Before revision:  The ] basic risky asset price model  we construct here is  drift uncertain and volatility uncertain , we describe such model by using general G-Brownian motion and call it as G-asset price system.
After revision:  The ] basic risky asset price model on the uncertain financial market, which we construct here is drift uncertain and volatility uncertain , we describe such model by using general G-Brownian motion and call it as G-asset price system.