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Author

Seda Oğuz Ünal

2 papers indexed here

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Open access Jul 2026

The Contrastive Sombor Index: Structural Properties and Applications to Monogenic Semigroup Graphs

The Sombor index has recently become a central tool among degree-based graph invariants; however, it does not explicitly isolate degree imbalance along edges. In this work, we introduce the degree-based Contrastive Sombor Index (CSO), which combines endpoint-degree magnitude with local degree imbalance. For a finite si...

Seda Oğuz Ünal · 0 citations
Open access Jul 2026

Degree-based topological indices of monogenic semigroup graphs: reduced Zagreb indices, coindices and PI index

Topological indices play a fundamental role in the study of graph structures and their quantitative properties, particularly in applications related to chemistry, network science, and dynamic system analysis. In this work, we study the Reduced Zagreb index, Zagreb coindices, and the PI index of monogenic semigroup grap...

Seda Oğuz Ünal · 0 citations

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