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. 2021 Mar 9;136(3):303. doi: 10.1140/epjp/s13360-021-01292-4

Table 5.

Relations of some particular neighborhood degree sum-based indices with their general expressions

NDS Corresponding general indices
NDS1(Γ) PNM1(Γ)
NDS2(Γ) PNM2(Γ)
NDS3(Γ) PNM3(Γ)
NDS4(Γ) PNχ1(Γ)
NDS5(Γ) PNχ-12(Γ)
NDS6(Γ) PNR1(Γ)
NDS7(Γ) PNR2(Γ)
NDS8(Γ) PNR-12(Γ)
NDS9(Γ) PNZ(2,0)(Γ)
NDS10(Γ) PNZ(1,-1)(Γ)
NDS11(Γ) PNZ(2,1)(Γ)

Here, NDS represents neighborhood degree sum-based indices