Results 21 to 30 of about 330,431 (258)
Algorithmic Randomness and Fourier Analysis [PDF]
Theory of Computing Systems, 2018 Suppose $1 < p < \infty$. Carleson's Theorem states that the Fourier series of any function in $L^p[-π, π]$ converges almost everywhere. We show that the Schnorr random points are precisely those that satisfy this theorem for every $f \in L^p[-π, π]$ given natural computability conditions on $f$ and $p$.
Johanna N. Y. Franklin +2 more
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Fast DBF for conformal arrays based on 2D Fourier decomposition
The Journal of Engineering, 2019 Digital array radars with conformal arrays are attractive for platforms with limited installation space such as aircraft and unmanned aerial vehicles.
Yuan Yao, Guangxin Wu
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Beilstein Journal of Nanotechnology, 2020 Atomic force microscopy (AFM) is an important tool for measuring a variety of nanoscale surface properties, such as topography, viscoelasticity, electrical potential and conductivity.
Berkin Uluutku, Santiago D. Solares
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New approach for the determination of the characteristics of signals containing fluctuating harmonics [PDF]
International Journal of Metrology and Quality Engineering, 2011 This paper describes a new approach for the analysis of signals containing fluctuating harmonics. It is based on the Fourier transform, using windowing to reduce the error arising from analysing the signal over a non integer number of signal periods and ...
Poletaeff A., Espel P.
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On the Validity of the Local Fourier Analysis [PDF]
Journal of Computational Mathematics, 2019 Local Fourier analysis (LFA) is a useful tool in predicting the convergence factors of geometric multigrid methods (GMG). As is well known, on rectangular domains with periodic boundary conditions this analysis gives the exact convergence factors of such methods.
Rodrigo, Carmen +2 more
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Entropy, 2019 What is the value of just a few bits to a guesser? We study this problem in a setup where Alice wishes to guess an independent and identically distributed (i.i.d.) random vector and can procure a fixed number of k information bits from Bob, who has ...
Nir Weinberger, Ofer Shayevitz
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Krawtchouk transforms and convolutions
Bulletin of Mathematical Sciences, 2020 We present an operator calculus based on Krawtchouk polynomials, including Krawtchouk transforms and corresponding convolution structure which provides an inherently discrete alternative to Fourier analysis.
Philip Feinsilver, René Schott
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Propagation of shock wave of nitrogen gas in Titan stratosphere
Journal of Taibah University for Science, 2021 Nitrogen gas is considered one of the significant standard gases in stratosphere of Titan, Saturn's largest moon, which represents almost 98.4% of Titan atmosphere chemical composites.
H. G. Abdelwahed, Abeer A. Mahmoud
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International Journal of Applied Mechanics and Engineering, 2015 A vibratory pile hammer (VPH) is a mechanical device used to drive steel piles as well as tube piles into soil to provide foundation support for buildings or other structures.
D. Miedzińska, R. Gieleta, J. Osiński
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Analysis of Dynamic Response Characteristics for 5 MW Jacket-type Fixed Offshore Wind Turbine
한국해양공학회지, 2021 This study aims to evaluate the dynamic responses of the jacket-type offshore wind turbine using FAST software (Fatigue, Aerodynamics, Structures, and Turbulence).
Jaewook Kim, Sanghwan Heo, WeonCheol Koo
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