ities in Markov chains can be computed in polynomial time (by solving a set of linear equalit let) we obtain the desired result. 21. Hot AV (1994) Cdhative phenonane in KM" eateneled nolutionor flan J. That Md. 169.65 - 87. 22. Nauman M. Naomi H. base Y (1991) Score cketrndent deity model fa he evol