An Infinitesimal Noether-lefschetz Theorem for Chow Groups
نویسنده
چکیده
Let X be a smooth, complex projective variety, and Y be a very general, sufficiently ample hypersurface in X. A conjecture of M. V. Nori states that the natural restriction map CH(X)Q → CH(Y )Q is an isomorphism for all p < dimY and an injection for p = dimY . This is the generalized Noether-Lefschetz conjecture. We prove an infinitesimal version of this conjecture.
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تاریخ انتشار 2015