Eager to learn 3+1 decomposition

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Discussion Overview

The discussion revolves around the "3+1 decomposition" in the context of ADM (Arnowitt-Deser-Misner) formalism and tetrad formalism. Participants seek resources such as posts, notes, and books that provide introductions to these concepts, with varying levels of complexity and detail.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant requests resources for a complete introduction to "3+1 decomposition" in both ADM and tetrad formalism.
  • Another participant shares a link to a historical paper by Arnowitt, Deser, and Misner, noting its significance as the first appearance of the ADM formalism.
  • A different participant suggests revising the original inquiry to seek a "nice easy" introduction rather than a "complete" one, indicating a desire for more accessible resources.
  • One participant expresses the need for a comprehensive introduction to tetrad formalism, mentioning familiarity with MTW's work on ADM formalism.
  • A participant identifies themselves as a graduate student interested in the LQG (Loop Quantum Gravity) community, indicating a background in related fields but limited knowledge of specific topics.

Areas of Agreement / Disagreement

Participants do not reach a consensus on specific resources or the level of detail required. Multiple viewpoints on the nature of the inquiry and the desired complexity of resources remain evident.

Contextual Notes

Some participants express a desire for resources that include intermediate steps in calculations, indicating a potential limitation in available materials that meet this criterion.

kakarukeys
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Eager to learn "3+1 decomposition"

Is there any post, notes, books that gives complete introduction to "3+1 decomposition" in ADM fashion, as well as in tetrad formalism?
 
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kakarukeys said:
Is there any post, notes, books that gives complete introduction to "3+1 decomposition" in ADM fashion, as well as in tetrad formalism?

this is something you might like to know, even though it does not exactly answer the question

http://arxiv.org/abs/gr-qc/0405109
The Dynamics of General Relativity
R. Arnowitt (Syracuse Univ.), S. Deser (Brandeis Univ.), C. W. Misner (Princeton Univ.)
30 pages, no figures
Journal-ref: "Gravitation: an introduction to current research", Louis Witten ed. (Wiley 1962), chapter 7, pp 227--265
"This article--summarizing the authors' then novel formulation of General Relativity--appeared as Chapter 7 of an often cited compendium edited by L. Witten in 1962, which is now long out of print. Intentionally unretouched, this posting is intended to provide contemporary accessibility to the flavor of the original ideas. Some typographical corrections have been made: footnote and page numbering have changed--but not section nor equation numbering etc. The authors' current institutional affiliations are encoded in: arnowitt@physics.tamu.edu, deser@brandeis.edu, misner@physics.umd.edu ."

You are asking about the ADM formalism for Gen Rel.
This paper is interesting because it is the first appearance of it, in a 1962 article by ADM themselves. It was recently scanned and made available electronically on arxiv, to provide "contemporary accessibility."

I hope someone else can provide a link to a recent pedagogical exposition of ADM formalism. After 40 years there should be available some streamlined introductions and explanations, hopefully ONLINE so one does not have to rely on the usual hardcopy classics.

BTW if you have access to a college or university library so that it would be convenient for you to consult hardcopy textbooks, did you look in MTW Gravitation (Misner, Thorne, Wheeler)?
 
Last edited:
Hey kakarukeys, let's revise your original inquiry to get rid of the word "complete" and see if we get some more different suggestions. How about we change it to "nice easy"

Is there any post, notes, books that gives nice easy introduction to "3+1 decomposition" in ADM fashion, as well as in tetrad formalism?

Garrett that Peldan article is formidable. It requires considerable self-confidence just to contemplate Figure 1 that shows all the various 3+1 Lagrangians and Hamiltonians for General Relativity and how they relate to each other. A rare and impressive thoroughness, in my humble.
 
Ok thanks.
Ya. Nice and Easy, with no or few omission of intermediate steps of calculations.
I am following MTW on ADM formalism.
I need comprehensive introduction to the same technique in Tetrad formalism. (You may call it Vierbeins, or Cartan's).
 
I am a graduate students who are curious what's going on in LQG community, but only equipped with only general knowledge of differential geometry, general relativity, quantum field theory.
 

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