کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9509577 | 1341404 | 2005 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Near minimally normed spline quasi-interpolants on uniform partitions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Near minimally normed spline quasi-interpolants on uniform partitions Near minimally normed spline quasi-interpolants on uniform partitions](/preview/png/9509577.png)
چکیده انگلیسی
Spline quasi-interpolants (QIs) are local approximating operators for functions or discrete data. We consider the construction of discrete and integral spline QIs on uniform partitions of the real line having small infinity norms. We call them near minimally normed QIs: they are exact on polynomial spaces and minimize a simple upper bound of their infinity norms. We give precise results for cubic and quintic QIs. Also the QI error is considered, as well as the advantage that these QIs present when approximating functions with isolated discontinuities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 181, Issue 1, 1 September 2005, Pages 211-233
Journal: Journal of Computational and Applied Mathematics - Volume 181, Issue 1, 1 September 2005, Pages 211-233
نویسندگان
D. Barrera, M.J. Ibáñez, P. Sablonnière, D. Sbibih,