Mathematics
Lee's user avatar
Lee's user avatar
Lee's user avatar
Lee
  • Member for 8 years, 1 month
  • Last seen more than a week ago
  • Hong Kong
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1,890
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answers
125
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About

Love math, but not sure if math loves me

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Score
85
Posts
51
Posts %
8
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19
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11
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6
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44
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27
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6
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4
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5
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All Questions Answers
Score Newest
question
13
Express $\mathrm{Tr}(X)$ in terms of $A$, given that $X=A^TX(I+X)^{-1}A$
May 1, 2021
question
6
Find all $x\in\mathbb{C^n}$ such that $||Ax||_2=1$ and $||x||_2=1$
May 18, 2021
question
5
Finding the least point of numerical range which lies on real axis
Sep 1, 2021
question
5
Ellipse bounded between two lines and a circle
Oct 1, 2022
question
5
Minimize $x^*(A+A^*)x$ such that $x^*A^*Ax=1$ and $x^*x=1$
Jun 9, 2021
question
5
Minimize $\mathrm{tr}(R^{-1}B^TXB)$ over $R$ subject to $X=A^TXA-A^TXB(R+B^TXB)^{-1}B^TXA$
Jul 17, 2022
question
5
Prove that $\mathrm{Tr}(B^\mathsf{T}Y^{-1}B)$ is independent of $B$
Apr 25, 2021
question
5
Find minimum number of figures needed , so that no additional figure can be added?
Oct 16, 2020
question
5
Express $\operatorname{trace}(B'XB)$ in terms of $A$ and $B$
Jun 9, 2020
question
4
Intuition behind the Law of large numbers
Aug 31, 2022

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