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Arrangeable graph: различия между версиями

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'''Arrangeable graph''' --- аранжируемый граф.
'''Arrangeable graph''' — ''[[аранжируемый граф]].''


A ''cf-graph''is called '''arrangeable''' if its ''arrangement''exists and
A ''[[cf-Graph|cf-graph]]'' is called '''arrangeable''' if its ''[[arrangement]]''exists and
'''nonarrangeable''' otherwise.
'''nonarrangeable''' otherwise.


Every arc of an arrangeable graph <math>G</math> is either forward or backward arc.
Every [[arc]] of an arrangeable [[graph, undirected graph, nonoriented graph|graph]] <math>G</math> is either forward or backward arc.
An arc of <math>G</math> is called a '''backward''' arc if it is
An arc of <math>G</math> is called a '''backward''' arc if it is an ''<math>F</math>-inverse arc'' for an arrangement of <math>G</math> and a '''forward''' arc if it is an ''<math>F</math>-direct arc'' for an arrangement of <math>G</math>.
an ''<math>F</math>-inverse arc''for an arrangement of <math>G</math> and
a '''forward''' arc if it is an ''<math>F</math>-direct arc''for
an arrangement of <math>G</math>.


A '''depth''' of an arrangeable graph <math>G</math> is defined
A '''depth''' of an arrangeable graph <math>G</math> is defined as the depth of an arrangement of <math>G</math>.
as the depth of an arrangement of <math>G</math>.