Every real matrix with non-negative entries has a non negative eigenvalue
110271
Given a matrix with non-negative real entries, can you algebraically prove that it has a non-negative eigenvalue?
51678
Proof that the largest eigenvalue of a stochastic matrix is $1$
19649
A question about the proof of "a symmetric matrix has real eigenvalues".
149629
The Eigenvalues of a block matrix
149916
Minimum eigenvalue and singular value of a square matrix
153372
Characterization of positive definite matrix with principal minors
86721
Find the eigenvalues of a matrix with ones in the diagonal, and all the other elements equal
1750
Fredholm alternative theorem for matrices
22222
Properties of zero-diagonal symmetric matrices
146316
what is no. of positive eigen value of symmetric matrix A with some given relationship
123424
Must eigenvector be real?
114208
Does non-symmetric positive definite matrix have positive eigenvalues?
127799
Eigenvalues of symmetric matrices are real without (!) complex numbers
59402
Comparing Eigenvalues of Positive Semidefinite Matrices
58339
The diagonalizable matrices are not dense in the square real matrices
81176
A normal matrix with real eigenvalues is Hermitian
126337
Eigenvalues in orthogonal matrices