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seen Nov 14 '12 at 23:53

Oct
12
comment Electromagnetic 4-potential and basic index contraction
Again, thank you very much!
Oct
12
comment Electromagnetic 4-potential and basic index contraction
Thank you so much, that was most helpful and I am finally starting to makes sense of it. I have added a #4 to my questions, I hope I am not abusing your kindness.