Anubhab Ghosal

Anubhab works in Combinatorics, the branch of mathematics concerned with discrete structures such as graphs (often called networks outside mathematics), the integers, and finite groups. A central theme in his work is extremal combinatorics, which studies how large or small a structure can be while avoiding a particular forbidden pattern.

He is particularly interested in such questions when the underlying structures are geometric or additive in flavour. For example, he has worked on variants of the classic no-three-in-line problem, which asks how many points can be chosen in an n×n grid so that no three of them lie on the same straight line. In tackling deceptively simple puzzles like this, Anubhab draws on a wide range of mathematical techniques – some quite elementary, others considerably more sophisticated.

Anubhab is teaching Linear Algebra to First Years and Metric Spaces to Second Years in Michaelmas 2025.