotropic mesh adaptation by mesh modification
This paper describes an effective anisotropic mesh adaptation procedure for general 3D geometries using mesh modification operations. The procedure consists of four interacted high level components: refinement, coarsening, projecting boundary vertices and shape correction. All components are governed by an anisotropic mesh metric field that represents the desired element size and shape distribu...
متن کاملGeometrically Consistent Mesh Modification
A new paradigm of adaptivity is to execute refinement, coarsening, and smoothing of meshes on manifolds with incomplete information about their geometry and yet preserve position and curvature accuracy. We refer to this collectively as geometrically consistent mesh modification. We discuss the concept of discrete geometric consistency, show the failure of naive approaches, and propose and analy...
متن کاملConvergence of a continuous Galerkin method with mesh modification for nonlinear wave equations
We consider space-time continuous Galerkin methods with mesh modification in time for semilinear second order hyperbolic equations. We show a priori estimates in the energy norm without mesh conditions. Under reasonable assumptions on the choice of the spatial mesh in each time step we show optimal order convergence rates. Estimates of the jump in the Riesz projection in two successive time ste...
متن کاملModification of writing pattern of dental articles based on MeSH
در سالهای اخیر، تحقیقات مختلفی به منظور شناسایی سطح دانش مولفان مقالات حوزه های پزشکی و وابسته به آن در استفاده از ابزار نمایهسازی MeSH از طریق مقایسه کلیدواژههای مقالات با MeSH انجام شده است. بر پایه این مطالعات پایین بودن میزان همخوانی کلیدواژههای مقالات با MeSH ناشی از دو عامل: عدم آگاهی و عدم مراجعه نویسندگان به MeSH ، عدم وجود خط مشی روشن در ارتباط با نحوه استفاده از MeSH در سیاست هیا...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mathematics of Computation
سال: 1982
ISSN: 0025-5718
DOI: 10.1090/s0025-5718-1982-0658215-0