The Department of Mathematical Sciences offers doctoral programs (first-level disciplines) in both Mathematics and Statistics. Mathematics comprises five second-level disciplines: Fundamental Mathematics, Applied Mathematics, Computational Mathematics, Probability and Mathematical Statistics, and Operations Research and Control Theory. Statistics covers areas including Mathematical Statistics, Financial Statistics, and Probability Theory. In 2010, the Department established a professional Master's program in Applied Statistics with two concentrations: Financial Mathematics and Financial Statistics, and Biostatistics and Medical Statistics. Building on this disciplinary structure, the Department has formed nine high-level research teams: Mathematical Physics; Algebra (including Algebraic Geometry, Number Theory, Representation Theory); Differential Geometry and Geometric Analysis; Differential Equations and Functional Analysis; Complex Analysis and Dynamical Systems; Computational Mathematics; Operations Research (including Programming, Combinatorics, and Supply Chain); Interdisciplinary Studies; and Probability, Statistics, and Financial Mathematics. The Department consistently upholds its philosophy of exploring frontier mathematical theories while building a rigorous, standardized, and diverse graduate training system.