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math.AG2007
Some tensor products
Cristiana Bertolin
We define the tensor product of 1-motives with motives of weight 0 and we construct explicitely the 1-motive underlying the quotient M_1 \otimes M_2 / W_{-3}(M_1 \otimes M_2).
math.NT2007★ 1 cited
Multilinear morphisms between 1-motives
Cristiana Bertolin
Let S be an arbitrary scheme. We define biextensions of 1-motives by 1-motives which we see as the geometrical origin of morphisms from the tensor product of two 1-motives to a thi…