Новая страница: «''Cograph''' --- кограф. '''1.''' <math>G</math> is a '''cograph''' if <math>G</math> is the ''comparability graph'' of a ''series-parallel poset''. The clas…»
(Новая страница: «''Cograph''' --- кограф. '''1.''' <math>G</math> is a '''cograph''' if <math>G</math> is the ''comparability graph'' of a ''series-parallel poset''. The clas…»)