Mathematics
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Marcos
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All Questions Answers
Score Newest
answer
7
For what $k$, are the roots of $p(x) = 4x^2 -2x +k=0$ in $(-1,1)$?
May 8
question
6
$(\int_{\mathbb{R}}|\int_\mathbb{R}{\mathcal{F}^{-1}}(\chi_{(t,\infty)}\hat{f})(\xi)m'(t)dt|^pd\xi)^{1/p}\leq C_p\|m'\|_{L^1}\|f\|_{L^p}$
Mar 21, 2022
question
6
Proof of a weighted norm inequality.
Mar 19, 2022
question
6
Prove that $\lim_{n\to\infty}\|f_n-f\|_p=\lim_{n\to\infty}\|g_n-g\|_p=0$
Dec 21, 2021
question
5
Let $G$ be a finite group, $H$, $K$ be normal subgroups and $P$ a sylow p-subgroup . Then $PH \cap PK=P\left( H\cap K\right)$.
Aug 27, 2021
answer
5
If you have $2n$ people how many different ways can you pair them up?
Sep 1, 2021
question
5
There are uncountably many subgroups of $\text{Gal}( \bar{\mathbb{Q}}/\mathbb{Q})$ of index $2$.
Apr 30, 2022
question
5
Find the presentation for the kernel of a map from $G=\langle a,b,c\mid aba=bab,bc=cb\rangle$ to $\mathbb{Z}$.
Apr 17
question
5
Group of an Elliptic curve.
Dec 3, 2021
question
5
Number of points of an elliptic curve
Dec 4, 2021
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10
Homotopy type of the geometric realization of a poset
7
Geometric realization of a poset
5
Quotient of a $F_n$ group which is $F_n$

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