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revised Maximal Unramified Extension of $\mathbb{F}_p((t))$
deleted 157 characters in body
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Jan
27
comment Abelian torsion group of rational points of an elliptic curve
The standard way of doing this is to compute $E(\mathbb{F}_p)$ for a few primes $p$ of good reduction, and to use the fact that the coprime-to-$p$ torsion of $E(\mathbb{Q})$ injects into $E(\mathbb{F}_p)$
Jan
26
comment Classifying the irreducible representations of $\mathbb{Z}/p\mathbb{Z}\rtimes \mathbb{Z}/n \mathbb{Z}$
You need to do what I labelled as Exercise 2.
Jan
25
comment Classifying the irreducible representations of $\mathbb{Z}/p\mathbb{Z}\rtimes \mathbb{Z}/n \mathbb{Z}$
@SvenWirsing: In the specific situation of the OP, they are 1- and $n$-dimensional. In the general situation of my Edit, they are $($dim $\rho\cdot \#$orbit$_H(\chi))$-dimensional. That just follows from the fact that under induction, the dimension of a representation grows by the index of the subgroup that you are inducing from.
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comment Primes of the form $p=a^2-2b^2$.
@KCd: thanks Keith, fixed it.
Nov
28
revised Primes of the form $p=a^2-2b^2$.
Corrected, to treat the prime 2 separately
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Sep
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answered Sum of degrees of irreducible complex characters for certain groups
Sep
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comment What are major algebraic number theory attempts, results and progressions toward Goldbach's Conjecture?
See this MO question: mathoverflow.net/questions/43434/…
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