Peyman mohseni kiasari

### Questions (23)

 3 What is $\max(|z|)$ if $\Bigl|\frac{6z - i}{2 + 3iz}\Bigr|\leq1$ 3 If $A=A^2$ is then $A^T A = A$? 2 If $A = A^*$ then $\lambda_{min} \leq\frac{\langle Av,v \rangle}{\langle v,v \rangle}\leq\lambda_{max}$ 2 What are the eigenvalues of the given matrix $M$ 1 If $AB=-BA$ then do $A$ and $B$ share a common eigenvector?

### Reputation (151)

 +5 If $AB=-BA$ then do $A$ and $B$ share a common eigenvector? +5 + (plus) notation in regular expression +5 Coefficient of $x^3$ if $y''-y'\sin x+ xy = 0$ and $y(0),y'(0) = 0,1$ +5 What is $\max(|z|)$ if $\Bigl|\frac{6z - i}{2 + 3iz}\Bigr|\leq1$

 1 if $AA^*=BB^*$ what are the relations between A and B

### Tags (37)

 1 linear-algebra × 11 0 random-variables × 2 1 operator-theory × 6 0 integration × 2 1 adjoint-operators × 3 0 expected-value × 2 0 matrices × 7 0 complex-numbers × 2 0 eigenvalues-eigenvectors × 3 0 inequality × 2

### Accounts (13)

 Mathematics 151 rep 11 Meta Stack Exchange 100 rep 5 Stack Overflow 51 rep 10 Ask Ubuntu 27 rep 7 Super User 25 rep 17