Просмотр кода страницы Private neighbor set

'''Private neighbor set''' --- приватное соседнее множество. 
The ''' private neighbour set''' of a vertex <math>v</math> in <math>S</math> is denoted by
<math>PN[v,S] = N[v] - N[S - \{v\}].</math> If <math>PN[v,S] \neq \emptyset</math>, then
every vertex of <math>PN[v,S]</math> is called a ''' private neighbor''' of <math>v</math>
with respect to <math>S</math>, or just an <math>S</math>-pn.
==See also==
*'' Private neighbourhood''.