In interdependent graphs nodes in one network (graph) depend on other networks to function. So failures in one or several graphs induce cascading failures between the graphs which may lead to abrupt collapse.<ref name="BuldyrevParshani2010">{{cite journal|last1=Buldyrev|first1=Sergey V.|last2=Parshani|first2=Roni|last3=Paul|first3=Gerald|last4=Stanley|first4=H. Eugene|last5=Havlin|first5=Shlomo|title=Catastrophic cascade of failures in interdependent networks|journal=Nature|volume=464|issue=7291|year=2010|pages=1025–1028|issn=0028-0836|doi=10.1038/nature08932|pmid=20393559|arxiv=1012.0206|bibcode=2010Natur.464.1025B}}</ref><ref name="GaoBuldyrev2011">{{cite journal|last1=Gao|first1=Jianxi|last2=Buldyrev|first2=Sergey V.|last3=Stanley|first3=H. Eugene|last4=Havlin|first4=Shlomo|title=Networks formed from interdependent networks|journal=Nature Physics|volume=8|issue=1|year=2011|pages=40–48|issn=1745-2473|doi=10.1038/nphys2180|bibcode=2012NatPh...8...40G|citeseerx=10.1.1.379.8214}}</ref> | In interdependent graphs nodes in one network (graph) depend on other networks to function. So failures in one or several graphs induce cascading failures between the graphs which may lead to abrupt collapse.<ref name="BuldyrevParshani2010">{{cite journal|last1=Buldyrev|first1=Sergey V.|last2=Parshani|first2=Roni|last3=Paul|first3=Gerald|last4=Stanley|first4=H. Eugene|last5=Havlin|first5=Shlomo|title=Catastrophic cascade of failures in interdependent networks|journal=Nature|volume=464|issue=7291|year=2010|pages=1025–1028|issn=0028-0836|doi=10.1038/nature08932|pmid=20393559|arxiv=1012.0206|bibcode=2010Natur.464.1025B}}</ref><ref name="GaoBuldyrev2011">{{cite journal|last1=Gao|first1=Jianxi|last2=Buldyrev|first2=Sergey V.|last3=Stanley|first3=H. Eugene|last4=Havlin|first4=Shlomo|title=Networks formed from interdependent networks|journal=Nature Physics|volume=8|issue=1|year=2011|pages=40–48|issn=1745-2473|doi=10.1038/nphys2180|bibcode=2012NatPh...8...40G|citeseerx=10.1.1.379.8214}}</ref> |