Lebesgue constants of multiple de la Vallée-Poussin sums over polyhedra

1984 ◽  
Vol 26 (6) ◽  
pp. 2404-2411 ◽  
Author(s):  
M. A. Skopina
2017 ◽  
Vol 819 ◽  
pp. 012018
Author(s):  
Ahmad Fadly Nurullah bin Rasedee ◽  
Abdumalik A. Rakhimov ◽  
Anvarjon A. Ahmedov ◽  
Torla Bin Hj Hassan

2021 ◽  
Vol 47 (1) ◽  
Author(s):  
Kevin Schober ◽  
Jürgen Prestin ◽  
Serhii A. Stasyuk

AbstractIn this paper, we show that certain trigonometric polynomial shearlets which are special cases of directional de la Vallée Poussin-type wavelets are able to detect step discontinuities along boundary curves of periodic characteristic functions. Motivated by recent results for discrete shearlets in two dimensions, we provide lower and upper estimates for the magnitude of the corresponding inner products. In the proof, we use localization properties of trigonometric polynomial shearlets in the time and frequency domain and, among other things, bounds for certain Fresnel integrals. Moreover, we give numerical examples which underline the theoretical results.


1975 ◽  
Vol 17 (3) ◽  
pp. 233-235 ◽  
Author(s):  
V. A. Yudin
Keyword(s):  

1932 ◽  
Vol 11 (1-4) ◽  
pp. 73-82
Author(s):  
George Rutledge

1982 ◽  
Vol 33 (6) ◽  
pp. 553-559 ◽  
Author(s):  
V. K. Dzyadyk ◽  
S. Yu. Dzyadyk ◽  
A. S. Prypik

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