The IBS discrete mathematics group welcomes Dr. Nika Salia and Dr. Zixiang Xu (徐子翔), new research fellows at the IBS Extremal Combinatorics and Probability Group from September 1, 2022.
![](https://dimag.ibs.re.kr/cms/wp-content/uploads/2022/09/nika-300x300.jpg)
Dr. Nika Salia received his Ph.D. from the Central European University in 2021 under the supervision of Prof. Ervin Győri.
![](https://dimag.ibs.re.kr/cms/wp-content/uploads/2022/09/zixiang-11-300x300.jpg)
Dr. Zixiang Xu (徐子翔) received his Ph.D. from the Capital Normal University of China in 2022 under the supervision of Prof. Gennian Ge.