Mathematics
Pierre-Guy Plamondon's user avatar
Pierre-Guy Plamondon's user avatar
Pierre-Guy Plamondon's user avatar
Pierre-Guy Plamondon
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All Questions Answers
Score Newest
answer
64
Non-associative commutative binary operation
Jan 22, 2016
answer
24
$f(x) $ be the minimal polynomial of $a$ (algebraic element) over $\mathbb Q$ , let $b=f'(a) \in \mathbb Q(a)$ , then is $\mathbb Q(a)=\mathbb Q(b)$?
Aug 30, 2016
answer
22
Coordinate-Free Definition of Trace.
Jul 22, 2015
answer
19
Proving that $\det(A) \ne 0$ if $a_{i,i} = 0$ and $a_{i,j} = \pm 1$ for $i \neq j$
Dec 20, 2016
question
14
Number of ways to dissect a square into triangles of equal area
May 8, 2015
question
12
If $R[x]$ and $R[[x]]$ are isomorphic, then are they isomorphic to $R$ as well? [duplicate]
Jan 5, 2016
answer
12
In what categories does the "classical" notion of function make sense?
Dec 28, 2018
answer
11
Principal ideal rings that are not integral domains
Jul 8, 2015
answer
10
The colimit of all finite-dimensional vector spaces
Apr 22, 2015
answer
10
Does there exist $\alpha \in \mathbb{R}$ and a field $F \subset \mathbb{R} $ such that $F(\alpha)=\mathbb{R}$?
Oct 4, 2016
Top network posts
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8
Abelian groups injective over their endomorphism
6
Example of a ring satisfying this variant definition of "symmetric" on nilpotent elements
6
If a subset and its complement are path-connected, an neighborhood of the subset is path-connected
6
Questions on permanents of quiver algebras
5
Powers of singular matrices and pairs of identical rows

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