Results 21 to 30 of about 253,152 (270)

On the structure of transitively differential algebras [PDF]

open access: yes, 1999
We study finite-dimensional Lie algebras of polynomial vector fields in $n$ variables that contain the vector fields ${\partial}/{\partial x_i} \; (i=1,\ldots, n)$ and $x_1{\partial}/{\partial x_1}+ \dots + x_n{\partial}/{\partial x_n}$.
Post, G.F.
core   +10 more sources

Explicit Geometric Integration of Polynomial Vector Fields [PDF]

open access: yesBIT Numerical Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mclachlan, Robert Iain.   +1 more
openaire   +2 more sources

Isochronicity and commutation of polynomial vector fields [PDF]

open access: yesSiberian Mathematical Journal, 1999
21 pages, LaTeX, 5 PostScript ...
Volokitin, E. P., Ivanov, V. V.
openaire   +3 more sources

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

On Polynomial Hamiltonian Planar Vector Fields

open access: yesJournal of Differential Equations, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cima, A., Gasull, A., Manosas, F.
openaire   +2 more sources

Cofactors and equilibria for polynomial vector fields [PDF]

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2021
We present a relationship between the existence of equilibrium points of differential systems and the cofactors of the invariant algebraic curves and the exponential factors of the system.
Ferragut, Antoni, Llibre, Jaume
openaire   +6 more sources

Irreducible Modules for the Lie Algebra of Divergence Zero Vector Fields on a Torus [PDF]

open access: yes, 2015
This paper investigates the irreducibility of certain representations for the Lie algebra of divergence zero vector fields on a torus. In "Irreducible Representations of the Lie-Algebra of the Diffeomorphisms of a d-Dimensional Torus," S.
Talboom, John
core   +1 more source

The global dynamics of a class of nonlinear vector fields in $\mathbb{R}^3$

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
In this paper, we study the geometric properties of a class of nonlinear polynomial vector fields in $\mathbb{R}^3$. By virtue of their induced vector fields, their global topological structures are discussed and we get that there are at least 82 types
Jinhui Zhang   +2 more
doaj   +1 more source

Centers of weight-homogeneous polynomial vector fields on the plane [PDF]

open access: yes, 2016
Agraïments: The third author is partially supported by FCT/Portugal through UID/MAT/04459/2013.We characterize all centers of a planar weight-homogeneous polynomial vector fields. Moreover we classify all centers of a planar weight-homogeneous polynomial
Giné, Jaume   +2 more
core   +4 more sources

Complete polynomial vector fields in simplexes with application to evolutionary dynamics

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
We describe the complete polynomial vector fields and their fixed points in a finite-dimensional simplex and we apply the results to differential equations of genetical evolution models.
N. M. Ben Yousif
doaj   +1 more source

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