Lizwi
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[itex]\oplus[/itex] what does this symbol mean. I was confused in special relativity when notes say u' [itex]\oplus[/itex] v [itex]\neq[/itex] u' + v.
What does ⊕ mean in special relativity?
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Hi Lizwi! 
What is the context?
Sometimes mathematicians run out of symbols, and recycle a symbol they think nobody wants!
My guess is that this is the addition of relative-velocities formula, and that this author is simply using it as a shorthand for that form of addition.
(in other words: it's his symbol for multiplication in the group of relative-velocities)
Lizwi said:
What is the context?
Sometimes mathematicians run out of symbols, and recycle a symbol they think nobody wants!
My guess is that this is the addition of relative-velocities formula, and that this author is simply using it as a shorthand for that form of addition.
(in other words: it's his symbol for multiplication in the group of relative-velocities)