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Trudy Instituta Matematiki i Mekhaniki UrO RAN, 2014, Volume 20, Number 1, Pages 109–118
(Mi timm1034)
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This article is cited in 4 scientific papers (total in 4 papers)
Generalized Jackson inequality in the space $L_2(\mathbb R^d)$ with Dunkl weight
V. I. Ivanov, Ha Thi Min Hue Tula State University
Abstract:
A generalized modulus of continuity is defined in the space $L_2(\mathbb R^d)$ with Dunkl weight by means of an arbitrary zero-sum sequence of complex numbers. A sharp generalized Jackson inequality is proved for this modulus and the best approximations by entire functions of exponential spherical type. This inequality was earlier proved by S. N. Vasil'ev in the weightless case.
Keywords:
root system, reflection group, Dunkl weight, Dunkl transform, best approximation, modulus of continuity, Jackson inequality.
Received: 10.12.2013
Citation:
V. I. Ivanov, Ha Thi Min Hue, “Generalized Jackson inequality in the space $L_2(\mathbb R^d)$ with Dunkl weight”, Trudy Inst. Mat. i Mekh. UrO RAN, 20, no. 1, 2014, 109–118; Proc. Steklov Inst. Math. (Suppl.), 288, suppl. 1 (2015), 88–98
Linking options:
https://www.mathnet.ru/eng/timm1034 https://www.mathnet.ru/eng/timm/v20/i1/p109
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