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View Full Version : Differential Geometry for General Relativity


MiliAsk
Oct 31, 2011, 12:41 PM
MIT Introduction to Tensor Calculus for General Relativity
1999 Edmund Bertschinger:

The distinction between one-forms and vectors is necessary because probability amplitudes are complex numbers.

My Question is: who is bringing complex number nature to the scalar product one-forms, vectors or both?