Acta mathematica scientia,Series A ›› 2025, Vol. 45 ›› Issue (5): 1729-1744.

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Periodic Solutions Bifurcated from a Degenerate Double Homoclinic Loop

Bin Long*(),Ying Liu   

  1. School of Mathematics and Data Science, Shaanxi University of Science and Technology, xi'an 710021
  • Received:2024-11-05 Revised:2025-04-15 Online:2025-10-26 Published:2025-10-14

Abstract:

This paper investigates the bifurcation problem of autonomous differential equations with double homoclinic loops in high-dimensional systems under periodic perturbations. The double homoclinic loop consist of two degenerate homoclinic orbits connecting to the same hyperbolic equilibrium. Applying Lin's method to the double homoclinic loops, we derived the bifurcation function. Under certain conditions, the existence of zeros for these bifurcation functions is proven. Consequently, the perturbed system possesses periodic solutions near the unperturbed double homoclinic loop.

Key words: Lin's method, exponential dichotomy, periodic solutions, bifurcation

CLC Number: 

  • O175.1
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