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AbstractAbstract
[en] The methods for computing Feynman diagrams have become more and more sophisticated over the years. Lately much progress has been made to express them in terms of Harmonic Sums. In this talk I will show some techniques by which these sums can be manipulated. This is applied to two interesting problems: one is how to express Multiple Zeta Values into a minimal set and the other concerns the solving difference equations. These problems will be placed in their physics context. (author)
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Hueffel, H. (ed.) (Department of Theoretical Physics, University of Vienna (Austria)). Funding organisation: The Austrian Federal Ministry for Science and Research (Austria); The High Energy Physics Institute of the Austrian Academy of Sciences (Austria); The Erwin Schroedinger International Institute of Mathematical Physics (Austria); Faculty of Physics, University of Vienna (Austria); Vienna Convention Bureau (Austria); [100 p.]; 2008; [10 p.]; 5. Vienna central european seminar on particle physics and quantum field theory. Highlights in computational quantum field theory; Vienna (Austria); 28-30 Nov 2008; Available as powerpoint presentation. Available in electronic form from: http://www.univie.ac.at/vienna.seminar/2008/talks/03_vermaseren.pdf
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