Re: Seeking diagramatic tensor notation tutorial or reference
- From: nurban@xxxxxxxxxxxxxxxxxx (Nathan Urban)
- Date: Wed, 3 May 2006 22:21:34 +0000 (UTC)
In article <j_Y5g.105$Qq.10@xxxxxxxxxxxxxxxxxxxx>, "Herb Martin" <news@xxxxxxxxxxxxxx> wrote:
I am seeking diagrammatic tensor notation tutorial or reference
preferably online or downloadable.
Online, look through John Baez's website,
http://math.ucr.edu/home/baez/
He writes about that from time to time in this This Week's Finds
series (although I don't know which issues), and has written some
related papers. You may be able to find some in his "Serious Stuff"
page as well as his "Quantum Gravity Seminar". The latter is probably
your best bet for an intro.
In "The Road to Reality" Penrose introduces this diagramming
method but largely hand waves passed the rules, syntax, etc.
I can't remember how much detail he goes into there but you may find
more detail in _Spinors and Space-Time_ by Penrose & Rindler. IIRC
one of the appendices discusses diagrammatic tensor notation. You can
also go to a university library and hunt down Penrose's "Applications
of Negative Dimensional Tensors", in _Combinatorial Mathematics and Its
Applications_, ed. D. Welsh, Academic Press, New York, 1971, pp. 221-244.
.
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