The -invariant, the dual -invariant, and families
arXiv:1512.00930 · doi:10.1007/s40316-015-0054-2
Abstract
Given a rank two trianguline family of -modules having a noncrystalline semistable member, we compute the Fontaine--Mazur -invariant of that member in terms of the logarithmic derivative, with respect to the Sen weight, of the value at p of the trianguline parameter. This generalizes prior work, in the case of Galois representations, due to Greenberg--Stevens and Colmez.
arXiv commentaccepted to Annales mathématiques du Québec (special volume in honor of Glenn Stevens's 60th birthday)