Mathematics
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Julien
  • Member for 10 years, 5 months
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I like maths.

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All Questions Answers
Score Newest
answer
69
Prove $|e^{i\theta} -1| \leq |\theta|$
Nov 28, 2013
answer
49
How to prove every closed interval in R is compact?
Apr 21, 2013
answer
49
Nice examples of groups which are not obviously groups
Apr 15, 2013
answer
47
Change of basis matrix to convert standard basis to another basis
Mar 25, 2013
answer
42
For what $n$ is $U_n$ cyclic?
Feb 26, 2013
answer
41
If $d(x,y)$ is a metric, then $\frac{d(x,y)}{1 + d(x,y)}$ is also a metric
Feb 20, 2013
answer
40
How to prove $\det \left(e^A\right) = e^{\operatorname{tr}(A)}$?
Mar 6, 2013
answer
31
Can the matrices $A$ and $I+A$ have the same determinant?
Feb 13, 2013
answer
30
Is the inverse of a symmetric matrix also symmetric?
Mar 8, 2013
answer
28
Direct proof that nilpotent matrix has zero trace
Dec 24, 2013
Top Meta posts
4
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44
On the loss of some users and their PSQs
12
Congrats to Ross Millikan AND Davide Giraudo
9
Extreme slowness when posting an answer
8
Solve/compute/evaluate: when should we use these verbs?
4
Why does the accept rate no longer appear?
Top network posts
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On complemented von Neumann algebras
9
Stable rank one and corners of $C^\ast$-algebras
8
Gelfand representation and functional calculus applications beyond Functional Analysis
7
Structure theorem for finite dimensional $C^*$-algebras and their representations
6
Specific alignment within \begin{align} environment

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