Intro to differential geometry with worked examples

In summary, the person is looking for an introductory book on differential geometry with plenty of worked examples, covering topics such as differential forms, pull-backs, manifolds, tensors, metrics, Lie derivatives, and groups and killing vectors. They also prefer a book with problems and solutions as they are self-studying. One recommended book is Differential Geometry and Lie Groups for Physicists by Marian Fecko, which emphasizes developing the general theory through exercises and concrete examples. Another option is the Schaum's Outline of Differential Geometry, which provides practice problems. Tensors are a part of differential geometry and are commonly used in General Relativity. They can also be found in other areas of math and physics, such as mechanics and stress analysis.
  • #1
dyn
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Hi. I am looking for the most basic intro to differential geometry with plenty of worked examples. I want it to cover the following - differential forms , pull-backs , manifolds , tensors , metrics , Lie derivatives and groups and killing vectors. Problems with solutions would also be good as I am self-studying. I already have the book " Geometrical methods of mathematical physics" by Schutz. Thanks.
 
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  • #2
Maybe Fecko:

George Jones said:
Another book worth looking at is Differential Geometry and Lie Groups for Physicists by Marian Fecko,

https://www.amazon.com/dp/0521845076/?tag=pfamazon01-20.

This book is not as rigorous as the books by Lee and Tu, but it more rigorous and comprehensive than the book by Schutz. Fecko treats linear connections and associated curvature, and connections and curvature for bundles. Consequently, Fecko can be used for a more in-depth treatment of the math underlying both GR and gauge field theories than traditionally is presented in physics courses.

Fecko has an unusual format. From its Preface,
A specific feature of this book is its strong emphasis on developing the general theory through a large number of simple exercises (more than a thousand of them), in which the reader analyzes "in a hands-on fashion" various details of a "theory" as well as plenty of concrete examples (the proof of the pudding is in the eating).

The book is reviewed at the Canadian Association of Physicists website,

http://www.cap.ca/BRMS/Reviews/Rev857_554.pdf.

From the review
There are no problems at the end of each chapter, but that's because by the time you reached the end of the chapter, you feel like you've done your homework already, proving or solving every little numbered exercise, of which there can be between one and half a dozen per page. Fortunately, each chapter ends with a summary and a list of relevant equations, with references back to the text. ...

A somewhat idiosyncratic flavour of this text is reflected in the numbering: there are no numbered equations, it's the exercises that are numbered, and referred to later.

Personal observations based on my limited experience with my copy of the book:

1) often very clear, but sometimes a bit unclear;
2) some examples of mathematical imprecision/looseness, but these examples are not more densely distributed than in, say, Nakahara;
3) the simple examples are often effective.
 
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  • #3
If you think Fecko is too difficult, perhaps Nakahara's (2nd edition) could serve as an alternative. The examples are from physics.
 
  • #5
That Dover book is not what he's looking for.

...I should expand on that. Going by his list of topics, what he needs to look for are books with "differentical forms" in the title. Most will also cover differential forms on manifolds. Like this book by do Carmo:

https://www.amazon.com/dp/3540576185/?tag=pfamazon01-20
 
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  • #6
dyn said:
Hi. I am looking for the most basic intro to differential geometry with plenty of worked examples. I want it to cover the following - differential forms , pull-backs , manifolds , tensors , metrics , Lie derivatives and groups and killing vectors. Problems with solutions would also be good as I am self-studying. I already have the book " Geometrical methods of mathematical physics" by Schutz. Thanks.

You can always try the Schaum's Outline of Differential Geometry:

https://www.amazon.com/dp/0070379858/?tag=pfamazon01-20

This series contains worked examples and plenty of practice problems. IDK if it covers all the topics on your list, but it will get you started with the basics.
 
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  • #8
Is tensor calculus part of differential geometry or are they separate subjects ? Is General Relativity taught in 2 different ways ; one using tensors and one using differential forms or are they both combined in GR ?
 
  • #9
Tensor calculus is a part of differential geometry. GR is taught using tensors at the standard level. Using differential forms (Cartan calculus) is a fancy but useful way to write it, expecially when one thinks of GR's extensions: PGT, EC, SUGRA, etc.
 
  • #10
Tensors can show up in other areas of math and physics besides diff. geometry. One place I seem to stumble over them occasionally is in finding the principal axes of a general 3-D body. There are other applications in mechanics, involving stress analysis.

A lot of geometry has been formulated these days using matrix methods, to facilitate doing numerical calculations with computers, and it seems you run into tensors as a consequence of this also.
 

1. What is differential geometry?

Differential geometry is a branch of mathematics that studies the properties of curves, surfaces, and other geometric objects using calculus and linear algebra. It is used to understand the curvature and geometric structures of spaces.

2. What are some real-world applications of differential geometry?

Differential geometry has various applications in physics, engineering, computer graphics, and other fields. It is used to model the shape of objects in computer graphics, describe the motion of planets in space, and analyze the curvature of surfaces in materials science.

3. What are some basic concepts in differential geometry?

Some basic concepts in differential geometry include manifolds, tangent spaces, curvature, and connections. Manifolds are spaces that locally look like Euclidean space, tangent spaces are used to define derivatives on manifolds, curvature measures how much a space is curved, and connections are used to define paths on a manifold.

4. How can I visualize differential geometry?

Differential geometry can be visualized using various tools such as graphs, diagrams, and computer software. Visualization helps in understanding the geometric concepts and structures involved in differential geometry.

5. What are some resources for learning differential geometry?

There are many resources available for learning differential geometry, including textbooks, online courses, and video lectures. Some popular textbooks include "Differential Geometry of Curves and Surfaces" by Manfredo do Carmo and "Differential Geometry: A First Course" by D. Somasundaram. Online platforms like Coursera and edX also offer courses on differential geometry.

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