Maths required to start differential geometry

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Discussion Overview

The discussion revolves around the mathematical prerequisites for studying differential geometry, particularly from the perspective of someone with a physics background. Participants explore what additional mathematical knowledge might be necessary and recommend resources suitable for physicists.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests that the need for extra mathematics depends on the level of the differential geometry course, indicating that some may require only basic calculus while others may need knowledge of topology, algebra, and manifolds.
  • Another participant questions the extent of the original poster's physics background, particularly regarding their experience with general relativity, differential forms, symplectic geometry, or tensor calculus.
  • A recommendation is made for the book "Curvature in Mathematics and Physics" by Shlomo Sternberg, though it is noted to be challenging.
  • One participant expresses the difficulty in finding a suitable book that matches the learner's level and goals in differential geometry.
  • Another participant recommends "Geometrical Methods of Mathematical Physics" by Bernard Schutz, highlighting its accessible overview of necessary mathematics.
  • There is a repeated emphasis on the need for a book that starts from the absolute basics, with one participant mentioning their lack of knowledge in topology, analysis, or manifolds.
  • Further inquiries are made about the specific interests of the original poster, such as whether they are more focused on general relativity or elementary particle gauge field theory.
  • One participant reflects on the challenge of studying general relativity without a foundation in differential geometry, citing a few notable authors and their works.

Areas of Agreement / Disagreement

Participants express a range of views on the necessary mathematical background for differential geometry, with no consensus on a definitive set of prerequisites or a single recommended resource. The discussion remains unresolved regarding the best approach for someone with a physics background.

Contextual Notes

There are limitations in the discussion regarding the specific mathematical knowledge required, as well as the varying levels of difficulty in available resources. The participants do not reach a consensus on the essential topics or the most suitable introductory materials.

dyn
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I have a Physics background and have done the relevant maths ie. calculus , linear algebra , vector calculus and differential equations. Do i need any "extra maths" before starting a course in differential geometry ? Any recommendations for a book on the subject that would suit a Physicist ?
Thanks
 
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It depends what you mean by all those words. Some courses are pitched at a level just past calculus, you would have ideal preparation for such a course. Some courses are pitched at a higher level, for which you would want to know more calculus, some topology, some algebra (beyond linear algebra), and know a little bit about manifolds. Does "physics background" mean you have done much with general relativity, differential forms, symplectic geometry, or tensor calculus? As you probably know there is some overlap between those areas and differential geometry.

A book that might be of some interest is Curvature in Mathematics and Physics by Shlomo Sternberg though it is not easy

A problem when learning differential geometry is that many books are too easy, many books are too hard, and many books are about parts of differential geometry that are not relevant to your goals. It is hard to find one that is just right sometimes.
 
Last edited:
Thanks. I have done some General Relativity but no topology or analysis or manifolds. I need a book that starts from the absolute basics.
 
For a physicist, I recommend Bernard Schutz Geometrical Methods of Mathematical Physics. He gives a quick overview of the math that you need at the beginning of the book. It's easy to follow.
 
dyn said:
Thanks. I have done some General Relativity but no topology or analysis or manifolds. I need a book that starts from the absolute basics.

Are you interested in general relativity, or for elementary particle gauge field theory, or for both.
 
dyn said:
Thanks. I have done some General Relativity but no topology or analysis or manifolds. I need a book that starts from the absolute basics.

Doing GR without differential geometry, hmm... I can only think of 3 books (Feynman, Weinberg, Dirac), since differential geometry became what we know today, i.e. after 1950.

Schutz is a good option, Takahara is a good option.
 

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