The classical theory of fields by Landau

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Discussion Overview

The discussion revolves around the challenges of understanding tensor calculus as presented in "The Classical Theory of Fields" by Landau and Lifgarbagez. Participants seek recommendations for supplementary texts that could aid in comprehending the mathematical concepts used in the book, particularly in the context of special relativity and general relativity.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Homework-related

Main Points Raised

  • One participant expresses difficulty in following the mathematical explanations in Landau's book, particularly in tensor calculus, and seeks additional resources.
  • Another participant suggests that a solid understanding of tensor analysis and Riemannian geometry is beneficial, although it may be considered excessive for some readers.
  • Recommendations include "Tensor Analysis on Manifolds" by Bishop and Goldberg for manifold theory and tensor mathematics, and "General Relativity" by Wald for a balance between mathematical and physical approaches.
  • It is noted that many physicists learn to work with tensors in a coordinate system without delving into the underlying mathematics, which can lead to confusion.
  • A participant recommends Nakahara's "Differential Geometry, Topology and Physics" as a suitable text that balances mathematical rigor with physical relevance.
  • Another participant mentions the Schaum's Outline on Tensors as a helpful resource for understanding the topic.

Areas of Agreement / Disagreement

Participants generally agree on the need for supplementary texts to aid in understanding tensor calculus, but there are multiple competing views on which resources are most effective. The discussion remains unresolved regarding the best approach to learning the material.

Contextual Notes

Some participants highlight the potential disconnect between the mathematical treatment of tensors and their application in physics, suggesting that understanding the mathematical foundations may require additional study.

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"the classical theory of fields" by Landau

I hope this is in the right forum, if not sorry- please move it.

I'm reading "the classical theory of fields" by Landau and Lifgarbagez at the moment (if you've not heard of it it covers special relativity/ relativistic em/ general relativity). Though it introduces all the maths used, I'm finding the explanations a bit too brief and a bit hard to follow when it's applied later in the book. So I was wondering if there are any suitable books that just go through the maths I could read in combination with Landau?

The material I'm struggling with is mostly tensor calculus, as an example of level please see pages 20-23 on the google preview: http://books.google.co.uk/books?hl=...=X&oi=book_result&resnum=1&ct=result#PPA21,M1

Any suggestions welcome,
thanks.
 
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to really get into that stuff you need some tensor analysis and riemannian geometry, but that can be a bit overkill. If you are interestest in math though, then this is two great topics to study, but it is not easy.

The reason these two things is a bit overkill, is that it seems that in the book you are reading, they use tensors as physicist do it (some mathematicians call it the old way), that is working with tensors in a coordinate system.

Maybe it would be good to read Tensor analysis on manifolds by Bishop and Goldberg, many people in this forum say they like it, and it is very cheap, it will learn you manifold theory and some tensor math. Then you could look in General relativity by wald, he is using a kind of an in between what bishop does and what physicist often do. You could also look in gravitation by Misner, i recall he have some chapters on how tensors work.

A lot of physicist never learn how mathematicians work with tensors and they may not even need to know, they just learn how to do calculations, and therefor thy learn how to work with them in coordinates. I think that without the math behind tensors will seem very confusing until you used it hundreds of time.

But if you don't like math, you should try to look in misner, and maybe in t'hooft free short lecture note

http://www.phys.uu.nl/~thooft/lectures/genrel.pdf
 
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Thanks
 


One book you want to have is Nakahara's "differential geometry, topology and physics". For me it's the perfect balance between mathematical rigor and physical relevance.
 


wauw never seen that book, just looked in the contents pages, it looks so interesting. Especially because i have had many of the courses in math, but even though I am a physicist I never seen the complete connection.
 


This is a case where the Schaum's Outline on Tensors would be helpful.
 

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