On the norm of the hyperinterpolation operator on the d-dimensional cube
被引:13
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作者:
Wang, Heping
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机构:
Capital Normal Univ, Sch Math Sci, BCMIIS, Beijing 100048, Peoples R ChinaCapital Normal Univ, Sch Math Sci, BCMIIS, Beijing 100048, Peoples R China
Wang, Heping
[1
]
Wang, Kai
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机构:
Capital Normal Univ, Sch Math Sci, Beijing 100048, Peoples R ChinaCapital Normal Univ, Sch Math Sci, BCMIIS, Beijing 100048, Peoples R China
Wang, Kai
[2
]
Wang, Xiaoli
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Capital Normal Univ, Sch Math Sci, Beijing 100048, Peoples R ChinaCapital Normal Univ, Sch Math Sci, BCMIIS, Beijing 100048, Peoples R China
Wang, Xiaoli
[2
]
机构:
[1] Capital Normal Univ, Sch Math Sci, BCMIIS, Beijing 100048, Peoples R China
[2] Capital Normal Univ, Sch Math Sci, Beijing 100048, Peoples R China
We obtain the asymptotic order of the operator norm of the hyperinterpolation operator on the cube I-d = [-1, 1](d), d >= 2 with respect to the measure d mu(x) = Pi(d)(i=1) dx(i)/pi root 1-x(i)(2). This gives an affirmative answer to a conjecture raised by Caliari et al. (2008). (C) 2014 Elsevier Ltd. All rights reserved.
机构:
Univ Roma La Sapienza, Dipartimento Metodi & Modelli Matemat, I-00161 Rome, ItalyUniv Roma La Sapienza, Dipartimento Metodi & Modelli Matemat, I-00161 Rome, Italy