1. Numerical solution of sparse singular systems of equations arising from ergodic Markov chain modeling;Barker;Comm. Statist. Stochastic Models,1989
2. A. Ben-Israel, T.N.E. Greville, Generalized Inverse Theory and Applications, Wiley, New York, 1974.
3. GMRES on (nearly) singular systems;Brown;SIAM J. Matrix Anal. Appl.,1997
4. S.L. Campbell, C.D. Meyer Jr, Generalized inverse of linear transformations, Pitman, London, 1979.
5. Polynomial acceleration methods for solving singular systems of linear equations;Cao;J. Comput. Math.,1991