What subjects are there under the branch of operational research?

The main branches of operational research: linear programming, integer programming, nonlinear programming, dynamic programming, graph and network analysis and game theory.

Operational research mainly studies the planning and management problems that can be expressed quantitatively in economic activities and military activities. Of course, with the development of objective reality, many contents of operational research not only study economic and military activities, but also go deep into daily life. Operations research can get various results through mathematical analysis and operation according to the requirements of the problem, and finally put forward comprehensive and reasonable arrangements to achieve the best results.

As a discipline used to solve practical problems, operational research generally has the following steps when dealing with various problems: determining goals, making plans, establishing models and making solutions. Although it is impossible for operational research to deal with a wide range of objects, some abstract models have been formed in the development of operational research and can be applied to solve a wide range of practical problems.

With the development of science and technology and productivity, operational research has penetrated into many fields and played an increasingly important role. Operational research itself is constantly developing, covering linear programming, nonlinear programming, integer programming, combinatorial programming, graph theory, network flow, decision analysis, queuing theory, reliability mathematics theory, inventory theory, game theory, search theory and simulation.

The application field of operational research is very wide, which has penetrated into service, search, population, confrontation, control, timetable, resource allocation, site selection, energy, design, production, reliability and so on.