نتایج جستجو برای: Bifurcation theory

تعداد نتایج: 794264  

Journal: :iranian journal of science and technology (sciences) 2014
h. r. z. zangeneh

by using bifurcation theory of planar ordinary differential equations all different bounded travelling wave solutions of the generalized zakharov equation are classified in different parametric regions . in each of these parametric regions the exact explicit parametric representation of all solitary , kink (anti kink) and periodic wave solutions as well as their numerical simulation and thei...

Journal: :iranian journal of numerical analysis and optimization 0
zahra monfared zohre dadi

this paper is devoted to study of a partial differential equation governing panel motion in supersonic flow. this pde can be transformed to an ode by means of a galerkin method. here by using a criterion which is closely related to the routh-hurwitz criterion, we investigate the mentioned transformed ode from hopf bifurcation point of view. in fact we obtain a region for existence of simple hop...

Journal: :Journal of Differential Equations 1979

ژورنال: پژوهش های ریاضی 2018
Sadri, Nasrin, Gazor, Majid ,

This paper aims to introduce the original ideas of normal form theory and bifurcation analysis and control of small amplitude limit cycles in a non-technical terms so that it would be comprehensible to wide ranges of Persian speaking engineers and physicists. The history of normal form goes back to more than one hundreds ago, that is to the original ideas coming from Henry Poincare. This tool p...

Journal: :international journal of advanced design and manufacturing technology 0
farzad moayyedian mehran kadkhodayan

based on two-dimensional plane stress and bifurcation functional from hill's general theory in polar coordinate the critical condition for elastic wrinkling of the flange of a circular blank ( the wave number in the flange and wrinkled area) during the deep-drawing process are obtained analyticaly to improve the previous given results. in this analytical study, the elastic limitation of the mat...

2009
NA YI ZHIWU ZHAO QINGLING ZHANG

In this paper, the global dynamic behaviors of an SEIQS epidemic system with a nonlinear incidence rate are investigated. At first, the stabilities of equilibria for the system are analyzed. Thus, the codimension-1 bifurcations including transcritical bifurcation, saddle-node bifurcation, Hopf bifurcation are discussed using bifurcation theory. In particular, codimension2 bifurcation (Bogdanov-...

Journal: :Reviews of Modern Physics 1991

Journal: :Transactions of the American Mathematical Society 1972

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