Table 5.

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

NDS	Corresponding general indices
$N D S_{1} (Γ)$	$P N M_{1} (Γ)$
$N D S_{2} (Γ)$	$P N M_{2} (Γ)$
$N D S_{3} (Γ)$	$P N M_{3} (Γ)$
$N D S_{4} (Γ)$	$P N χ_{1} (Γ)$
$N D S_{5} (Γ)$	$P N χ_{- \frac{1}{2}} (Γ)$
$N D S_{6} (Γ)$	$P N R_{1} (Γ)$
$N D S_{7} (Γ)$	$P N R_{2} (Γ)$
$N D S_{8} (Γ)$	$P N R_{- \frac{1}{2}} (Γ)$
$N D S_{9} (Γ)$	$P N Z_{(2, 0)} (Γ)$
$N D S_{10} (Γ)$	$P N Z_{(1, - 1)} (Γ)$
$N D S_{11} (Γ)$	$P N Z_{(2, 1)} (Γ)$

Here, NDS represents neighborhood degree sum-based indices