Determinacy of degenerate equilibria with linear part x'=y, y'= 0 using MACSYMA
Applied Mathematics and ComputationPublished 1 January 1987
Richard H. Rand, William L. Keith
Citations6
SJR quartileQ1
SJR score0.89
SNIP1.40
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
Abstract
A MACSYMA program is presented which implements Takens's method for proving determinacy of a flow in the neighborhood of an equilibrium point by successive blowup transformations. The program is applied to nonlinear systems with linear part x'= y, y'= 0, and an examination of the pattern of the results reveals an infinite sequence of determinacy theorems. The results are applied to the behavior of van der Pol's equation at infinity.
Keywords
MathematicsPhysics and Astronomy
Applied mathematical sciencesNonlinear Oscillations, Dynamical Systems, and Bifurcations of Vector Fields
16,015 Citations1983John Guckenheimer, Philip Holmes
Normal Form and Center Manifold Calculations on MACSYMA
18 Citations1985Richard H. Rand, William L. Keith
The use of the symbolic manipulation system MACSYMA is described to facilitate normal form and center manifold computations, which arise in nonlinear dynamics problems, which represent a relatively new approach towards obtaining approximate solutions to systems of ordinary differential equations.
International Journal of Non-Linear MechanicsDynamics of a system exhibiting the global bifurcation of a limit cycle at infinity
16 Citations1985William L. Keith, Richard H. Rand
