Bivariant Versions of Algebraic Cobordism
Abstract: We define four distinct oriented bivariant theories associated with algebraic cobordism in its two versions (the axiomatic $\Omega$ and the geometric $\omega$), when applied to quasi-projective varieties over a field $k$. Specifically, we obtain contravariant analogues of the algebraic bordism group $\Omega_(X)$ and the double point bordism group $\omega_(X)$, for $X$ a quasi-projective variety, and covariant analogues of the algebraic cobordism ring $\Omega*(X)$ and the double point cobordism ring $\omega*(X)$, for $X$ a smooth variety. When the ground field has characteristic zero, we use the universal properties of algebraic cobordism in order to obtain correspondences between these oriented bivariant theories.
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