Complexity in the bifurcation structure of homoclinic loops to a saddle-focus
- 1 March 1997
- journal article
- Published by IOP Publishing in Nonlinearity
- Vol. 10 (2), 409-423
- https://doi.org/10.1088/0951-7715/10/2/006
Abstract
We report on the study of bifurcations of multi-circuit homoclinic loops in two-parameter families of vector fields in the neighbourhood of a main homoclinic tangency to a saddle-focus with characteristic exponents satisfying the Shil'nikov condition . We prove that one-parameter subfamilies of vector fields transverse to the main homoclinic tangency (1) may be tangent to subfamilies with a triple-circuit homoclinic loop; (2) may have a tangency of an arbitrarily high order to subfamilies with a multi-circuit homoclinic loop. These theorems show the high structural instability of one-parameter subfamilies of vector fields in the neighbourhood of a homoclinic tangency to a Shil'nikov-type saddle-focus. Implications for nonlinear partial differential equations modelling waves in spatially extended systems are briefly discussed.Keywords
This publication has 14 references indexed in Scilit:
- On models with non-rough Poincaré homoclinic curvesPhysica D: Nonlinear Phenomena, 1993
- Bifurcation to infinitely many sinksCommunications in Mathematical Physics, 1983
- Generation of a countable set of homoclinic flows through bifurcationPhysics Letters A, 1983
- What can we learn from homoclinic orbits in chaotic dynamics?Journal of Statistical Physics, 1983
- Double Impulse Solutions in Nerve Axon EquationsSIAM Journal on Applied Mathematics, 1982
- Oscillators with chaotic behavior: An illustration of a theorem by Shil'nikovJournal of Statistical Physics, 1982
- Diffeomorphisms with infinitely many sinksTopology, 1974
- ON THREE-DIMENSIONAL DYNAMICAL SYSTEMS CLOSE TO SYSTEMS WITH A STRUCTURALLY UNSTABLE HOMOCLINIC CURVE. IIMathematics of the USSR-Sbornik, 1973
- ON THREE-DIMENSIONAL DYNAMICAL SYSTEMS CLOSE TO SYSTEMS WITH A STRUCTURALLY UNSTABLE HOMOCLINIC CURVE. IMathematics of the USSR-Sbornik, 1972
- A CONTRIBUTION TO THE PROBLEM OF THE STRUCTURE OF AN EXTENDED NEIGHBORHOOD OF A ROUGH EQUILIBRIUM STATE OF SADDLE-FOCUS TYPEMathematics of the USSR-Sbornik, 1970