Curriculum Vitae:

• 1947 born in Greiz, Thuringia. Married, four children (23, 17, 15 and 4)
• 1953 - 1961 Elementary School, Greiz
• 1961 - 1965 Highschool, Greiz
• 1965 - 1967 Study of Mathematics, University of Jena, Thuringia
• 1967 - 1969 Military service
• 1969 - 1971 Study of Mathematics, University of Jena, Thuringia
• 1971 Diploma in Mathematics, University of Jena
• 1971 - 1985 Assistent, Institute of Mathematics, University of Jena
• 1974 Ph.D. (Dr. rer. nat.) in Computer Science, University of Jena
• 1977 Habilitation (Dr. sc. nat.) in Computer Science, University of Jena
• 1985 Assistent Professor (Theoretical Computer Science), Institute of Technology at Ilmenau, Thuringia
• 1986 Assistent Professor (Theoretical Computer Science), University of Passau, Bavaria
• 1986 - 1988 Associate Professor (Theoretical Computer Science), University of Augsburg, Bavaria
• 1988 - Full Professor (Theoretical Computer Science), University of Würzburg, Bavaria
• 1988 - 1995 Vice Dean of the Faculty of Mathematics and Computer Science
• 1990 - 1993 Head of the ``Structure and Hiring Committee'' which built up the Department of Computer Science, Humboldt University at Berlin
• 1995 Visiting researcher in the Department of Mathematics, University of California at Santa Barbara (6 month)
• 1995 - 1997 Dean of the Faculty of Mathematics and Computer Science

Main Research Interests:

• computational complexity
• structure of complexity classes
• complexity aspects in logic and automata theory