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Mr Mathster
  • Member for 10 years, 11 months
  • Last seen more than 6 years ago
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Hello. I'm the college student majoring in mathematics, and I'm interested in visiting this site and learn more from mathematicians and any users with math background.

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How does someone with C's and F's in graduate-level courses and A's and B's in undergraduate courses get admitted to a PhD program?
Jan 8, 2014
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19
What is the difference between the gradient and the directional derivative?
12
Prove that if $V$ and $W$ are affine varieties, then $V \times W$ is an affine variety.
10
Compute $\sum\limits_{n = 1}^{\infty} \frac{1}{n^4}$.
9
Is there a relation that is irreflexive, anti-symmetric and not transitive?
7
Find $\mathrm{Aut}(G)$, $\mathrm{Inn}(G)$ and $\mathrm{Aut}(G)/\mathrm{Inn}(G)$ for $G = D_4$