The results of Yuli Liangs thesis, Contributions to Estimation and Testing Block Covariance Structure in Multivariate Normal Models, can be used in physics as well as medicine, among other scientific fields.

Yuli gave initiated answers to the questions from both the discussant, Associate Professor Ivan Žežula, Institute of Mathematics, Science Faculty, PJ Safarik University in Košice, Slovak Republic, and the questions from the examination board.

We are very happy to congratulate Yuli to her achieved PhD, which we celebrated with coffee and cake in the Department lounge!

Tatjana von Rosen from the Department of Statistitics was Yuli Liangs main supervisor.