不动点不变量的乘性
The multiplicativity of fixed point invariants
摘要:
证明了两个关于纤维化不动点不变量的一般分解定理:一个是关于莱夫谢茨数的,另一个是关于Reidemeister迹的.这些定理暗示了纤维化的Lefschetz数和Nielsen数的乘法性结果。此外,这些定理的证明本质上是形式的,发生在双范畴痕迹的抽象背景下。这使得对其他上下文的概括变得简单明了。
英文摘要:
We prove two general factorization theorems for fixed-point invariants of fibrations: one for the Lefschetz number and one for the Reidemeister trace. These theorems imply the familiar multiplicativity results for the Lefschetz and Nielsen numbers of a fibration. Moreover, the proofs of these theorems are essentially formal, taking place in the abstract context of bicategorical traces. This makes generalizations to other contexts straightforward.
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