Gravitation:Foundations and Frontiers by T. Padmanabhan

  • Context: Relativity 
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Discussion Overview

The discussion revolves around the book "Gravitation: Foundations and Frontiers" by T. Padmanabhan, focusing on its content, pedagogical approach, and comparisons with other texts on general relativity (GR). Participants share their impressions and experiences with the book and related materials.

Discussion Character

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

Main Points Raised

  • One participant expresses excitement about the book and its potential appeal to those with a background in physics.
  • Another participant inquires about the treatment of differential forms in the book and whether it includes visual aids, referencing Wheeler's book on GR.
  • A participant notes the absence of pictures in the chapter on differential forms but appreciates the book's targeting of a more advanced audience, suggesting it is not suitable for beginners.
  • Some participants mention that the author includes exercises and projects that could be suitable for thesis topics, indicating an open research aspect.
  • One participant reflects on their past experiences with Wheeler's book and their ongoing interest in GR, despite challenges with the mathematics.
  • A comparison is made between Padmanabhan's book and Landau & Lifshitz, highlighting that Padmanabhan often provides alternative explanations and justifications for concepts that Landau glosses over.
  • Another participant recommends pairing Padmanabhan's book with Landau & Dalarsson's book for a comprehensive understanding of GR, noting Dalarsson's slower, more detailed approach to certain topics.

Areas of Agreement / Disagreement

Participants generally agree on the book's advanced nature and its suitability for readers with a solid background in physics. However, there are differing opinions on its pedagogical effectiveness and the inclusion of visual aids, indicating some unresolved preferences regarding teaching styles.

Contextual Notes

Some participants express uncertainty about the book's pedagogical approach and its effectiveness for different audiences, as well as the specific content covered in relation to other texts.

Who May Find This Useful

Readers interested in advanced topics in general relativity, particularly those familiar with other foundational texts like Wheeler's and Landau & Lifshitz, may find this discussion relevant.

For those who have used this book(Just to follow the pattern,feel free to vote if you have a point!)

  • Strongly Recommend

    Votes: 7 87.5%
  • Lightly Recommend

    Votes: 0 0.0%
  • Lightly don't Recommend

    Votes: 1 12.5%
  • Strongly don't Recommend

    Votes: 0 0.0%

  • Total voters
    8
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Looks pretty interesting. How well do they describe differential forms? Do they show pictures as was done in the Wheeler book on Gravitation?
 
jedishrfu said:
Looks pretty interesting. How well do they describe differential forms? Do they show pictures as was done in the Wheeler book on Gravitation?
Not even a single picture in that chapter! But from a few pages that I have read from the beginning of the book and also from the materials it covers, I can say its targeting an audience who are not beginners in physics. I mean, you can't call it a book for "beginning grad\advanced undergrad". So its not going to be that much pedagogical and it seems to me if you think about the right audience, then it becomes a good book in terms of pedagogy too. But I should say I felt this book is mine when I saw it the first time, so I really like it.
I should say that the author explains that some of the exercises and projects in the book are even proper for being chosen for a thesis topic and some are even still open to research!
 
That's great. If I get the chance I'll have to check it out. GR was always a fascinating topic for me. I studied from Wheelers book when it was available as preprints at school and always had fond feelings for that time even though I was totally lost in the math.

More recently I got Zees book for similar reasons but it's a lot harder and I am a lot older but it's still fun to look at and imagine that some day understanding will come.
 
It's a modern update of Landau & Lifshitz, usually doing the same thing Landau does but then giving two alternative ways of doing the same thing, or nicely justifying something Landau slightly glossed over (e.g. that ds'^2 = ds^2 in special relativity). It also includes more information. There are videos following the book here

https://www.youtube.com/playlist?list=PLGqalPsP5GRDb9LUhPKisP245W4yTMBYF

His intuition is sheerly amazing, the videos are worth it for his diversions alone.

I would recommend this book with Landau & Dalarsson's book as a trio, where Dalarsson is the kind of book that will actually work out the Christoffel symbols explicitly and go really slow still following Landau's presentation, but Landau's book is still the best, I mean his presentation of GR mimics his presentation of SR & EM, you'll have done the gist of it twice already by the time you read the GR sections.
 
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