2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100791In this paper, we give the white noise calculus for the Fermion system and prove the Fock expansion. Each continuous linear operator on Fermionic white noise functionals is uniquely represented by the series of integral kernel operators. This series is called the Fock expansion.Some errors and typos are correctedMathematical Physics46F25text