TY - 数学物理学报(英文版) A1 - Yan Zhang, Peibiao Zhao, Huaren Zhou T1 - THE OPTIMAL REINSURANCE-INVESTMENT PROBLEM CONSIDERING THE JOINT INTERESTS OF AN INSURER AND A REINSURER UNDER HARA UTILITY* Y1 - 2023-02-25 JF - Acta Mathematica Scientia JO - 数学物理学报(英文版) SP - 97 EP - 124 VL - 43 IS - 1 UR - http://121.43.60.238/sxwlxbB N1 - 10.1007/s10473-023-0107-6 ER -