Galois Theory, Differential Equations, and Lie Groups?

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SUMMARY

The discussion centers on the connection between Galois Theory and differential equations through the concept of Differential Galois Theory. This theory extends traditional Galois Theory, which typically deals with algebraic equations, to the realm of differential equations. Key terms mentioned include Differential Galois Theory and Picard-Vessiot theory, which relates to the solutions of differential equations and their integrals. For further exploration, the Wikipedia article on Differential Galois Theory serves as a foundational resource.

PREREQUISITES
  • Understanding of Galois Theory, particularly over finite field extensions.
  • Familiarity with differential equations and their solutions.
  • Basic knowledge of Lie Groups and their mathematical properties.
  • Awareness of Picard-Vessiot theory and its applications in integrals.
NEXT STEPS
  • Study the principles of Differential Galois Theory in depth.
  • Explore the applications of Picard-Vessiot theory in solving differential equations.
  • Investigate the role of Lie Groups in the context of Differential Galois Theory.
  • Review advanced texts on the interplay between algebra and differential equations.
USEFUL FOR

Mathematicians, particularly those focused on algebra, differential equations, and advanced theoretical concepts in Galois Theory and Lie Groups.

"pi"mp
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I apologize for the informal and un-rigourous question. I have heard, in passing, that doing Galois Theory over Lie Groups instead of discrete groups is connected to solutions of differential equations instead of algebraic equations.

First of all, is this correct? If so, what is this correspondence called and where can I learn about it?
Much thanks!
 
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I think the term you are looking for is Differential Galois Theory.
Don't ask me how it works, because I only know a bit of the "normal" Galois Theory (over finite field extensions), and I don't know how it's being used here.

http://en.wikipedia.org/wiki/Differential_Galois_theory

The article also mentions Picard-Vessiot theory, which seems to deal with solutions of differential equations in terms of integrals.
 

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