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Parallel computation of Feynman diagrams with DIANA

✍ Scribed by M Tentyukov; J Fleischer


Book ID
118435297
Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
271 KB
Volume
160
Category
Article
ISSN
0010-4655

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By symbolic summation methods based on difference fields we present a general strategy that transforms definite multi-sums, e.g., in terms of hypergeometric terms and harmonic sums, to indefinite nested sums and products. We succeeded in this task with all our concrete calculations of 2-loop and 3-l