A mod-` vanishing theorem of Beilinson-Soulé type
نویسنده
چکیده
Let L be a field containing an algebraically closed field and X an equidimensional quasiprojective scheme over L. We prove that CH i(X, n;Z/`) = 0 when n > 2i ≥ 0 and ` 6= 0; this was known previously when i ≥ dimX and L is itself algebraically closed. This “mod-`” version of the Beilinson-Soulé conjecture implies the equivalence of the rational and integral versions of the conjecture for varieties over fields of this type and can be used to prove the vanishing of the (integral) groups CH i(X, n) (for n > 2i) in certain cases.
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