The boundary of the Eisenstein symbol by
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چکیده
In the case of an elliptic curve over a number field, this gives a criterion for the ‘integrality’ of Eisenstein symbol elements, and thus generalises a formula found by Bloch and Grayson [1986]. In the case of the universal elliptic curve, we obtain the boundary of the Eisenstein symbol at the cusps. (In characteristic zero an equivalent result was proved in [Beilinson 1986] by an analytic method.)
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تاریخ انتشار 2010