Results 31 to 40 of about 10,711,710 (246)
Dynamic Modelling and Optimal Control of a Rotor of Active Magnetic Bearings [PDF]
International Journal of Industrial Electronics, Control and Optimization, 2019 Active magnetic bearings (AMBs) are relatively new members in bearings family. Against other bearings which support loads by forces produced by fluid film pressure or physical contact, AMBs support loads by magnetic fields without any contact with the ...
Rohollah Dosthosseini +2 more
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Fisher Hartwig determinants, conformal field theory and universality in generalised XX models [PDF]
, 2016 We discuss certain quadratic models of spinless fermions on a 1D lattice, and their corresponding spin chains. These were studied by Keating and Mezzadri in the context of their relation to the Haar measures of the classical compact groups.
Hutchinson, J., Jones, N. G.
core +3 more sources
The Haar functions almost diagonalize multiplication by 𝑥 [PDF]
Proceedings of the American Mathematical Society, 1979 It is shown that if A is multiplication by x on L 2 ( 0 , 1 ) {L^2}(0,1) , then the matrix for A given by the Haar functions has the form diagonal plus Hilbert-Schmidt.
openaire +2 more sources
MathematicsIn this study, we introduce an algorithm that utilizes the Haar wavelet collocation method to solve the time-dependent Emden–Fowler equation. This proposed method effectively addresses both linear and nonlinear partial differential equations.
Mohammed N. Alshehri +4 more
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Integration with respect to the Haar measure on unitary, orthogonal and symplectic group
, 2004 We revisit the work of the first named author and using simpler algebraic arguments we calculate integrals of polynomial functions with respect to the Haar measure on the unitary group U(d).
Collins, Benoit, Sniady, Piotr
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Uniformly continuous functions on non-Hausdorff groupoids [PDF]
Surveys in Mathematics and its Applications, 2010 The purpose of this paper is to study the notion of uniform continuity introduced in [M. Buneci, Haar systems and homomorphism on groupoids, Operator algebras and mathematical physics, 35-49, Theta, Bucharest, 2003].
Mădălina Roxana Buneci
doaj
Haar wavelets, fluctuations and structure functions: convenient choices for geophysics [PDF]
Nonlinear Processes in Geophysics, 2012 Geophysical processes are typically variable over huge ranges of space-time scales. This has lead to the development of many techniques for decomposing series and fields into fluctuations Δ<i>v</i> at well-defined scales ...
S. Lovejoy, D. Schertzer
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Solution of nonlinear Volterra-Hammerstein integral equations via rationalized Haar functions.
, 2001 Rationalized Haar functions are developed to approximate the solutions of the nonlinear Volterra-Hammerstein integral equations. Properties of Rationalized Haar functions are first presented, and the operational matrix of integration together with the ...
M. Razzaghi, Y. Ordokhani
semanticscholar +1 more source
A powerful numerical technique for treating twelfth-order boundary value problems
Open Physics, 2020 In this article, a fast algorithm is developed for the numerical solution of twelfth-order boundary value problems (BVPs). The Haar technique is applied to both linear and nonlinear BVPs.
Amin Rohul +6 more
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Results in Physics, 2021 In this paper, numerical solution of third order integro-differential equation with boundary conditions is given utilizing Haar collocation technique. Both nonlinear and linear integro-differential equations are solved using this method.
M.M. Alqarni +6 more
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