Seems like GE on a 2x2 matrix should be pretty darn fast.... especially if you use scalar * vector type operations.

Abstract Let A be an n × n Hermitian matrix and A = UΛUH be its spectral decomposition, where U is a unitary matrix of order n and Λ is a diagonal matrix. In this note we present the perturbation ...

This is a preview. Log in through your library . Abstract This paper describes and compares several methods for computing stationary probability distributions of Markov chains. The main linear algebra ...