Results 11 to 20 of about 117,839 (311)

Numerical analysis of homoclinic orbits emanating from a Takens-Bogdanov point [PDF]

open access: yes, 1994
Beyn W-J. Numerical analysis of homoclinic orbits emanating from a Takens-Bogdanov point. IMA Journal of Numerical Analysis. 1994;14(3):381-410.It is known that branches of homoclinic orbits emanate from a singular point of a dynamical system with a ...
Beyn, Wolf-Jürgen
core   +2 more sources

Stability of singular jump-linear systems with a large state space : a two-time-scale approach [PDF]

open access: yes, 2012
This paper considers singular systems that involve both continuous dynamics and discrete events with the coefficients being modulated by a continuous-time Markov chain. The underlying systems have two distinct characteristics.
Yuan, Chenggui   +4 more
core   +1 more source

Global bifurcation analysis of a rational Holling system [PDF]

open access: yesКомпьютерные исследования и моделирование, 2017
In this paper, we consider a quartic family of planar vector fields corresponding to a rational Holling system which models the dynamics of the populations of predators and their prey in a given ecological or biomedical system and which is a variation on
Valery Aleksandrovich Gaiko
doaj   +1 more source

Location of singular points in orthorhombic media

open access: yesГеофизический журнал, 2022
The dependence of the location of singular points of orthorhombic (ORT) media on the stiffness coefficients , and phase velocity  at the singularity point is studied under the assumption that  are larger than  and .
Yu.V. Roganov   +2 more
doaj   +1 more source

Point singularity array with metasurfaces

open access: yesNature Communications, 2023
AbstractPhase singularities are loci of darkness surrounded by monochromatic light in a scalar field, with applications in optical trapping, super-resolution imaging, and structured light-matter interactions. Although 1D singular structures, like optical vortices, are common due to their robust topological properties, uncommon 0D (point) and 2D (sheet)
Soon Wei Daniel Lim   +6 more
openaire   +5 more sources

Model of motion of a material point near two tangent paraboloids [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
The motion of a material point near a singularity of the type of two tangent surfaces is considered. The surfaces are located symmetrically with respect to a common tangent plane and have a common axis of rotation.
Burian, Sergey N.
doaj   +1 more source

Properties of singular points in a special case of orthorhombic media

open access: yesГеофизический журнал, 2023
The position of singular lines for orthorhombic (ORT) media with fixed diagonal elements of the elasticity matrix cij, i=1…6 is studied under the condition that c11, c22, c33>c66>c44>c55.
Yu.V. Roganov, A. Stovas, V.Yu. Roganov
doaj   +1 more source

Design of quadrature rules for Müntz and Müntz-logarithmic polynomials using monomial transformation [PDF]

open access: yes, 2009
A method for constructing the exact quadratures for Müntz and Müntz-logarithmic polynomials is presented. The algorithm does permit to anticipate the precision (machine precision) of the numerical integration of Müntz-logarithmic polynomials in terms of ...
Lombardi, Guido
core   +1 more source

On a singular multi-point third-order boundary value problem on the half-line [PDF]

open access: yes, 2020
summary:We establish not only sufficient but also necessary conditions for existence of solutions to a singular multi-point third-order boundary value problem posed on the half-line.
Benbaziz, Zakia, Djebali, Smail
core   +1 more source

Singular points and limit cycles of the generalized Kukles polynomial differential system

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022
Background. Searching of numbers of Poincare limit cycles of polynomial dynamic systems belongs to second part of the 16th Gilbert problem, which is not solved in general.
I.N. Mal'kov, V.V. Machulis
doaj   +1 more source

Home - About - Disclaimer - Privacy