Mathematics
Koenraad van Duin's user avatar
Koenraad van Duin's user avatar
Koenraad van Duin's user avatar
Koenraad van Duin
  • Member for 10 years, 4 months
  • Last seen more than 1 year ago
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103
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wezelezel

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31
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27
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25
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14
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13
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10
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9
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All Questions Answers
Score Newest
question
14
Error in proof: $\mathbb{C} \cong \mathbb{C} \times \mathbb{C}$??
Aug 1, 2013
question
11
Number of elements in the quotient ring $\mathbb{Z}[X]/(X^2-3, 2X+4)$
Jul 30, 2013
question
10
Cosets modulo $(2+i)$ in $\mathbb{Z}[i]$
Jul 29, 2013
question
10
$\mathbb{Q}[X,Y]/(Y^2-X^3)$ is not a UFD
Aug 13, 2013
question
10
Could one make a ring of matrices of uncountable size?
Aug 10, 2014
question
9
$A_n \times \mathbb{Z} /2 \mathbb{Z} \ \ncong \ S_n$ for $n \geq 3$
Aug 3, 2014
question
8
$1^n +2^n + \cdots +(p-1)^n \mod p =$?
Oct 1, 2013
question
7
The structure of the group $(\mathbb{Z}/2^n\mathbb{Z})^*$
Aug 4, 2013
question
7
How many irreducible monic quadratic polynomials are there in $\mathbb{F}_p[X]$?
Nov 7, 2013
question
7
If $\forall x \in R, x^2-x \in Z(G)$, than $R$ is commutative [duplicate]
Aug 23, 2014
Top network posts
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9
rompre, casser, briser, fracasser, et crever
8
La traduction d'un mot néerlandais approchant « comprendre », « apprendre »
8
Le contraire de « sans parler »
8
Comment distinguer « reporter », « repousser » et « différer » ?
7
Les mots « atterrissage », « amerrissage », « alunissage »

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