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Castelnuovo curves and unobstructed deformations

✍ Scribed by Allen Tannenbaum


Publisher
Springer-Verlag
Year
1980
Tongue
French
Weight
355 KB
Volume
174
Category
Article
ISSN
0025-5874

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For a given odd two-dimensional representation \Γ„ over F p of the absolute Galois group G E of a totally real field E which is unramified outside a finite set of places S, Mazur defined a universal deformation ring R G S (\Γ„ ). By obstruction theory, the group 2 S (E, ad \Γ„ ) measures to what extent