Books for learning the maths used in learning Relativity

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Discussion Overview

The discussion revolves around recommendations for books and resources that cover the mathematics necessary for understanding relativity, particularly focusing on topics like tensors and Minkowski spacetime metrics. Participants explore various texts that range from introductory to more advanced levels, addressing both the mathematical foundations and their applications in general relativity (GR).

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant seeks recommendations for books or PDFs that cover the mathematics used in relativity, specifically mentioning tensors and the Minkowski spacetime metric.
  • Another participant notes that while many basic texts cover tensors and differential geometry, they may not specifically address Lorentzian manifolds, suggesting that relativity texts typically discuss the generalization to pseudo metrics.
  • A participant recommends Schutz's "A First Course in General Relativity" for a good introduction that covers tensors, while also suggesting Frankel's "Geometry of Physics" for those seeking more depth, though it may be challenging for beginners.
  • Another participant praises Foster and Nightingale's "A Short Course in General Relativity" for its natural progression in teaching GR concepts, starting from curvilinear coordinate systems.
  • Several links to resources for Special Relativity and GR are shared, including MIT notes and Lovelock's text, which discusses Lovelock's Theorem and its relation to the Einstein Field Equations.
  • One participant questions the basis of a tensor, leading to a discussion about its definition and transformation properties, highlighting the distinction between contravariant and covariant tensors.
  • Another participant emphasizes the importance of understanding tensors through literature rather than focusing solely on the numerical aspects in a particular basis.

Areas of Agreement / Disagreement

Participants generally agree on the importance of foundational texts for learning the mathematics of relativity, but there are differing opinions on which specific resources are most suitable for various levels of understanding. The discussion remains unresolved regarding the best approach to learning about tensors and their applications in relativity.

Contextual Notes

Some participants note that the texts mentioned may not cover all aspects of Lorentzian geometry or may assume prior knowledge of certain mathematical concepts, which could affect their accessibility to beginners.

Subrahmanyan
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Can anyone suggest a book from where I can learn the math used in relativity like Tensors,Minkowski spacetime metric ,etc ? A suggestion of pdfs would also be appreciated?
 
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Are you looking for a text on the mathematics or for a text on relativity. Tensors and differential geometry is covered in many basic books (including mine), but they will generally not discuss the specifics of Lorentzian manifolds but instead keep to Riemannian geometry (where the metric is positive definite). The generalisation to pseudo metrics is rather straight forward though and any relativity text should discuss it.
 
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I agree with Orodruin, get a good intro to GR that does a good job covering tensors. I recommend Schutz, A First Course in General Relativity.

If you want more mathematics and more depth, I suggest Frankel, Geometry of Physics, but it may be too much for a first pass.
 
For a GR intro, I really liked Foster and Nightingale's "A Short Course in General Relativity" because it progresses very naturally like this:
1. Curvilinear coordinate systems in flat space (e.g. polar or spherical)
2. Curvilinear coordinate systems for a curved surface in flat space (e.g. a spherical surface)
3. Specialize to remaining in that curved surface, and now you have a curved 2d space. Suddenly we are in GR land.
If you already know what the Jacobian is and how to transform between (x,y) and (r,theta) in flat 2d, then you can quickly get up to speed. If not, he introduces these things, and you'll just have to move a little more slowly.
 
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Do you guys know what the basis of a tensor is?
 
mamuneee02 said:
Do you guys know what the basis of a tensor is?

That depends on how you view it. I will not go into differential forms, but give the old answer. Its as sort of a generalized matrix of numbers that has certain transformation properties. It comes in two general types contravarient and covarient, and even mixed. Like matrices in linear algebra the actual numbers depend on the 'basis' of the vectors it is transforming. But the modern view is like a linear transformation in linear algebra, the actual numbers in a particular basis is not that important - the 'abstract' properties of the transformation is what's is mostly considered.

The only real way to understand them is to go through the literature such as what I posted.

Thanks
Bill
 

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