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Questions related from Raul Alvarez
The standard proof runs as follows: You start with the tensor algebra of the vector space in question, say V. Then you take the quotient by the ideal generated by elements of the form v \otimes...
06 June 2012 7,462 10 View
Today in class I heard the following affirmation: "In just the same way the photon field A_i has two helicities related by parity, the graviton, associated to the g_ij field, must have its...
02 February 2012 9,823 12 View
I feel weird without good looking math expressions
02 February 2012 9,521 1 View