Duaa Abdullah

most citedIrregularity and Topological Indices in Fibonacci Word Trees and Modified Fibonacci Word Index

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math.GM2026

$σ$ -Irregularity of Trees with Prescribed Maximum Degree: A Majorization--Duality--Stability Framework

Jasem Hamoud, Duaa Abdullah

Trees of maximum $σ$ -irregularity subject to a prescribed maximum degree $Δ$ have been characterized for $Δ = 4$ and $Δ = 5$ , with the extension to arbitrary $Δ ⩾ 3$ . This paper…

σ-Irregularity of Trees with Prescribed Maximum Degree: A Majorization--Duality--Stability Framework

$σ$ -Irregularity of Trees with Prescribed Maximum Degree: A Majorization--Duality--Stability Framework