再论导子的K理论
K-theory of derivators revisited
摘要:
我们定义了一个$K$ -理论指出,右导子,并表明,它同意与Waldhausen $K$ -理论的情况下,导子来自一个好的Waldhausen范畴。这个$K$ -理论在导子的一般等价下不是不变的,而只是在一个更强的等价概念下,这个等价概念是通过考虑导子范畴的单纯充实来定义的。我们表明,导子$K$ -理论,最初定义的,是最好的近似Waldhausen $K$ -理论的函子是不变的导子下的等价。
英文摘要:
We define a $K$-theory for pointed right derivators and show that it agrees with Waldhausen $K$-theory in the case where the derivator arises from a good Waldhausen category. This $K$-theory is not invariant under general equivalences of derivators, but only under a stronger notion of equivalence that is defined by considering a simplicial enrichment of the category of derivators. We show that derivator $K$-theory, as originally defined, is the best approximation to Waldhausen $K$-theory by a functor that is invariant under equivalences of derivators.
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