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The most striking aspect of his mathematical practice is his extraordinary skill at calculations. In fact, he tried to solve mathematical problems to a large extent by means of a calculative, algebraic approach.

- My publication list in Bibtex format.
- My publication list in pdf format.
- Here are my scientific articles (-2010) .
- Here are my scientific articles (2011-) . A new item will be posted
- Drafts .
- Other writings .

- Analysis of Algorithms
- Concrete Mathematics
- Combinatorics
- Tree enumeration
- Number Theory

I am a member of the editorial board of the following journals:

- Theoretical Computer Science
- Journal of Algorithms -2003
- Transactions on Algorithms 2004-2007
- Discrete Mathematics and Theoretical Computer Science (1997-2012)
- Quaestiones Mathematicae (2004-)
- International Journal of Intelligent Computing and Cybernetics (2007-)
- The Open Mathematics Journal (2007-)
- The Open Applied Mathematics Journal (2007-)
- Universal Computer Science (2008-)
- Applicable Analysis and Discrete Mathematics (2009-2012)
- The Pioneer Journal of Advances in Applied Mathematics (2010-)

- I won a prize from the Austrian Mathematical Society in 1985
- A-rating from the NRF South Africa (1999)
- Gold medal from the South African Mathematical Society (2001)
- Vice-chancellor's research award (November 2001)
- South African Mathematical Society award for research distinction (2003)
- Hononary Professor Technical University of Graz (2005)

Department of Mathematics

University of Stellenbosch

7602 Stellenbosch

Tel: +27 - (0)21 - 808 3273

email: hproding at sun dot ac dot za

South Africa