Generic-case complexity, decision problems in group theory and random walks

Ilya Kapovich Alexei G. Myasnikov Paul Schupp Vladimir Shpilrain Generic-case complexity, decision problems in group theory and random walks http://arxiv.org/abs/math.GR/0203239 2002 CoRR math.GR/0203239 db/journals/corr/corr0203.html#math-GR-0203239 informal publication