Results 31 to 40 of about 1,345 (163)

Absence of stationary states and non-Boltzmann distributions of fractional Brownian motion in shallow external potentials

New Journal of Physics, 2022
We study the diffusive motion of a particle in a subharmonic potential of the form U ( x ) = | x | ^c (0 < c < 2) driven by long-range correlated, stationary fractional Gaussian noise ξ _α ( t ) with 0 < α ⩽ 2.
Tobias Guggenberger, Aleksei Chechkin, Ralf Metzler   +2 more
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Integrals of Subharmonic Functions

Irish Mathematical Society Bulletin, 1989
See also Bull. Math. Soc. 19, 343-349 (1987; Zbl 0596.31003).
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Torus and Subharmonic Motions of a Forced Vibration System in 1 : 5 Weak Resonance

Advances in Mathematical Physics, 2020
The Neimark-Sacker bifurcation of a forced vibration system is considered in this paper. The series solution to the motion equation is obtained, and the Poincaré map is established.
Yong Guo
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Brushless Wound Rotor Vernier Motor Using Single-Phase Additional Winding on Stator for Variable Speed Applications

IEEE Access, 2023
This paper introduces a topology for achieving the brushless operation of a wound rotor vernier motor using a single-phase additional winding on the stator, specifically designed for variable-speed applications e.g., washing machines.
Muhammad Humza, Tanveer Yazdan, Mudassir Raza Siddiqi, Han-Wook Cho   +3 more
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Convexity and Subharmonic Functions

Irish Mathematical Society Bulletin, 1986
In diesem Tagungsbericht macht der Autor auf neueste Ergebnisse im Zusammenhang von Konvexität und subharmonischen Funktionen und über verallgemeinerte Mittelwerte aufmerksam. Ausführlich sind oder werden diese behandelt: vom Autor [J. Math. Anal. Appl. 108, 507-514 (1985; Zbl 0582.31005)], vom Autor und \textit{M. Klimek} [Bull. Lond. Math. Soc.
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On subharmonic functions [PDF]

Bulletin of the American Mathematical Society, 1943
Not ...
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L^p-subharmonic functions in R^n

Electronic Journal of Differential Equations, 2016
We prove that if u is an $L^p$-subharmonic function defined outside a compact set in $\mathbb{R}^n$, it is bounded above near infinity, in particular, if the subharmonic function u is in $L^p(\mathbb{R}^n)$, $1\leq ...
Moustafa Damlakhi
doaj  

Subharmonic functions and associated measures in ℝn

Open Mathematics
For subharmonic functions ss in Rn,n≥2,{{\mathbb{R}}}^{n},n\ge 2, there is an associated Radon measure μ\mu that is used to represent ss locally as an integral up to an additive harmonic function. We prove that the total measure μ(R2)\mu ({{\mathbb{R}}}^
Bajunaid Ibtesam
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Subharmonic resonance and fixed-range asymptotic stability of the fractional-order SD oscillator

Advances in Mechanical Engineering
The smooth and discontinuous (SD) oscillator is a typical system with strong nonlinear characteristics, and it is widely used in low-frequency vibration isolation and energy harvesting. A fractional damping model denoted by the Caputo model is introduced
Wang Cui-yan, Wang Ming-hao, Chen En-li, Wang Jun   +3 more
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Existence of Subharmonic Periodic Solutions to a Class of Second-Order Non-Autonomous Neutral Functional Differential Equations

Abstract and Applied Analysis, 2012
By introducing subdifferentiability of lower semicontinuous convex function φ(x(t),x(t−τ)) and its conjugate function, as well as critical point theory and operator equation theory, we obtain the existence of multiple subharmonic periodic solutions to ...
Xiao-Bao Shu, Yongzeng Lai, Fei Xu
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