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Mathematics
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Analysis
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16
Bisection of a a triangular area
Aug 21, 2019
6
Showing that $1+2020^y$ ($y\in \mathbb{Z}$) is not a perfect square
Mar 1, 2020
6
Let $M\in \text{SO}(3,\mathbb{R})$, prove that $\det(M-I_3)=0$.
Sep 18, 2021
4
Showing that $\exp(rN_t-\lambda t(e^r-1))$ is a Martingale
Jun 27, 2023
4
Understanding Sturm's theorem
Aug 3, 2021
4
Proving that $f(x,y)=(2x^2-y)(y-x^2)$ has positive and negative function values in every neighborhood around $(0,0)$
Aug 23, 2021
3
How many vectors $w\in V$ such that $v_1,...,v_d,w$ are linearly independent?
May 24, 2020
3
Filtration dependence of martingales
Sep 3, 2023
3
What does $\sum_{1\le k\le n}$ mean in this context?
May 30, 2023
3
What's the probability of $HTHT$ occuring before $HHTT$?
May 29, 2023