The elegant "Brink-Di Vecchia-Howe action" for the bosonic string (start of the day):pic.twitter.com/f9rdRLxfK3
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Something I've always wondered. Is there a name for the ∫d^n convention I see so often in action integrals?
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S = yada ∫(d^n) yada yada, and sometimes The differential with the superscript in parentheses.
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I've just noticed it a few times, usually in action definitions, and always put out in front.
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