Complete multipartite graph2 K2,2,3 Turan graph T(n,r) T(n,r）=Kn1,n2,nr m+n2++n,=nm:e{?,[]}
K2,2,3 Complete multipartite graph Kn1,n2,...,nr Turán graph T(n, r) T(n, r) = Kn1,n2,...,nr n1 + n2 + ··· + nr = n ni ⇧n r ⇥ , ⇤n r ⌅⌃
Turan graph T(n,r) T(n,r）=Kn1,n2,nr m+m++m,=nme{?,[]} T(n,r-1)has no K ≤(2")(，) r-2 n2 2(r-1
Turán graph T(n, r) T(n, r) = Kn1,n2,...,nr n1 + n2 + ··· + nr = n ni ⇧n r ⇥ , ⇤n r ⌅⌃ T(n, r-1) has no Kr |T(n, r 1)| ⇥ r 1 2 ⇥ n r 1 ⇥2 = r 2 2(r 1)n2