Böckle–Juschka irreducible-component conjecture for framed deformation spaces
Böckle–Juschka irreducible-component conjecture for framed deformation spaces
Let be a prime, let be a positive integer, let be a finite extension of , and let be a continuous representation. Let be the rigid generic fiber of the framed deformation ring of , and let
be the map induced by sending a deformation to its determinant. Böckle–Juschka's conjecture. The map induces a bijection between the irreducible components of the two spaces, and the irreducible and connected components of coincide. This conjecture concerns the geometry of unrestricted framed local deformation spaces; the source reports that it is resolved in several special cases, including , certain two-dimensional cases, and cases with a vanishing adjoint cohomology group, while the general statement is left open.
Sources & referencesView supporting material
Primary source
Ashwin Iyengar, “Deformation theory of the trivial mod p Galois representation for GL_n”, arXiv:1904.05996 (2021).
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