Stability Analysis of Nonlinear Bessel-type ODE

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SUMMARY

The discussion focuses on the stability analysis of the second-order nonlinear ordinary differential equation (ODE) given by xy'' + 2y' = y^2 - k^2. The transformation of this equation into the standard form u^2 z_{uu} - u z_u + u^2 z = z^2 is highlighted as a crucial step for analysis. Participants express interest in asymptotic behavior and proof of existence, with a reference to a relevant paper that provides insights into these topics. The goal is to demonstrate Lyapunov stability around the solution z(u=0) = 0.

PREREQUISITES
  • Understanding of second-order nonlinear ordinary differential equations (ODEs)
  • Familiarity with Lyapunov stability theory
  • Knowledge of asymptotic analysis techniques
  • Experience with mathematical transformations of differential equations
NEXT STEPS
  • Study Lyapunov's direct method for stability analysis
  • Research asymptotic behavior of nonlinear differential equations
  • Explore the implications of the transformation u^2 z_{uu} - u z_u + u^2 z = z^2
  • Read the referenced paper on stability analysis from ScienceDirect
USEFUL FOR

Mathematicians, researchers in applied mathematics, and students studying nonlinear dynamics and stability analysis of differential equations will benefit from this discussion.

player100
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Is there an approach to the following 2nd order nonlinear ODE?
<br /> xy&#039;&#039; + 2 y&#039; = y^2 - k^2<br />
I am interested in learning how to analyze for asymptotic behavior, proof of existence, etc.
 
I can transform this equation into a more standard form: $$u^2 z_{uu} - u z_u + u^2 z = z^2.$$ I found a paper that kind of answers my question: http://www.sciencedirect.com/science/article/pii/0898122196000569

It would be nice to show that the solution is Lyapunov stable about z(u=0) = 0... Anyone know how to do that?
 

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