zero eigenvalues and corresponding eigenvectors of a square and a rectangular matrice

*To*: mathgroup at smc.vnet.net*Subject*: [mg52401] zero eigenvalues and corresponding eigenvectors of a square and a rectangular matrice*From*: ucturhal at anadolu.edu.tr (ümit çiðdem turhal)*Date*: Fri, 26 Nov 2004 01:04:29 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

for example I have a image matrice. And I'm trying to find its eigen matrice using the image as a matrice not as a vector. For a 3x3 image if we turn the image matrice into vector form we can find 9 eigen vectors which some of them have zero eigenvalue. But in matrice form we can find only 3 eigenvectors. But can I find the zero eigenvectors which have zero eigenvalue which corresponds in the vector form.I'm trying to find zero eigenvalues and their eigenvectors for an image matrice when using image as a matrice not as a vector.