Mathematics
Nikita's user avatar
Nikita's user avatar
Nikita's user avatar
Nikita
  • Member for 5 years, 9 months
  • Last seen more than 2 years ago
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"An expert is someone who knows some of the worst mistakes that can be made in his subject, and how to avoid them." Werner Heisenberg

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All Questions Answers
Score Newest
question
8
How can we find $\lim_{n \rightarrow +\infty}\int_{1}^{n} \frac{\cos(nx)(x-1)}{\sqrt{\ln^3(x)(1+x^4)}}dx $?
Dec 6, 2017
question
8
The condition between $\chi(1)$ and $[G:H]$ which gives us a normal subgroup.
Jan 17, 2018
question
7
An inner product which does not produce a Hilbert norm.
Dec 5, 2017
question
7
From a lower triangular matrix to its quiver representation
Apr 23, 2018
question
7
Finite dimensional central division $\mathbb K$-algebra as a subalgebra of a matrix $\mathbb K$-algebra
Apr 6, 2018
question
6
How to find $\int \frac{e^{-x^2}}{x^2 + 1} dx$?
Dec 8, 2017
question
5
Fourier transform of $\frac{1}{\sqrt{1 + x^2}}$
Dec 4, 2017
question
5
Show that every normal subgroup can be written as an intersection of $\ker \chi$'s for $\chi \in \operatorname{Irr}(G).$
Jan 7, 2018
answer
5
How to calculate sum of series (Geometric?): $\sum_{n=0}^{\infty}\frac 12 \left(\frac14\right)^{n-1}$
Dec 7, 2017
question
4
Spectrum of the operator $(Ax)(t) = x(0) + t x(1)$ for $A: C[0,1] \to C[0,1]$.
Dec 9, 2017

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