On January 28, 2020, Dillon Mayhew from Victoria University of Wellington, New Zealand gave a talk on problems and results motivated by Courcelle’s theorem, with an emphasis on hypergraphs and matroids. The title of his talk is “Courcelle’s Theorem for hypergraphs“.

## Adam Zsolt Wagner gave a talk on an extremal problem in Z_{2^n} at the discrete math seminar

On January 20, 2020, Adam Zsolt Wagner from ETH Zurich gave a talk on the largest subset of $\mathbb Z_{2^n}$ having no projective $d$-cube. The title of his talk was “The largest projective cube-free subsets of $Z_{2^n}$“. He has been visiting IBS discrete mathematics group for a week and will leave on this Wednesday.

## Ben Lund gave a talk on the problem on Furstenberg sets over field fields related to the Kakeya conjecture at the discrete math seminar

On January 15, 2020, Ben Lund from Princeton University gave a talk about a generalization of the Kakeya conjecture posed by Ellenberg, Oberlin, and Tao. The title of his talk was “Furstenberg sets over finite fields“. He is visiting the IBS discrete mathematics group until January 21, Tuesday.

## Sanjeeb Dash gave a talk on the integer programming approach to the interpretable machine learning at the discrete math seminar

On January 14, 2020, Sanjeeb Dash from IBM T. J. Watson Research presented a talk on the integer programming formulation for the problem arising from the interpretable machine learning. The title of his talk was “Boolean decision rules via column generation“. He is visiting IBS Discrete Mathematics Group until the end of this week.

## Welcome Sounggun Wee (위성군), a new graduate student in the IBS discrete mathematics group

The IBS discrete mathematics group welcomes **Sounggun Wee (위성군)**, a new graduate student at the IBS discrete mathematics group since January 2020. He is currently a graduate student at the department of mathematical sciences, KAIST.