Humboldt-Universität zu Berlin | Wirtschaftswissenschaftliche Fakultät | High Dimensional Nonstationary Time Series | About us | News Feed | News 2017 | Our team: Position for S. Trimborn Our team: Position for S. Trimborn 03.02.2017.Simon Trimborn, IRTG PhD student, received an offer by National University Singapure (SG) to continue his PhD studies in the Department of Statistics and Applied Probability. Congratulations!