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Feb 18, 2014 at 20:53 vote accept Lan
Feb 18, 2014 at 17:24 answer added abx timeline score: 2
Feb 18, 2014 at 14:30 history edited Ben McKay CC BY-SA 3.0
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Feb 12, 2014 at 15:07 comment added user76758 By the usual tensoring stuff, one can reducing to the case when $(L_2, \nabla_2) = (O_X, {\rm{d}})$ (i.e., the unit object) and $(L_1, \nabla_1) = (M, \nabla_M)$. The relevant calculation is then given early in the book of Mazur and Messing ("Universal extensions and one-dimensional crystalline cohomology").
Feb 12, 2014 at 14:43 history asked Lan CC BY-SA 3.0