Technical comment. A problem on Markov chains
Deptartment of Mathematics,
University of Pisa, Via F. Buonarroti 2, 56127 Pisa, Italy;
A problem (arisen from applications to networks) is posed about the principal minors of the matrix of transition probabilities of a Markov chain.
Key words: Markov chains / stochastic matrices.
© EDP Sciences, 2002