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)?