Lyapunov Theory: Find Unique Equil Pt.

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    Lyapunov Theory
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Homework Help Overview

The discussion revolves around Lyapunov Theory, specifically focusing on the characteristics of equilibrium points in a dynamical system. The original poster seeks to identify the nature of the equilibrium point when the origin is described as a globally asymptotically stable equilibrium point.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the implications of the definition of a globally asymptotically stable equilibrium point and question whether there can be other equilibrium points in the system. They discuss the behavior of trajectories approaching the equilibrium point.

Discussion Status

Some participants express agreement with the reasoning presented, while others seek confirmation of their interpretations regarding the uniqueness of the equilibrium point. The discussion appears to be productive, with hints and clarifications being offered.

Contextual Notes

The original poster mentions having multiple similar questions, indicating a broader context of assignment-related queries. There is a focus on objective answers, which may limit the depth of exploration in the discussion.

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Lyapunov Theory: Please Help!

Homework Statement


If the origin x=0 is globally asymptotically stable equilibrium point of the system then it must be the _________ equilibrium point of the system.


Homework Equations



None

The Attempt at a Solution



This is an objective/one word answer.
 
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I have around 50 such objective questions for the assignments. I am done with 40 plus, but a few of these are haunting ms and i am not sure about them! Any help is highly appreciated!
 


Hint: If the point x=0 is a "globally asymptotically stable equilibrium point", what happens as you approach x=0 from any direction, from any starting point? Can there be any other equilibrium points?
 


1. I believe that if the point x=0 is a "globally asymptotically stable equilibrium point" then if we approach x=0 from any direction then it will converge to equilibrium point. Am I right?

2. According to me, there is no other equilibrium point.

Please let me know if i am right?
 


sounds right to me! :smile:
 


So, the blank should be "only". Just wanted to confirm if it is what you want to say.
 

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