Results 31 to 40 of about 33,489 (278)

A note on the integrability of exceptional potentials via polynomial bi-homogeneous potentials

open access: yesBulletin of Computational Applied Mathematics, 2021
This paper is concerned with the polynomial integrability of the two-dimensional Hamiltonian systems associated to complex homogeneous polynomial potentials of degree k of type $V_{k,l}=\alpha (q_2-i q_1)^l (q_2+iq_1)^{k-l}$ with $\alpha$ in C and l=0 ...
Primitivo B. Acosta-Humánez   +2 more
doaj  

Long-time behavior of stochastic reaction–diffusion equation with multiplicative noise

open access: yesAdvances in Difference Equations, 2020
In this paper, we study the dynamical behavior of the solution for the stochastic reaction–diffusion equation with the nonlinearity satisfying the polynomial growth of arbitrary order p ≥ 2 $p\geq2$ and any space dimension N.
Jing Wang, Qiaozhen Ma, Tingting Liu
doaj   +1 more source

Classical planar algebraic curves realizable by quadratic polynomial differential systems [PDF]

open access: yes, 2017
In this paper we show planar quadratic polynomial differentialsystems exhibiting as solutions some famous planar invariant algebraic curves. Also we put particular attention to the Darboux integrability of these differential systems.The author is ...
García, I. A. (Isaac A.), Llibre, Jaume
core   +4 more sources

From the Birkhoff-Gustavson normalization to the Bertrand-Darboux integrability condition

open access: yes, 2000
The Bertrand-Darboux integrability condition for a certain class of perturbed harmonic oscillators is studied from the viewpoint of the Birkhoff-Gustavson(BG)-normalization: By solving an inverse problem of the BG-normalization on computer algebra, it is
Arnold V I   +17 more
core   +2 more sources

The non-polynomial conservation laws and integrability analysis of generalized Riemann type hydrodynamical equations

open access: yes, 2010
Based on the gradient-holonomic algorithm we analyze the integrability property of the generalized hydrodynamical Riemann type equation $%D_{t}^{N}u=0$ for arbitrary $N\in \mathbb{Z}_{+}.$ The infinite hierarchies of polynomial and non-polynomial ...
Popowicz, Ziemowit   +1 more
core   +1 more source

Integrability via geometry: dispersionless differential equations in three and four dimensions [PDF]

open access: yes, 2019
We prove that the existence of a dispersionless Lax pair with spectral parameter for a nondegenerate hyperbolic second order partial differential equation (PDE) is equivalent to the canonical conformal structure defined by the symbol being Einstein-Weyl ...
Calderbank, David M. J.   +1 more
core   +2 more sources

Adiabatic gauge potential and integrability breaking with free fermions

open access: yesSciPost Physics
We revisit the problem of integrability breaking in free fermionic quantum spin chains. We investigate the so-called adiabatic gauge potential (AGP), which was recently proposed as an accurate probe of quantum chaos.
Balázs Pozsgay, Rustem Sharipov, Anastasiia Tiutiakina, István Vona
doaj   +1 more source

Geometry and integrability of quadratic systems with invariant hyperbolas

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
Let QSH be the family of non-degenerate planar quadratic differential systems possessing an invariant hyperbola. We study this class from the viewpoint of integrability.
Regilene Oliveira   +2 more
doaj   +1 more source

Integrability of planar polynomial differential systems through linear differential equations [PDF]

open access: yes, 2005
In this work, we consider rational ordinary differential equations dy/dx = Q(x,y)/P(x,y), with Q(x,y) and P(x,y) coprime polynomials with real coefficients.
Giacomini, Héctor   +2 more
core   +6 more sources

On some orthogonal polynomial integrals [PDF]

open access: yesMathematics of Computation, 1980
The modified moments of the weight functions w ( x ) = x ρ ( 1 − x ) a ln ⁡ ( 1 / x ) w(x) = {x^\rho }{(1 - x ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy