#### Vol. 15, No. 10, 2021

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Precobordism and cobordism

### Toni Annala

Vol. 15 (2021), No. 10, 2571–2646
DOI: 10.2140/ant.2021.15.2571
##### Abstract

The purpose of this article is to compare several versions of bivariant algebraic cobordism constructed previously by the author and others. In particular, we show that a simple construction based on the universal precobordism theory of Annala and Yokura agrees with the more complicated theory of bivariant derived algebraic cobordism constructed earlier by the author, and that both of these theories admit a Grothendieck transformation to operational cobordism constructed by Luis González and Karu over fields of characteristic 0. The proofs are partly based on convenient universal characterizations of several cobordism theories, which should be of independent interest. Using similar techniques, we also strengthen a result of Vezzosi on operational derived $K\phantom{\rule{-0.17em}{0ex}}$-theory. In the appendix, we give a detailed construction of virtual pullbacks in algebraic bordism, filling the gaps in the construction of Lowrey and Schürg.

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