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bzc
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answer
110
$\Bbb Z[i]/(a+bi)\cong \Bbb Z/(a^2+b^2)$ if $(a,b)=1$. Gaussian integer quotient rings.
Feb 23, 2011
answer
23
Can a ring of positive characteristic have infinite number of elements?
Apr 10, 2013
answer
22
"Standard" ways of telling if an irreducible quartic polynomial has Galois group $C_4$?
May 11, 2011
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20
What are some applications of Chebotarev Density Theorem?
Feb 27, 2016
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15
Irreducibility of $x^n-x-1$ over $\mathbb Q$
May 16, 2013
answer
13
Learning Roadmap for Algebraic Topology
Dec 9, 2011
answer
13
Distance traveled by a bouncing ball with exponentially diminishing rebounds
Apr 30, 2011
answer
12
Can you have a ring homomorphism from a ring to itself which isn't the identity?
Sep 9, 2012
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12
Interpreting the Cayley-Hamilton theorem
May 3, 2011
answer
11
Show that $q(n)=11n^2 + 32n$ is a prime number for two integer values of $n$
May 3, 2011

Top network posts

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25
Is it possible to prerender animation in Wolfram Mathematica?
17
Replacing the Rijndael S-Box?
16
Why did NIST remove The Lempel-Ziv Compression test from the Statistical Test Suite?
13
The Flow of Time
7
Encrypted text length in AES