Standard test methods for apparent porosity , water absorption , apparent specific gravity , and bulk density of burned refractory brick and shapes by boiling water 用沸水法测定煅烧耐火砖和异型砖的表观多孔性吸水性表观比重及松密度的标准试验方法
This paper considers a market in which the prices of the securities follow diffussion - jump processes and the brownian motion and drift process are not directly observable and the only available information for investors are the prices of the securities , the intensity functions of the possion processes and the interet rate 摘要本文考虑一个这样的市场环境：风险资产的价格是一个跳跃扩散过程并且价格动态方程中所包含布朗运动以及漂移过程都是不能直接观测的，投资者仅能观测到股票的价格、泊松密度函数及无风险利率。
