Results 221 to 230 of about 309,932 (262)
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International Journal of Bifurcation and Chaos, 2023
In this paper, we study the global dynamics for a class of continuous piecewise [Formula: see text]-equivariant cubic Hamiltonian vector fields with nilpotent bicenters at [Formula: see text]. We consider these polynomial vector fields with a challenging case where the bicenters [Formula: see text] come from the combination of two nilpotent cusps ...
Chen, Ting, Llibre, Jaume
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In this paper, we study the global dynamics for a class of continuous piecewise [Formula: see text]-equivariant cubic Hamiltonian vector fields with nilpotent bicenters at [Formula: see text]. We consider these polynomial vector fields with a challenging case where the bicenters [Formula: see text] come from the combination of two nilpotent cusps ...
Chen, Ting, Llibre, Jaume
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, 2014
In this paper, we study the number of limit cycles which bifurcate from the periodic orbits of cubic polynomial vector fields of Lotka–Volterra type having a rational first integral of degree 2, under polynomial perturbations of degree n. The analysis is
Xiuli Cen, Yulin Zhao, Haihua Liang
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In this paper, we study the number of limit cycles which bifurcate from the periodic orbits of cubic polynomial vector fields of Lotka–Volterra type having a rational first integral of degree 2, under polynomial perturbations of degree n. The analysis is
Xiuli Cen, Yulin Zhao, Haihua Liang
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Journal of Physics A: Mathematical and Theoretical, 2018
We apply Kahan’s discretisation method to three classes of 2D quadratic vector fields with quadratic, resp. cubic, resp. quartic Hamiltonians. We show that the maps obtained in this way can be geometrically understood as the composition of two ...
Peter H. van der Kamp +5 more
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We apply Kahan’s discretisation method to three classes of 2D quadratic vector fields with quadratic, resp. cubic, resp. quartic Hamiltonians. We show that the maps obtained in this way can be geometrically understood as the composition of two ...
Peter H. van der Kamp +5 more
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Eleven small limit cycles in a cubic vector field
Nonlinearity, 1995The main result of this paper is described precisely by its title. However, the title may suggest to some that the paper is elementary. On the contrary, the centents of the paper reveal a deep analysis of the general problem of the appearance of limit cycles from a center or a weak focus of a planar polynomial system.
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Molecular imaging in oncology: Current impact and future directions
Ca-A Cancer Journal for Clinicians, 2022Steven P Rowe, Martin G Pomper
exaly
Bifurcation of Limit Cycles from the Center of a Family of Cubic Polynomial Vector Fields
International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2018S. Sui, Liqin Zhao
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Management of glioblastoma: State of the art and future directions
Ca-A Cancer Journal for Clinicians, 2020Aaron Tan, David M Ashley, Giselle Lopez
exaly
Crimean–Congo haemorrhagic fever virus
Nature Reviews Microbiology, 2023David W Hawman, Heinrich Feldmann
exaly
Bat-borne virus diversity, spillover and emergence
Nature Reviews Microbiology, 2020Michael Letko +2 more
exaly