Proof of a conjecture by Gazeau et al. using the Gould Hopper   polynomials
  We prove the "strong conjecture" expressed by Gazeau et al. in arXiv:1203.3936v1 [math-ph] about the coefficients of the Taylor expansion of the exponential of a polynomial. This implies the "weak conjecture" as a special case. The proof relies mainly about properties of the Gould-Hopper polynomials. 
C. Vignat and O. L\'ev\^eque
math-ph math.MP