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Results tagged with class-field-theory
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user 450
61
votes
Intuition for Group Cohomology
Here is a completely elementary example which shows that group cohomology is not empty verbiage, but can solve a problem ("parametrization of rational circle") whose statement has nothing to do with c …
- 47.5k
25
votes
A reference for geometric class field theory?
1) Our (slightly pseudonymous!) friend, Brian Conrad, has written this beautiful introduction to geometric class field theory in his characteristically lucid style.
2) Another friend, Péter Tóth, …
- 47.5k