Results 21 to 30 of about 7,315 (200)
A Haar Wavelet Decision Feedback Channel Estimation Method in OFDM Systems
Applied Sciences, 2018 Channel estimation is a key technology in improving the performance of the orthogonal frequency division multiplexing (OFDM) system. The pilot-based channel estimation method decreases the spectral efficiency and data transmission rate. Some conventional
Ruiguang Tang, Xiao Zhou, Chengyou Wang
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Applied Mathematics in Science and Engineering, 2023 The solution of a nonlinear hyperbolic Schrödinger equation (NHSE) is proposed in this paper using the Haar wavelet collocation technique (HWCM). The central difference technique is applied to handle the temporal derivative in the NHSE and the finite ...
Weidong Lei +4 more
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Fractal and Fractional, 2023 This paper aims to solve general fractional Lane-Emden-Fowler differential equations using the Haar wavelet collocation method. This method transforms the fractional differential equation into a nonlinear system of equations, which is further solved for ...
Kholoud Saad Albalawi +3 more
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The Haar System in the Preduals of Hyperfinite Factors [PDF]
Canadian Mathematical Bulletin, 2011 AbstractWe shall present examples of Schauder bases in the preduals to the hyperfinite factors of types II1, II∞, IIIλ, 0 ≤ 1. In the semifinite (respectively, purely infinite) setting, these systems form Schauder bases in any associated separable symmetric space of measurable operators (respectively, in any non-commutative Lp-space).
Potapov, Denis, Sukochev, Fyodor
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Wavelet Methods Used to Solve a System of Linear Equations [PDF]
مجلة التربية والعلم, 2006 In this paper, we study the comparison among many methods to solve a system of linear equations based on the principle of wavelet methods as a Daubechies wavelet, Haar wavelet, Meyer wavelet, Symlet wavelet, Mexican Hat wavelet, Morlet wavelet.
Riyad Mubarak Abdullah +1 more
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A remarkable rearrangement of the Haar system in $L_p$ [PDF]
Proceedings of the American Mathematical Society, 1997 Summary: We introduce a non-standard but, to our opinion natural, order on the initial segments of the Haar system and investigate the isomorphic classification of the linear span, in \(L_{p}\), of block bases, with respect to this order.
Müller, Paul F. X., Schechtman, Gideon
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Zeitschrift für Analysis und ihre Anwendungen, 2018 It is shown that a locally compact groupoid with open range map does not always admit a Haar system. It then is shown how to construct a Haar system if the stability groupoid and the quotient by the stability groupoid both admit one.
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Simulation of a non‐linear, time‐variant circuit using the Haar wavelet transform
IET Science, Measurement & Technology, 2022 Wavelet theory has disentangled numerous complexities, including those pertinent to transient and steady‐state responses of systems, when Laplace and Fourier transforms face insoluble obstacles. Reactive linear components (e.g.
Georgios G. Roumeliotis +2 more
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A Wavelet Collocation Method for some Fractional Models
Ratio Mathematica, 2022 This article presents an effective numerical approach based on the operational matrix of fractional order integration of Haar wavelets for dealing with the fractional models of the mixing and the Newton law of cooling problems.
R Aruldoss, G. Jasmine
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A FEW REMARKS ON LOCALLY COMPACT TOPOLOGIES AND HAAR SYSTEMS [PDF]
Fiabilitate şi Durabilitate, 2018 We start from the question raised by Williams (Proc. Am. Math. Soc. 2016): Must a second countable, locally compact, transitive groupoid G have open range map? If the answer is positive, the topology of G is in fact locally transitive (in the sense of [
Mădălina Roxana BUNECI
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