代数（余）同调论中的对偶与乘积
Duality and products in algebraic (co)homology theories
摘要：
代数（共）同调论中的积和对偶的起源和相互作用归因于相关泛包络代数上的$\times_A$ -霍普夫代数结构。这提供了一个统一的治疗结果的例子范登伯格约Hochschild（co）同源性和Huebschmann约李莱因哈特（co）同源性。
英文摘要：
The origin and interplay of products and dualities in algebraic (co)homology theories is ascribed to a $\times_A$-Hopf algebra structure on the relevant universal enveloping algebra. This provides a unified treatment for example of results by Van den Bergh about Hochschild (co)homology and by Huebschmann about Lie-Rinehart (co)homology.
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