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Orat
  • Member for 11 years, 10 months
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I am not a native speaker of English. Please edit and improve my writings if you found something wrong or even unnatural. It helps me a lot.

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13
How many homomorphism from $S_3$ to $S_4$?
May 20, 2017
question
12
How Bernoulli differential equation arise naturally?
Mar 28, 2013
answer
12
Determinant of a matrix with $t$ in all off-diagonal entries.
Aug 14, 2014
question
11
The shape of Pringles potato chip [closed]
Dec 24, 2013
answer
10
Any group of order $85$ is cyclic.
Aug 1, 2013
question
9
Wreath product (Rotman, p.173)
Sep 6, 2014
question
8
Why do we care about simple groups rather than indecomposable groups?
Aug 9, 2014
answer
7
A surjective endomorphism (of a Noetherian ring) is injective.
Aug 26, 2015
answer
6
multiplicity of an irreducible representation
Jun 28, 2017
answer
5
How to solve a complex polynomial?
Sep 5, 2013
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19
Semicolon in set-builder notation
15
Drawing cyclic quiver
11
How hot is the water in the pot?
8
When should we repeat a statement of a theorem before proof in a paper?
6
How can I determine the coefficient $k$ in $ \dfrac{dT}{dt} = -k(T - 100 \mathrm{^\circ C}) $?