Ramanujan-like formulas for 1/π2 a la Guillera and Zudilin and Calabi-Yau differential equations

Using the PSLQ-algorithm J.Guillera found some formulas for 1/π2. He proved three of them using WZ-pairs. Then W. Zudilin showed how to produce formulas for 1/π2 by squaring formulas for 1/π. The success of this depends on facts related to Calabi-Yau differential equations of string theory. Here som...

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Bibliographic Details
Main Author: Gert Almkvist
Format: Article
Language:English
Published: Institute of Mathematics and Computer Science of the Academy of Sciences of Moldova 2009-06-01
Series:Computer Science Journal of Moldova
Online Access:http://www.math.md/files/csjm/v17-n1/v17-n1-(pp-100-120).pdf

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