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Mathematics
S.B.
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Apparently, this user prefers to keep an air of mystery about them.

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9 Is the variance concave? Oct 8 '12
9 Math Algebra Question with Square Roots Jun 6 '14
8 Minimize Frobenius norm with unitary constraint Feb 26 '14
7 Finding maximum of $ad-bc$ on $S^3$ Aug 15 '13
7 probability of the dot product between gaussian unit vectors Aug 17 '13
7 Closed forms for various expectations involving the standard normal CDF Jul 16 '12
5 principal "pseudo eigenvector" of a real symmetric positive-semidefinite matrix Oct 5 '12
5 How to calculate the coordinates of a triangle's orthocentre? Aug 28 '13
5 Show that if $\int_0^1f(x)dx=a$, then $\int_0^1\sqrt{f(x)}dx\ge a^{2/3}$ Mar 14 '14
5 IMO 2014 problem 3, first day Jul 11 '14
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