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math.CO2024
Some results on -irregularity
Slobodan Filipovski, Darko Dimitrov, Martin Knor +1
The -irregularity (or sigma total index) is a graph invariant which is defined as where denotes the degree of…
math.CO2024
Proper Z4 x Z2-colorings: structural characterization with application to some snarks
Jelena Sedlar, Riste Škrekovski
A proper abelian coloring of a cubic graph G by a finite abelian group A is any proper edge-coloring of G by the non-zero elements of A such that the sum of the colors of the three…