Show that normable eigenstates are not degenerated in 1D
91756
Degeneracy in one dimension
128932
Is my expansion of the state $| x \rangle$ correct?
103460
Normal but not hermitian nor unitary
25874
Showing that a certain map is not flat by explicit counterexample
16692
a representation condition of Hilbert space
157297
Should the eigenkets be weighted in $|P\rangle = \sum\limits_{r}|\xi^r\rangle$?
72046
Prove all eigenvalues of $A^*A$ are non-negative
142307
Counting invertible $0$-$1$ matrices that remain invertible under negating the diagonal
22297
Normal operator $\Rightarrow$ S invariant implies $S^\perp$ invariant
75536
every eigenvalue of $T$ has only one corresponding eigenvector up to a scalar multiplication
13964
Manifold of Density Matrices
80751
diagonalisability of matrix few properties
91545
A stronger version of discrete "Liouville's theorem"
51678
Proof that the largest eigenvalue of a stochastic matrix is $1$
47012
When a 0-1-matrix with exactly two 1’s on each column and on each row is non-degenerated? [1]
134981
Eigenvalues of $L^\dagger L$ are positive
128453
If $A$ has two eigenvalues $\lambda _1, \lambda_2$ and $\dim (E_{\lambda_1})=n-1$, then $A$ is diagonalizable