Cornell University

Graduate School

Graduate SchoolFields of Study

Operations Research Ph.D. (Ithaca)

Field of Study

Operations Research and Information Engineering

Program Description

Doctoral students majoring in operations research concentrate in one of three areas:

Applied probability and statistics stresses the techniques and associated underlying theory of probability and statistics, particularly as applied to problems in science, finance, and engineering. The techniques emphasized are those associated with applied stochastic processes (for example, mathematical finance, queuing theory, traffic theory, and inventory theory) and statistics (including statistical decision theory, reliability theory, analysis of life data, and the statistical aspects of the design, analysis, and interpretation of experiments and of ranking and selection theory).

Manufacturing systems engineering is concerned with the analysis and design of complex manufacturing and distribution systems. Problems studied include the establishment of inventory-control policies in multistage production and distribution systems; design of manufacturing plants with optimal amounts of equipment and optimal materials-handling systems; planning and scheduling of production in large-scale, multi-item, multi-location systems; and economic analysis of engineering processes. Students use modern analytic and computer techniques in the design and analysis of such systems. Students are expected to understand the manufacturing processes associated with some type of industry. Research, which may involve development of new mathematical methodology, is often conducted directly with a cooperating company, for example, in automotive or semiconductor manufacturing.

Mathematical programming concentrates on optimization, including linear, nonlinear, integer, and combinatorial programming; network flows; problems of scheduling and sequencing; and discrete and computational geometry. Research ranges from the development and applications of computational algorithms (exact and approximate) to the associated studies of duality theory, convex and variational analysis, polyhedra, combinatorics, and graph theory.

Doctoral students also select two minor subjects for the Ph.D. degree, one of which must be outside the field. A minor may be in operations research or in a subject offered in another field, such as computer science, econometrics and economic statistics, environmental systems engineering, managerial economics, mathematics, or planning theory and systems analysis.

In addition to the examinations required by the Graduate School, the field requires a qualifying examination for Ph.D. degree candidates, normally taken in the third term of graduate study at Cornell. 

For more information on the Ph.D. program, see: https://www.orie.cornell.edu/orie/programs/phd-program

Contact Information

Website: http://www.orie.cornell.edu
Email: orie@cornell.edu
Phone: 607 255-9128

201 Frank H. T. Rhodes Hall
Cornell University
Ithaca, NY  14853

Concentrations by Subject

  • applied probability and statistics
  • manufacturing systems engineering
  • mathematical programming

Tuition

$29,500

Application Requirements and Deadlines

Application Deadlines:

Fall: Jan 5, Spring: no admission,

Requirements Summary:

*While we still encourage the applicants for Fall 2021 admission to take the test, if possible, during this admission cycle we will consider applications without recent GRE scores. If you cannot take a GRE test due to the Covid-19 restrictions and disruptions, please include in your application a statement explaining why taking a test in a timely manner is difficult or impossible for you, and your application will be considered. 

Learning Outcomes

  • Master the core tools of operations research and the mathematical foundations on which they rest.
  • Demonstrate computational proficiency.
  • Develop expertise in one of three areas of concentration -- applied probability and statistics, manufacturing systems engineering, or mathematical programming (optimization) -- and depth in two minor subjects in engineering, science (including mathematics), or technical areas of business (e.g., finance).
  • Develop and demonstrate advanced research skills, including ability to identify research opportunities, synthesize and extend existing knowledge, and communicate effectively in both written and oral exposition.
  • Make an original and significant contribution to the discipline.