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18.226

Probabilistic Methods in Combinatorics

3-0-9 units · Graduate

Introduction to the probabilistic method, a fundamental and powerful technique in combinatorics and theoretical computer science. Focuses on methodology as well as combinatorial applications. Suitable for students with strong interest and background in mathematical problem solving. Topics include linearity of expectations, alteration, second moment, Lovasz local lemma, correlation inequalities, Janson inequalities, concentration inequalities, entropy method.

Fall 2022

This course is a graduate-level introduction to the probabilistic methods, a fundamental and powerful technique in combinatorics and theoretical computer science. The essence of the approach is to show that some combinatorial object exists and prove that a certain random construction works with positive probability. The course focuses on methodology as well as combinatorial applications.

Readings

  • Alon, Noga and Joel H. Spencer. The Probabilistic Method . Wiley, 2016. ISBN: 9781119061953. (The fourth edition is the latest, but earlier editions suffice.)
    Listed reading

Prerequisites & course information

Prereq: ( 18.211 , 18.600 , and ( 18.100A , 18.100B , 18.100P , or 18.100Q )) or permission of instructor Acad Year 2027-2028: G (Fall) Acad Year 2028-2029: Not offered 3-0-9 units

Sources