Новая страница: «'''Kuratowski's theorem''' --- теорема Куратовского. '''Theorem'''. A graph <math>G</math> is planar iff it does not contain a ''subdivision'' o…»
(Новая страница: «'''Kuratowski's theorem''' --- теорема Куратовского. '''Theorem'''. A graph <math>G</math> is planar iff it does not contain a ''subdivision'' o…»)