Name: Vladyslav Shtabovenko (email_not_shown)
Date: 12/18/14-03:16:27 PM Z


Hi Sun,

thanks for reporting this issue. The bug is now fixed
in the development version

<https://github.com/FeynCalc/feyncalc/commit/7a1abf7a6e4e32cb871538fb5c8457c690419ecf>

and

FourDivergence[FV[k1, alpha] FV[k1, beta] (SP[k1, q] + 2 SP[k2, q]),
  FV[q, gamma]]

returns

Pair[LorentzIndex[alpha], Momentum[k1]]*Pair[LorentzIndex[beta],
Momentum[k1]]*Pair[LorentzIndex[gamma], Momentum[k1]] +
  2*Pair[LorentzIndex[alpha], Momentum[k1]]*Pair[LorentzIndex[beta],
Momentum[k1]]*Pair[LorentzIndex[gamma], Momentum[k2]]

as it should.

Cheers,
Vladyslav



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