Mathematics
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Julien
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I like maths.

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All Questions Answers
Score Newest
answer
68
Prove $|e^{i\theta} -1| \leq |\theta|$
Nov 28, 2013
answer
49
Nice examples of groups which are not obviously groups
Apr 15, 2013
answer
48
How to prove every closed interval in R is compact?
Apr 21, 2013
answer
46
Change of basis matrix to convert standard basis to another basis
Mar 25, 2013
answer
40
If $d(x,y)$ is a metric, then $\frac{d(x,y)}{1 + d(x,y)}$ is also a metric
Feb 20, 2013
answer
38
For what $n$ is $U_n$ cyclic?
Feb 26, 2013
answer
34
How to prove $\det(e^A) = e^{\operatorname{tr}(A)}$?
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
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On the loss of some users and their PSQs
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Congrats to Ross Millikan AND Davide Giraudo
9
Extreme slowness when posting an answer
7
Solve/compute/evaluate: when should we use these verbs?
3
Why does the accept rate no longer appear?
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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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