Mathematics
Alexei Averchenko's user avatar
Alexei Averchenko's user avatar
Alexei Averchenko's user avatar
Alexei Averchenko
  • Member for 12 years, 10 months
  • Last seen more than a month ago
  • Moscow, Russia
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84
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34
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20
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Top posts
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All Questions Answers
Score Newest
question
110
Why do we define quotient groups for normal subgroups only?
Dec 14, 2010
question
43
How do I find partners for study?
Jan 15, 2012
question
35
Is there a continuous bijection from $\mathbb{R}$ to $\mathbb{R}^2$
Jun 25, 2011
question
30
A ring element with a left inverse but no right inverse?
Oct 8, 2011
answer
21
Exterior Derivative vs. Covariant Derivative vs. Lie Derivative
Oct 9, 2012
answer
20
How can I prove that $xy\leq x^2+y^2$?
Apr 15, 2013
question
19
Is there a way to make tangent bundle a monad?
Nov 20, 2011
answer
17
What is the meaning of the third derivative of a function at a point
Dec 19, 2010
question
17
A commutative ring $A$ is a field iff $A[x]$ is a PID
Apr 10, 2013
answer
16
Division by zero
Nov 17, 2012
Top network posts
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107
How do I boot into single-user mode from GRUB?
30
Evaluating characters by means of description
27
How to prevent a specific program from swapping?
25
Regular languages from category-theoretical point of view
19
Do strong and weak interactions have classical force fields as their limits?

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