Born: 1952.
Citizenship: German.
Education:
1976: Diploma in mathematics, University of Göttingen.
1978: Doctoral degree in mathematics, University of Göttingen.
1981: Habilitation in mathematics, University of Göttingen.
Position: Professor of Applied Mathematics at the University of Osnabrück from 1982 on.
Visiting Professorships: University of Hamburg, University of Toronto, Lehigh University, Hebrew University of Jerusalem, and University of Haifa.
Stochastic processes in operations research: queues, inventory, reliability and maintenance, renewal theory.
Renewal theory and its applications.
Sequential decision-making, dynamic optimization, optimal stopping.
Analytic methods in applied probability theory.
Multivariate distribution theory, characterization of distributions.
Combinatorial probability theory.
1990-1992: Optimal incentives in stochastic R&D models (with Dror Zuckerman); Volkswagen Foundation.
1993-1996: Maintenance strategies with general degree of repair for stochastically failing equipment (with Dror Zuckerman); German-Israeli Foundation for Research and Development (GIF).
1993-1994: Optimal control in repair models; Minerva Foundation.
1997-1999: Optimal selection strategies for risky investments (with Yuliy Baryshnikov und David Assaf); Volkswagen Foundation.
1997-1999: Performance measures of queueing systems (with Panganamala R. Parthasarathy); German Airospace Society.
1998-1999: Inventory systems for perishable goods (with David Perry); German Science Foundation (DFG).
2000-2002: Stochastic storage systems in a random environment (with Offer Kella); Volkswagen Foundation.
2004-2006: Reflected networks: stability and martingale analysis (with Offer Kella); Volkswagen Foundation.
2005-2006: Queueing techniques for inventory models (with David Perry); German Science Foundation (DFG).
2009-2013: Queues with workload-dependent controls; German Science Foundation (DFG
2014-2016: Stochastic models for the inventory management of blood banks (with Shaul Bar-Lev and David Perry); German-Israeli Foundation for Research and Development (GIF).