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arXiv 0709.3436math.AT
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高同伦霍普夫代数的发现:十年回顾

Higher Homotopy Hopf Algebras Found: A Ten Year Retrospective

Ronald N. Umble

摘要:

寻找更高的同伦霍普夫代数(今天被称为A_ \infty -双代数)开始于1996年在瓦萨学院举行的一次会议上纪念吉姆Stasheff在今年他60岁生日。在一个题为“在搜索高同伦霍普夫代数“的演讲中,我指出,DG霍普夫代数可以被认为是一些(未知的)具有平凡高阶结构的高同伦结构,并使用Gerstenhaber和Schack的双代数变形理论的分级版本进行变形。回顾过去,Gerstenhaber和Schack的微分定义变形上同调中编码的双(余)模结构检测了一些(但不是全部)A_infty-双代数结构关系。然而,这激发了S. 2005年的Saneblidze和我自己。

英文摘要:

The search for higher homotopy Hopf algebras (known today as A_\infty-bialgebras) began in 1996 during a conference at Vassar College honoring Jim Stasheff in the year of his 60th birthday. In a talk entitled "In Search of Higher Homotopy Hopf Algebras", I indicated that a DG Hopf algebra could be thought of as some (unknown) higher homotopy structure with trivial higher order structure and deformed using a graded version of Gerstenhaber and Schack's bialgebra deformation theory. In retrospect, the bi(co)module structure encoded in Gerstenhaber and Schack's differential defining deformation cohomology detects some (but not all) of the A_infty-bialgebra structure relations. Nevertheless, this motivated the discovery of A_infty-bialgebras by S. Saneblidze and myself in 2005.

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