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Article overview
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Optimal quotients and surjections of Mordell-Weil groups | Everett W. Howe
; | Date: |
26 May 2015 | Abstract: | Answering a question of Ed Schaefer, we show that if J is the Jacobian of a
curve C over a number field, if s is an automorphism of J coming from an
automorphism of C, and if u lies in the subring Z[s] of End J and has connected
kernel, then it is not necessarily the case that u gives a surjective map from
the Mordell-Weil group of J to the Mordell-Weil group of its image. | Source: | arXiv, 1505.7141 | Services: | Forum | Review | PDF | Favorites |
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