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Draft:Operational Chow ring

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The basic question, still open as of, is whether there is a cycle map:

A ( X ) H ( X , Z {\displaystyle A^{*}(X)\to \operatorname {H} ^{*}(X,\mathbb {Z} }

(If X is smooth, such a map exists since A ( X ) {\displaystyle A^{*}(X)} is the usual Chow ring of X.)

References

  • W. Fulton, R. MacPherson, F. Sottile, and B. Sturmfels, ‘Intersection theory on spherical varieties’, J. Alg. Geom. 4 (1995), 181–193.
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