We define
-BT
groups as well-controlled ind-Barsotti–Tate groups under the action of the Iwasawa
algebra and construct a prototypical example of such groups out of modular
Jacobians. We then discuss the relation of these groups to Weil numbers of weight
and to the nonvanishing problem of the adjoint
-invariant.
To my dear friend Jon Rogawski, who
created the UCLA number theory group.
Keywords
Hecke algebra, Galois representation, Galois deformation,
Barsotti–Tate group