Title: Gravitation, gauge theories and differential geometry. Authors: Eguchi, Tohru; Gilkey, Peter B.; Hanson, Andrew J. Affiliation: AA(Stanford Linear. Eguchi, Tohru; Gilkey, Peter B.; Hanson, Andrew J. Dept.), Andrew J. Hanson ( LBL, Berkeley & NASA, Ames). – pages. 5 T Eguchi, P Gilkey and A J Hanson Physics Reports 66 () • 6 V Arnold Mathematical Methods of Classical Mechanics, Springer.

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Definitely not appropriate for students. September 4, at 8: In addition, I just took a look again at the review article by Eguchi, Gilkey and Hanson see here or here from which I egucni learned a lot of this material. There are very few of them in any career and each epiphany comes but once. My initial foray into this book suggests that it is very much written in physicist-speak rather egguchi mathematician-speak.

September 5, at 8: Steve Bryson sent me another excellent suggestion for a book covering these topics, aimed at the physical applications: You could just immediately start building. If pressed, I might be able to recall the solution to the heat equation.

Then, mysteriously, the old text is forgotten as new pedagogical texts attempt to reach students rather than professors. September 8, at It seems to cover the kinds of things you want to touch upon connections on principal bundles.

Modern Geometry

September 5, at September 13, at 5: Peter, What are the pre-requisites for your course in real analysis, algebra, geometry, linear algebra? Although if you want the full expressiveness of tensor calculus in index-free notation, you would be intoxicated by a plethora of definitions instead.

September 6, at 4: The Eguchi—Hanson metric egucji the prototypical example of a gravitational instanton. While I think he is not right, there is a grain of truth in his remark. What would be nice is a review where one can really see the power of sophisticated methods in doing calculations. In general though, I think the power of the abstract geometrical formalism is that it tells you what the general coordinate independent features of solutions will be.


A major goal of the course is to get to the point of writing down the main geometrically-motivated equations of fundamental physics and a few of their solutions as examples. Ideally Egucni think every theoretical physicist should know enough about geometry to appreciate the geometrical basis of gauge theories and general relativity.

Gravitation, Gauge Theories and Differential Geometry – INSPIRE-HEP

I have been intrigued by the idea of formulating differentiable manifolds in a formalism more parallel to the definitions in terms of a sheaf of gikkey common in algebraic geometry and topology.

September 12, at 3: Aside from its inherent importance in pure geometrythe space is important in string theory. If you are comfortable with Riemannian geometry, GR is not hard. September 4, at 4: I am an extreme example, but all my knowledge of differential equations comes from teaching the standard first undergraduate course on linear ODEs, and I learned that by TAing the course, not by ever having taken it. Classical gauge theory as fibre bundle mathematics is certainly beautiful, however when quantizing the occurring fields transforms this into completely different entities.

Modern Geometry | Not Even Wrong

September 5, at 4: Can you point to a graduate-level mathematics textbook covering whatever you think it is? Most books do this in the other order, although Kobayashi and Nomizu does principal bundles first. The Eguchi-Hanson metric has Ricci tensor equal to zero, making it a solution to the vacuum Einstein equations of general relativity, albeit with Riemannian rather than Lorentzian metric signature.

The real work goes into many pages of definitions which are given almost without gilkwy. Proudly powered by WordPress. This is a story both physicists and mathematicians should know about.

As a consequence, it is often worth going back and looking for the text s egichi transitioned professors into a more modern viewpoint as they often have far more motivation and clarity than later introductory texts. September 6, at 1: September 4, at Differential geometry String theory Differential geometry stubs String theory stubs. The best eghchi that I can offer is this: This includes the Einstein eqs. By using this site, you agree to the Terms of Use and Privacy Policy. Kobayashi and Nomizu is a beautiful book which I now appreciate but I found it frustrating when I was learning the subject and it took me many years to understand why — it is deceptive because they prove some of the most beautiful theorems in 2 lines.


The holonomy group of this 4-real-dimensional manifold is SU 2as it is for a Calabi-Yau K3 surface.

September 8, at 2: Hey Peter, After preparing hxnson this course, have you had any thoughts about studying synthetic differential geometry? From Wikipedia, the free encyclopedia.

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But, in any particular case, to actually calculate you may need to choose coordinates, better, coordinates adapted to the problem. However, in general, one problem many physicists have with talking to the general pure mathematical audience today is that they assume too much knowledge of differential equations. Strangely, this old book or set of notes seemed much clearer and better motivated than the treatment in the leading contemporary pedagogical text of the time by Robin Harthshorne.

September 5, at 3: To me, the main disconnect is that there is an extensive physics literature on instantons, monopoles, and other topological phenomena, in which many interesting phenomena are computed instanton contribution to effective lagrangians and the OPE, axial charge diffusion in an EW plasma, defect formation in phase transitions, baryon number fguchi, etcand then there is a mathematical or mathematical physics literature in which a beautiful formalism is laid out bundles, forms, etcbut nothing is really computed or if something is hansin it is done by choosing coordinates, and writing things out in components.