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田中 健一郎 >

このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10445/7723

タイトル: E-Sinc methods have almost the same convergence property as SE-Sinc methods even for a family of functions fitting the SE-Sinc methods Part II: Indefinite integration
著者: Tanaka, Ken'ichiro
Okayama, Tomoaki
Matsuo, Takayasu
Sugihara, Masaaki
アブストラクト: In this paper, the theoretical convergence rate of the Sinc indefinite integration combined with the double-exponential (DE) transformation is given for a class of functions for which the single-exponential (SE) transformation is suitable. Although the DE transformation is considered as an enhanced version of the SE transformation for Sinc-related methods, the function space for which the DE transformation is suitable is smaller than that for SE, and therefore, there exist some examples such that the DE transformation is not better than the SE transformation. Even in such cases, however, some numerical observations in the literature suggest that there is almost no difference in the convergence rates of SE and DE. In fact, recently, the observations have been theoretically explained for two explicit approximation formulas: the Sinc quadrature and the Sinc approximation. The conclusion is that in such cases, the DE’s rate is slightly lower, but almost the same as that of the SE. The contribution of this study is the derivation of the same conclusion for the Sinc indefinite integration. Numerical examples that support the theoretical result are also provided.
研究業績種別: 原著論文/Original Paper
資料種別: Journal Article
査読有無: あり/yes
単著共著: 共著/joint
発表雑誌名,発表学会名など: Numerische Mathematik
巻: 125
号: 3
開始ページ: 545
終了ページ: 568
年月日: 2013年
出版社: Springer Berlin Heidelberg
出現コレクション:田中 健一郎

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