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All Journal Electronic Journal of Graph Theory and Applications (EJGTA)
Susanto, Faisal
Institut Teknologi Bandung
Electrical & Electronics Engineering

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Further results on the total vertex irregularity strength of trees Susanto, Faisal; Simanjuntak, Rinovia; Baskoro, Edy Tri
Electronic Journal of Graph Theory and Applications (EJGTA) Vol 13, No 1 (2025): Electronic Journal of Graph Theory and Applications
Publisher : GTA Research Group, Univ. Newcastle, Indonesian Combinatorics Society and ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/ejgta.2025.13.1.9

Abstract

We investigate the total vertex irregularity strength of trees with specific characteristics. Initially, we categorize trees into three distinct groups: types A, B, and C. Subsequently, we calculate tvs(T) for all type A trees T where the maximum degree is at least three. Additionally, we provide the value of tvs(T) whenever T is a tree of types B or C with maximum degree at least three and large number of exterior vertices. Finally, we propose a conjecture related to tvs(T) where T is a non-path tree of types B or C with few exterior vertices. 
Co-Authors Baskoro, Edy Tri Simanjuntak, Rinovia