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A question about notation

  1. Nov 22, 2012 #1
    Hello, I am reading the paper "Covariant Action for a D=11 Five-Brane with the Chiral Field".
    I don't understand the [itex](\partial a)^2[/itex] in the dual field strength [itex]\widetilde{F}_{mn}\equiv\frac{1}{\sqrt {(\partial a)^2}}F^*_{mnl}\partial^la(x)[/itex].
    Is it ##\partial_ra\partial^ra##?

    Regards.
     
  2. jcsd
  3. Nov 23, 2012 #2
    Yes, I think that could be correct.
     
  4. Nov 23, 2012 #3
    ok, thank you!
     
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