On a conjecture of Conrad, Diamond, and Taylor
Savitt, David
Duke Math. J., Tome 126 (2005) no. 1, p. 141-197 / Harvested from Project Euclid
Text on Project Euclid
PDF
Alt PDF
We prove a conjecture of Conrad, Diamond, and Taylor on the size of certain deformation rings parametrizing potentially Barsotti-Tate Galois representations. To achieve this, we extend results of Breuil and Mézard (classifying Galois lattices in semistable representations in terms of "strongly divisible modules") to the potentially crystalline case in Hodge-Tate weights (0, 1). We then use these strongly divisible modules to compute the desired deformation rings. As a corollary, we obtain new results on the modularity of potentially Barsotti-Tate representations.
Publié le : 2005-05-15
Classification:  11F80,  14L15 
@article{1116361230,
     author = {Savitt, David},
     title = {On a conjecture of Conrad, Diamond, and Taylor},
     journal = {Duke Math. J.},
     volume = {126},
     number = {1},
     year = {2005},
     pages = { 141-197},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1116361230}
}

Savitt, David. On a conjecture of Conrad, Diamond, and Taylor. Duke Math. J., Tome 126 (2005) no. 1, pp.  141-197. http://gdmltest.u-ga.fr/item/1116361230/