Mathematics
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hugo d
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All Questions Answers
Score Newest
answer
2
The $2$-norm of an outer product
Sep 3, 2019
answer
2
Prove this formula $\frac{1-r\cos(x)}{1-2r\cos(x)+r^2}= 1+\sum_{n=1}^{+\infty}r^{n}\cos\left(nx\right)$
Jan 27, 2021
answer
2
Fenchel conjugate of a norm
Oct 20, 2021
answer
1
Sequence and series : $a_{n+1}=\frac{na_{n}+1}{a_{n}}$ , $a_0=1$
Jul 13, 2019
answer
1
Let$ ({F_j})_{j=1}^{\infty}$ be a sequence of bounded closed sets in $\mathbb{R}^d$ with the following properties..
Oct 4, 2019
answer
1
Extending the Spectral Theorem of Unbounded Self-Adjoint Operators on Infinite-Dimensional Hilbert Spaces
Jan 26, 2021
answer
1
The bubble function
Aug 5, 2021
answer
0
If a sequence $(x_n)$ in $U$ converges to some $x\notin U$, what can we say about the sequence $(f(x_n))$?
Oct 4, 2019
answer
0
m $\in \Bbb N$ so that $\lim_{m+n \to \infty} x_n = a$. Prove that $\lim_{n \to \infty} x_{n}=a$
Oct 4, 2019
answer
0
Is the limit of this sequence of function $1$ or $0$?
Oct 21, 2019

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