p-Adic Path Integrals for Quadratic Actions
  The Feynman path integral in p-adic quantum mechanics is considered. The probability amplitude   ${\cal K}_p (x^{\prime\prime},t^{\prime\prime}; x^\prime,t^\prime)$   for one-dimensional systems with quadratic actions is calculated in an exact form, which is the same as that in ordinary quantum mechanics. 
G. S. Djordjevic and B. Dragovich