Results 21 to 30 of about 1,438,024 (273)

WKB and resurgence in the Mathieu equation [PDF]

open access: yes, 2017
In this paper, based on lectures by the authors at the May 2015 workshop {\it Resurgence, Physics and Numbers}, at the Centro di Ricerca Matematica Ennio De Giorgio of the Scuola Normale Superiore in Pisa, we explain the origin of resurgent trans-series in the Mathieu equation spectral problem, using uniform WKB and all-orders (exact) WKB.
Dunne, Gerald V., Unsal, Mithat
openaire   +2 more sources

On the solutions of the Mathieu’s equation [PDF]

open access: yesVietnam Journal of Mechanics, 2008
As shown in [1] solutions of the Mathieu’s equation were classified on three fundamental kinds depending mainly on its parameters. These solutions were constructed in the form of infinite series. This paper presents a new approach in which approximated analytical solutions of the Mathieu’s equation are constructed in the finite form.
Dao Huy Bich   +2 more
openaire   +2 more sources

A Semi-Analytical Solution for the Thickness-Vibration of Centrally Partially-Electroded Circular AT-Cut Quartz Resonators

open access: yesSensors, 2017
Vibration frequencies and modes for the thickness-shear vibrations of infinite partially-electroded circular AT-cut quartz plates are obtained by solving the two-dimensional (2D) scalar differential equation derived by Tiersten and Smythe.
Bin Wang   +3 more
doaj   +1 more source

Transverse oscillation of particles in the vicinity of resonances for a cyclotron

open access: yesPhysical Review Accelerators and Beams, 2019
Transverse oscillation is an important issue in beam dynamics of cyclotrons and can be described by the Mathieu equation. We review the standard form of the Mathieu equation, d^{2}u/dθ^{2}+(δ+ϵ·cos2θ)u=0, and propose a modification of the method of ...
Kai Zhou   +4 more
doaj   +1 more source

Stability Analysis of Fractional-Order Mathieu Equation with Forced Excitation

open access: yesFractal and Fractional, 2022
The advantage of fractional-order derivative has attracted extensive attention in the field of dynamics. In this paper, we investigated the stability of the fractional-order Mathieu equation under forced excitation, which is based on a model of the ...
Ruihong Mu   +3 more
doaj   +1 more source

Stability approach for periodic delay Mathieu equation by the He- multiple-scales method

open access: yesAlexandria Engineering Journal, 2018
In the present work, the version of homotopy perturbation included time-scales is applied to the governing equation of time-periodic delay Mathieu equation. Periodical structure for the amplitude of the zero-order perturbation is constructed.
Yusry O. El-Dib
doaj   +1 more source

Bautin bifurgation of a modified generalized Van der Pol-Mathieu equation [PDF]

open access: yes, 2016
summary:The modified generalized Van der Pol-Mathieu equation is generalization of the equation that is investigated by authors Momeni et al. (2007), Veerman and Verhulst (2009) and Kadeřábek (2012).
Kadeřábek, Zdeněk
core   +1 more source

Sometimes Hot, Sometimes Not: The Relations Between Selected Situational Vocational Interests and Situation Perception

open access: yesEuropean Journal of Personality, EarlyView., 2020
Abstract Vocational interests are traditionally conceived as stable preferences for different activities. However, recent theorizing suggests their intraindividual variability. This preregistered experience sampling study examined intraindividual variation in selected vocational interests states and related situation and person factors (N = 237 ...
Lena Roemer   +3 more
wiley   +1 more source

Application of the sextic oscillator potential together with Mathieu and spheroidal functions for triaxial and X(5) type nuclei

open access: yesEPJ Web of Conferences, 2014
The Bohr-Mottelson Hamiltonian is amended with a potential which depends on both β and γ deformation variables and which allows us to separate the β variable from the other variables.
Raduta A. A., Buganu P.
doaj   +1 more source

Observational constraints and preheating in cuscuton inflation

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We study cuscuton inflation for the models where the potential of the cuscuton takes quadratic and exponential forms. We find that for the quadratic potential, a scalar spectral index $$n_s$$ n s is not affected by cuscuton at the leading order in the ...
Phongpichit Channuie   +2 more
doaj   +1 more source

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