In White Noise Analysis (WNA), various random quantities are analyzed as elements of (S)∗, the space of Hida distributions ([1]). Hida distributions are generalized functions of white noise, which is to be naturally viewed as the derivative of the Brownian motion. On (S)∗, the Wick product is defined in terms of the S-transform. We have found such a remarkable property that the Wick product has...