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20052021
most citedLimit cycles appearing from the perturbation of differential systems with multiple switching curves

20 citations

7 papers

astro-ph.CO2021★ 3 cited

Baryon Acoustic Oscillations from Integrated Neutral Gas Observations: an instrument to observe the 21cm hydrogen line in the redshift range 0.13 z 0.45 -- status update

Carlos A. Wuensche, Elcio Abdalla, Filipe Batoni Abdalla +48

BINGO (BAO from Integrated Neutral Gas Observations) is a unique radio telescope designed to map the intensity of neutral hydrogen distribution at cosmological distances, making th…

math.DS2019★ 20 cited

Limit cycles appearing from the perturbation of differential systems with multiple switching curves

Jihua Yang

This paper deals with the problem of limit cycle bifurcations for a piecewise near-Hamilton system with four regions separated by algebraic curves . By analyzing the obt…

math.DS2018

Bifurcation of limit cycles of the nongeneric quadratic reversible system with discontinuous perturbations

Jihua Yang

By using the Picard-Fuchs equation and the property of Chebyshev space to the discontinuous differential system, we obtain an upper bound of the number of limit cycles for the nong…

math.DS2018

Bifurcation of limit cycles from a quadratic global center with two switching lines

Jihua Yang

In this paper, we generalize the Picard-Fuchs equation method to study the bifurcation of limit cycles of perturbed differential systems with two switching lines. We obtain the det…

math.DS2018

Limit cycles appearing from perturbations of cubic piecewise smooth center with double invariant real straight lines

Jihua Yang, Liqin Zhao

This paper investigates the exact number of limit cycles given by the averaging theory of first order for the piecewise smooth integrable non-Hamiltonian system \begin{eqnarray*} (…

math.DS2018

On the number of limit cycles for generic Lotka-Volterra system and Bogdanov-Takens system under perturbations of piecewise smooth polynomials

Shiyou Sui, Jihua Yang, Liqin Zhao

In this paper, we consider the bifurcation of limit cycles for generic L-V system () and B-T system ($\dot{x}=y,~\dot{y}=-…

physics.atom-ph2005★ 17 cited

Laser spectroscopy with nanometric gas cells : distance dependence of atom-surface interaction and collisions under confinement

Ismahène Hamdi, Petko Todorov, Alexander Yarovitski +11

The high sensitivity of Laser Spectroscopy has made possible the exploration of atomic resonances in newly designed "nanometric" gas cells, whose local thickness varies from 20nm t…