Pseudo-Anosov homeomorphism (source code)

= Pseudo-Anosov homeomorphism
{wiki=Pseudo-Anosov_map}

A pseudo-Anosov homeomorphism preserves two transverse measured foliations and stretches one while contracting the other by the same factor greater than one. Unlike the <Anosov homeomorphism> case, the foliations may have singularities.