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Mathematics
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Etienne

Apparently, this user prefers to keep an air of mystery about them.

252
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  • Member for 5 years, 10 months
  • 1,796 profile views
  • Last seen Apr 12 at 7:24

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Score 235
Posts 97
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Top Posts (258) All Questions Answers | Votes Newest

17 Sequence of monotone functions converging to a continuous limit, is the convergence uniform? Jun 14 '14
15 Showing that $\sum_{k=0}^{\infty} a^{k} \cos(kx) = \frac{1- a \cos x}{1-2a \cos x + a^{2}}$ without using complex variables Feb 21 '14
12 How to show that this limit is tend to zero? Apr 16 '14
11 if $AB\neq 0$ for any non zero matrix $B$ then $A$ is invertible Sep 28 '13
11 Orthonormal Sets in Hilbert Spaces Mar 3 '14
11 Show that $\left(1+\dfrac{x}{n}\right)^n \to e^x$ as $n \to \infty$ in a normed ring $R$ Jun 11 '13
10 True Or not: Compact iff every continuous function is bounded Jul 22 '13
10 in a topological space only finite subsets are compact sets Oct 7 '13
9 A counter example of best approximation Sep 2 '13
9 ZF and weakly inaccessible cardinals May 14 '15
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