Mathematics
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Toni Mhax
  • Member for 5 years
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All Questions Answers
Score Newest
answer
5
A symmetric, diagonally dominant matrix A with real positive diagonal entries is positive definite
Nov 15, 2019
answer
4
On the imaginary and real part of the eigenvalues of a real normal matrix.
Sep 15, 2020
question
4
Sort of positive matrix
Jul 14, 2019
answer
4
If $x,y,z>0$ and $x+y+z=1$ then $\frac{xyz}{(1-x)(1-y)(1-z)}\le\frac{1}{8}$
Nov 1, 2018
answer
3
Product of positive definite and negative definite commuting matrices
Jul 16, 2019
answer
3
Prove that all the eigenvalues of $A$ are real.(Gershgorin 's Theorem)
Dec 2, 2019
answer
3
If $a^2+b^2+c^2 =3$, find the minimum value of $a+b+c$
Mar 17, 2020
answer
3
Prove $a^2 + b^2 + c^2 + ab + bc +ca \ge 6$ given $a+b+c = 3$ for $a,b,c$ non-negative real.
Jul 27, 2021
answer
2
Showing a matrix with all ones except on the diagonal is invertible
May 7, 2021
answer
2
$\omega(A_{\beta})\geq \frac{1}{2}$ for all $\beta$ and $\|A_{\beta_0}\|<1$ for some $\beta_0$
Mar 17, 2020
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6
Monotonicity of eigenvalues

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