Cohomological dimension of group schemes
In Umemura [9], we calculated the invariants algcd (G), p(G), q(G) for a commutative algebraic group G. We remark that all the results hold for a group scheme which is not necessarily commutative.To determine p(G), I cannot succeed in dropping the hypothesis “quasi-projective” but this assumption is satisfied in the characteristic 0 case.
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