Anubhab Ghosal
University of Oxford
Andrew Wiles Building
Radcliffe Observatory Quarter
Woodstock Road
Oxford
OX2 6GG
Recent Publication(s)
A. Ghosal, R. Goenka, and P. Keevash
On subsets of lattice cubes avoiding affine and spherical degeneracies
Disc. Comp. Geom. (2026)
Preprints
A. Ghosal, R. Goenka, A. Grebennikov, P. Keevash, M. Kwan, and H. T. Pham
No-(k+1)-in-line problem for k>=3
arXiv:2607.05255
A. Ghosal
A note on the extensible no-three-in-line problem
arXiv:2605.07000
A. Ghosal
On the number of sum-free subsets of the square grid
arXiv:2510.15621
Hi! I am Anubhab, a second-year DPhil Student interested in Extremal, Additive and Probabilistic Combinatorics, as well as Discrete Geometry. More specifically, I have worked on extremal and counting questions arising from Additive Combinatorics (sum-free, product-free sets) and Discrete Geometry (circle-free, line-free sets) using techniques such as hypercontractivity, hypergraph containers and non-Abelian Fourier Analysis.
My supervisors are Peter Keevash (Oxford) and Rob Morris (IMPA).
2025-26
Stipendiary Lecturer in Maths at St Edmund Hall
Prelims Linear Algebra (MT, HT), Group Theory (HT, TT)
Part A Metric Spaces (MT), Topology (HT), Calculus of Variations (TT)
2024-25
Tutor for Part C Additive Combinatorics (HT) and Probabilistic Combinatorics (HT)
Tutor for Part A Probability at St Edmund Hall (MT, TT)
TA for Part B Graph Theory (MT)
Clarendon Fund Scholarship, 2024-28
Gibbs Prize for FHS Mathematics Part C, 2024
Simon and June Li Scholarship, 2020-24
Silver Medal, IMO 2019