TY - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) A1 - ZHANG Jie-song T1 - Diffusion approximation and optimal investment for modern risk model Y1 - 2017-05-20 JF - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) SP - 49 EP - 57 VL - 52 IS - 5 UR - http://lxbwk.njournal.sdu.edu.cn N1 - 10.6040/j.issn.1671-9352.0.2016.244 ER -