Results 31 to 40 of about 361,038 (279)

On the polynomial vector fields on [PDF]

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2011
Let X be a polynomial vector field of degree n on M, M = ℝm. The dynamics and the algebraic-geometric properties of the vector fields X have been studied intensively, mainly for the case when M = ℝm, and especially when n = 2. Several papers have been dedicated to the study of the homogeneous polynomial vector field of degree n on $\mathbb{S}^2 ...
Jaume Llibre, Yulin Zhao
openaire   +1 more source

The $16$th Hilbert problem on algebraic limit cycles [PDF]

open access: yes, 2014
For real planar polynomial differential systems there appeared a simple version of the $16$th Hilbert problem on algebraic limit cycles: {\it Is there an upper bound on the number of algebraic limit cycles of all polynomial vector fields of degree $m ...
Xiang, Zhang
core   +1 more source

Bifurcation at Infinity in Polynomial Vector Fields

open access: yesJournal of Differential Equations, 1993
We study here the appearance of limit cycles from the equator in polynomial vector fields with no singular points at infinity: this bifurcation is a generalized Hopf bifurcation from the point at infinity. We start with the general theory and then specialize to the particular case of cubic polynomial systems for which we study the simultaneous ...
Blows, T.R., Rousseau, C.
openaire   +2 more sources

Bounding the number of remarkable values via Jouanolou's theorem [PDF]

open access: yes, 2015
International audienceIn this article we bound the number of remarkable values of a polynomial vector field. The proof is short and based on Jouanolou's theorem about rational first integrals of planar polynomial derivations.
Chèze, Guillaume
core   +4 more sources

New Nonlinear Active Element Dedicated to Modeling Chaotic Dynamics with Complex Polynomial Vector Fields

open access: yesEntropy, 2019
This paper describes evolution of new active element that is able to significantly simplify the design process of lumped chaotic oscillator, especially if the concept of analog computer or state space description is adopted.
Jiri Petrzela, Roman Sotner
doaj   +1 more source

Topological enumeration of complex polynomial vector fields [PDF]

open access: yesErgodic Theory and Dynamical Systems, 2014
AbstractThe enumeration of combinatorial classes of the complex polynomial vector fields in$ \mathbb{C} $presented by K. Dias [Enumerating combinatorial classes of the complex polynomial vector fields in$ \mathbb{C} $.Ergod. Th. & Dynam. Sys. 33(2013), 416–440] is extended here to a closed form enumeration of combinatorial classes for degree$d ...
openaire   +3 more sources

Higher-rank tensor non-Abelian field theory: Higher-moment or subdimensional polynomial global symmetry, algebraic variety, Noether's theorem, and gauging

open access: yesPhysical Review Research, 2021
With a view toward a fracton theory in condensed matter, we introduce a higher-moment polynomial degree-p global symmetry, acting on complex scalar/vector/tensor fields (e.g., ordinary or vector global symmetry for p=0 and p=1 respectively).
Juven Wang, Kai Xu, Shing-Tung Yau
doaj   +1 more source

Chiral and Continuum Extrapolation of Partially-Quenched Hadron Masses [PDF]

open access: yes, 2005
Using the finite-range regularisation (FRR) of chiral effective field theory, the chiral extrapolation formula for the vector meson mass is derived for the case of partially-quenched QCD.
Allton, C. R.   +4 more
core   +2 more sources

Generic polynomial vector fields are not integrable

open access: yesIndagationes Mathematicae, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Maciejewski, Andrzej J   +2 more
openaire   +1 more source

Normalizations with exponentially small remainders for nonautonomous analytic periodic vector fields

open access: yes, 2011
In this paper we deal with analytic nonautonomous vector fields with a periodic time-dependancy, that we study near an equilibrium point. In a first part, we assume that the linearized system is split in two invariant subspaces E0 and E1.
A. Kelley   +11 more
core   +1 more source

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