Mathematics
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Dragonite
  • Member for 6 years, 10 months
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Math enthusiast.

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All Questions Answers
Score Newest
answer
23
1 and 2 norm inequality
May 23, 2017
question
11
Show that Hill's Equation $u'' + a(t)u=0$ if $a(t)<0$ for all $t$ then $u\to\infty$ as $t\to\infty$
Feb 20, 2018
question
10
Schur's Theorem: In $\ell^1$ weak convergence of $x_n$ is the same as convergence in the norm
Mar 29, 2017
answer
6
Prove $f(x) =\ \frac{x^5}{5!} +\frac{x^4}{4!} +\frac{x^3}{3!}+\frac{x^2}{2!} +x+1$ has only one root.
Apr 29, 2017
question
6
Let $\lim\limits_{n\to\infty}a_{n+1}-a_{n}=\alpha$. Show that $\lim\limits_{n\to\infty} \frac{a_n}{n}=\alpha$. [duplicate]
Sep 4, 2018
answer
5
How form a linear mapping $f:\mathbb{R}^{4} \rightarrow \mathbb{R}^{3}$ to a matrix correctly?(solved)
Mar 22, 2017
question
5
$X$ and $Y$ Banach Spaces, $T \in B(X,Y)$, $Y = \operatorname{im}T \oplus M$, for $M \subseteq Y$, then $\operatorname{im}T$ is closed in $Y$
Apr 29, 2017
question
4
Proving the infinite direct sum of orthogonal closed subspaces of a hilbert space is a closed linear subspace
Apr 10, 2018
question
4
Showing that $\Gamma(x)\Gamma(y) = \Gamma(x+y)\beta(x,y)$ via change of variable [duplicate]
Jun 3, 2018
question
4
In the space of bounded sequences which converge to $0$ there is one such sequence with a minimum distance to $(1,1,1,...)$
May 1, 2017

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