Talk:Feynman graph

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[edit] Graph vs diagram

Feynman graph and Feynman diagram is the same thing in physics, this page is better the mathematical interpretation of the Feynman graph. What is called falsly Feynman diagram is an ill-defined concept. The real distinction is between the covariant and noncovariant graph, the second has rigouros time ordering neglecting the spacely separation of the special relativity where the casuality does not held. Two such "diagrams" correspond to one "graph" in "that" language, this is not explained. In reality the second is THE Feynman graph/diagram, the first is historic and illustrative drawing also used, sometimes called even Feynman diagram, but better just to call it a particular process. Hidaspal 12:44, 10 May 2006 (UTC)

Feynman diagram is English usage. Septentrionalis 21:55, 5 December 2006 (UTC)