Program Contact

College of Computing
Georgia Institute of Technology
Atlanta, GA 30332-0280

School of Industrial and Systems Engineering
Georgia Institute of Technology
Atlanta, GA 30332-0205

School of Mathematics
Georgia Institute of Technology
Atlanta, GA 30332-0160

Application Deadlines

December 15

Admittance Terms


Degree Programs

  • Ph.D., Algorithms, Combinatorics, and Optimization (ACO)

Areas of Research

Research areas being investigated by faculty of the ACO Program include such topics as:

  • Structural and topological graph theory
  • Coloring problems (including the Four Color Theorem)
  • Paths, cycles and flows in graphs
  • Probabilistic methods in combinatorics
  • Probability on graphs
  • Algebraic combinatorics
  • Computational algebra and geometry
  • Distributed computing
  • Algorithm complexity
  • Design and analysis of algorithms
  • Approximation algorithms
  • Algorithmic problems in coding theory
  • Fault-tolerant computing
  • Voting theory
  • Airline crew and fleet scheduling
  • Parallel computation
  • Interior point methods in mathematical optimization
  • Geometry of convex bodies
  • Machine learning theory
  • Other related areas

For more information, you may look at the personal Web pages of ACO affiliated faculty members.

Interdisciplinary Programs

Algorithms, Combinatorics, and Optimization (ACO) is offered by the College of Engineering through the Industrial and Systems Engineering Department, the College of Sciences through the Mathematics Department, and the College of Computing. To be considered for admission to ACO, a student must be admitted to the doctoral program in one of these units. Students must select a home school from one of the following disciplines:

For additional information about applying to the ACO program through one of these schools, please select from the list above.

Standardized Tests

IELTS Academic Requirements

  • Varies among home units.

TOEFL Requirements

  • Varies among home units.

GRE Requirements

  • Varies among home units.

Application Requirements

Application requirements vary based on home unit.

Program Costs

  1. Go to "View Tuition Costs by Semester," and select the semester you plan to start. Graduate-level programs are divided into sections: Graduate Rates–Atlanta Campus, Study Abroad, Specialty Graduate Programs, Executive Education Programs
  2. Find the degree and program you are interested in and click to access the program's tuition and fees by credit hour PDF.
  3. In the first column, determine the number of hours (or credits) you intend to take for your first semester.
  4. Determine if you will pay in-state or out-of-state tuition. Learn more about the difference between in-state and out-of-state. For example, if you are an in-state resident and planning to take six credits for the Master of Architecture degree, the tuition cost will be $4,518.
  5. The middle section of the document lists all mandatory Institute fees. To see your total tuition plus mandatory fees, refer to the last two columns of the PDF.