Quote:
Originally Posted by lucagalbu
Hi! I had to send a message to a physics forum, but I'd like to know if it's syntactically and grammatically correct. Can you please check it out?
"Hi! I was taught that the dirac matrices are AT LEAST 4x4 matrices, so that means that I can find also matrices of higher dimensions. The question is: what do these higher-dimension-matrices represent? Are they just mathematical stuff or have they got a physical meaning? I ask that because in every textbook and in every course I used only the 4x4 matrices...
Thanks"
And just another thing: I used to start topics saying: "Hi there!": is this right or it sounds wrong/odd?
Thank you!
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Actually I think it should be "so that means that I can also find matrices of higher dimensions." I'm sure they'll understand you either way
And "Hi There!" is perfectly fine