On a conjecture by Belfiore and Sol\'e on some lattices
  The point of this note is to prove that the secrecy function attains its maximum at y=1 on all known extremal even unimodular lattices. This is a special case of a conjecture by Belfiore and Sol\'e. Further, we will give a very simple method to verify or disprove the conjecture on any given unimodular lattice. 
Anne-Maria Ernvall-Hyt\"onen
cs.IT math.IT math.NT