0 M ay 2 00 5 A presentation for the Chow ring of M 0 , 2 ( P 1 , 2 ) Jonathan Cox
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چکیده
In a previous article ([2]), we computed the Betti numbers and an additive basis for the Chow ring A(M0,2(P , 2)) of the moduli space of degree two stable maps from 2-pointed curves to projective space of arbitrary dimension r. These are the first steps in a program to give presentations for these Chow rings. In the present paper, we will complete this program for the special case r = 1 by showing that
منابع مشابه
2 00 5 A presentation for the Chow ring of M 0 , 2 ( P 1 , 2 ) Jonathan Cox
In a previous article ([2]), we computed the Betti numbers and an additive basis for the Chow ring A(M0,2(P , 2)) of the moduli space of degree two stable maps from 2-pointed curves to projective space of arbitrary dimension r. These are the first steps in a program to give presentations for these Chow rings. In the present paper, we will complete this program for the special case r = 1 by show...
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