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Mathematics
Korf's user avatar
Korf's user avatar
Korf's user avatar
Korf
  • Member for 7 years, 3 months
  • Last seen this week
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All Questions Answers
Score Newest
answer
6
What is the relation between the gaussian integral and the volume of the n-ball?
Mar 4, 2016
question
3
How to prove that $\lVert B^{-1} A \rVert$ can be computed as $\sup_{x\in H} \frac {(Ax, x)}{(Bx, x)}$ in infinite dimension
Aug 3, 2021
answer
3
Determinant of $(A+iB)(A-iB)$
Feb 29, 2016
answer
3
Why is $\delta\mathbf{u}\cdot \mathrm{div}(\mathbf{\sigma}) = -\mathrm{grad}(\delta\mathbf{u}) \mathbf{:} \mathbf{\sigma}$?
Sep 8, 2021
question
2
Spectrum of a matrix operator on $L^2$ product space
Oct 14, 2020
answer
2
prove or disprove if $\|AB - I\|<1$ then $\|BA - I\|<1$
Mar 5, 2016
answer
2
Existence of closed solution of a certain type of Poisson equations
Aug 13, 2018
answer
2
Matrix exponential of an upper triangular matrix
Sep 10, 2021
answer
1
I get a wrong determinant - why?
Feb 26, 2016
answer
1
Trying to explain to first year students that $\det$Diag$(A,B)$ = $\det A \cdot \det B$
Feb 28, 2016
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5
Difference in performance of preconditioned GMRES and MINRES

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