Undergrad Solving Differential Equations in General Relativity

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SUMMARY

This discussion addresses the challenges of solving differential equations in the context of general relativity, specifically the equation $$\partial_kv^i(x)+\Gamma^i_{jk}(x)v^j(x)=\partial_kA^i(x)$$. The connection field ##\Gamma^i_{jk}(x)## and vector field ##A^i(x)## are critical components in this equation. It is concluded that while a global vector field solution may not exist, solutions can be found along specific curves. The discussion emphasizes that general techniques for solving differential equations are better suited for dedicated mathematical resources rather than forum discussions.

PREREQUISITES
  • Understanding of differential equations and their solutions
  • Familiarity with general relativity concepts
  • Knowledge of connection fields in differential geometry
  • Basic proficiency in mathematical notation and manipulation
NEXT STEPS
  • Study advanced differential equations techniques in a mathematical textbook
  • Research connection fields and their applications in differential geometry
  • Explore specific case studies in general relativity involving differential equations
  • Learn about vector fields and their role in manifold theory
USEFUL FOR

Mathematicians, physicists, and students of general relativity seeking to deepen their understanding of differential equations in a geometric context.

Jianbing_Shao
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TL;DR
differentail equations, parallel transport equations
In genaral relativity, how to solve differential equations is seldom be discussed. I want to know how to sole the differential equations like this:
$$\partial_kv^i(x)+\Gamma^i_{jk}(x)v^j(x)=\partial_kA^i(x)$$
Here ##\Gamma^i_{jk}(x)## is connection field on a manifod and ##A^i(x)## is a vector field on the manifold. then how to get ##v^i(x)##, Perhapa we can not find a global vector field which can satisfy the differential equations, But we can still find a solution on a partilular curve. then how to find it?
 
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Jianbing_Shao said:
In genaral relativity, how to solve differential equations is seldom be discussed.

That's because it's a general mathematical subject, not specific to general relativity. So it's discussed under the general math subject of solving differential equations.

Jianbing_Shao said:
I want to know how to sole the differential equations like this

This question is much, much too general for a forum discussion. You need to study a math textbook on solving differential equations. If there is a particular case that arises in a particular problem in general relativity and you're having trouble solving that particular case, you can open a new thread asking about that particular case (and showing your attempts at solving it and where you're getting stuck). But this thread is closed since giving classes in general math techniques is outside the scope of PF.
 

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