Mathematics
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Jakobian's user avatar
Jakobian's user avatar
Jakobian
  • Member for 6 years, 3 months
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About

Hi, welcome to my profile page. Have a good day.

something something. Maths

My mail: [email protected]

Anyone can email me.

Check out pi-base, an useful topology database.

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All Questions Answers
Score Newest
answer
20
Does $\sum _{n=1}^{\infty }\frac{\left|\sin\left(n\right)\right|}{n}$ converge?
Jun 2, 2018
question
14
Prove that $\left(1+2^{-1+b^{\left(\frac{1}{b-1}\right)}}\right)^b < 1+2^{-1+b^{\left(\frac{b}{b-1}\right)}}$ for all $b>2$.
Jul 3, 2020
question
13
Adjunction of pointed maps is a homeomorphism?
Dec 4, 2020
answer
12
Zero distance between a closed set and a bounded closed set which are disjoint in a metric space
Nov 2
answer
11
Why isn't $\int\limits_0^{\pi/2}\tan(2x)\ dx$ equal to zero?
Sep 12, 2018
question
11
Does locally compact, locally connected, connected metrizable space admit a metric with connected balls?
Aug 25
question
10
Recursive formula for number of $n\times m\times p$ cubes of $0$'s and $1$'s with a special property.
Jul 5, 2020
answer
9
An integral which could be split into even and odd functions
Aug 19, 2021
answer
9
$2021^{\text{st}}$ term of a Sequence
Jul 7, 2018
question
9
Mysior plane is not realcompact
Jun 14
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21
Are $\beta \mathbb{Q}$ and $\beta(\beta\mathbb{Q}\setminus\mathbb{Q})$ homeomorphic?
9
Is "All hyperreal fields $C(\mathbb{R})/M$ are isomorphic" independent of ZFC+$\lnot$CH?
7
Are $\beta \mathbb{Q}$ and $\beta(\beta\mathbb{Q}\setminus\mathbb{Q})$ homeomorphic?
5
$T_1$ paratopological group having a dense commutative subgroup is commutative

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