Посилання:Homological Algebra and Divergent Series / V. Gorbounov, V. Schechtman // Symmetry, Integrability and Geometry: Methods and Applications. — 2009. — Т. 5. — Бібліогр.: 36 назв. — англ.
Підтримка:This paper is a contribution to the Special Issue on Kac–Moody Algebras and Applications. We thank Fedor Malikov who read thoroughly the first part and helped to correct many signs; some calculations made with him have been the starting point of the second part. We are grateful to Vladimir Hinich for very interesting discussions about Golod rings and Koszul algebras; to Oleg Ogievetsky for an important remark; to Alexander Polishchuk for very useful consultations; to Hossein Abbaspour and Thomas Tradler who taught us about the string topology, and especially to Victor Ginzburg for his numerous explanations, questions and bibliographical comments. This article was finished during our stay at Max-Planck-Institut f¨ur Mathematik and the Hausdorf f Institut f¨ur Mathematik in June and July 2008; we are grateful to both institutions for the excellent working atmosphere.