Complete multipartite graphK2 K22,3 Turan graph T(n,r) T(n,r）=Kn1,n2,nr 1+2++,=nm:∈{L」[}
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+m2++m=nme{,[]} T(n,r-1)has no Kr mar-训≤(2')(，) r-2 2r-n2
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