On April 16, 2024, Magnus Wahlström from Royal Holloway, University of London gave a talk at the Discrete Math Seminar on various algorithmic aspects of linear delta-matroids. The title of his talk was “Algorithmic aspects of linear delta-matroids“.

## Eero Räty gave a talk on lower bounds for the positive discrepancy of graphs of average degree d at the Discrete Math Seminar

On April 9, 2024, Eero Räty from Umeå University gave a talk at the Discrete Math Seminar on lower bounds for the positive discrepancy of graphs of average degree d. The title of his talk was “Positive discrepancy, MaxCut and eigenvalues of graphs.” He is currently visiting the IBS Extremal Combinatorics and Probability Group for 2 months.

## Casey Tompkins gave a talk on the maximum number of edges in a graph without cycles of length 0 mod 4 at the Discrete Math Seminar

On April 2, 2024, Casey Tompkins from the Alfréd Rényi Institute of Mathematics gave a talk at the Discrete Math Seminar on the maximum number of edges in a graph without cycles of length 0 mod 4. The title of his talk was “On graphs without cycles of length 0 modulo 4“.

## Welcome Semin Yoo (유세민), a new member of the IBS Discrete Mathematics Group

The IBS Discrete Mathematics Group welcomes Dr. Semin Yoo (유세민), a new research fellow at the IBS Discrete Mathematics Group, from April 1, 2024. She received her Ph.D. from the University of Rochester under the supervision of Prof. Jonathan Pakianathan. She is interested in combinatorics, discrete geometry, and number theory in finite fields.