Construction of local $C^1$ quartic spline elements for optimal-order approximation

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Construction of local C1 quartic spline elements for optimal-order approximation

This paper is concerned with a study of approximation order and construction of locally supported elements for the space S 1 4 (() of C 1 pp (piecewise polynomial) functions on an arbitrary triangulation of a connected polygonal domain in R 2. It is well-known that even when is a three-directional mesh (1) , the order of approximation of S 1 4 (((1)) is only 4, not 5. The objective of this pape...

متن کامل

Construction of Local C Quartic Spline Elements for Optimal-order Approximation

This paper is concerned with a study of approximation order and construction of locally supported elements for the space S1 4 (∆) of C 1 pp (piecewise polynomial) functions on an arbitrary triangulation ∆ of a connected polygonal domain Ω in R2. It is well known that even when ∆ is a threedirectional mesh ∆(1), the order of approximation of S1 4(∆ (1)) is only 4, not 5. The objective of this pa...

متن کامل

A family of C1 finite elements with optimal approximation properties for various Galerkin methods for 2nd and 4th order problems

— Families of C piecewise polynomial spaces of degree r ^ 3 on triangles and quadrilatéral in two dimensions are constructed, and approximation properties of the families are studied. Examples of the use of the families in Galerkin methodsfor 2nd and 4th order elliptic boundary value problems on arbitrarily shaped domains are given. The approximation properties on the boundary are such that the...

متن کامل

Quartic spline collocation for second-order boundary value problems

Collocation methods based on quartic splines are presented for second-order two-point boundary value problems. In order to obtain a uniquely solvable linear system for the degrees of freedom of the quartic spline collocation approximation, in addition to the boundary conditions specified by the problem, extra boundary or near-boundary conditions are introduced. Non-optimal (fourth-order) and op...

متن کامل

H∞ Optimal Approximation for Causal Spline Interpolation

In this paper, we give a causal solution to the problem of spline interpolation using H∞ optimal approximation. Generally speaking, spline interpolation requires filtering the whole sampled data, the past and the future, to reconstruct the inter-sample values. This leads to non-causality of the filter, and this becomes a critical issue for real-time applications. Our objective here is to derive...

متن کامل

ذخیره 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: 1996

ISSN: 0025-5718

DOI: 10.1090/s0025-5718-96-00689-8