Abstract
In this paper, by applying the discharging method, we prove that if G = (V, E) is a Δ-critical graph, then E ≥1/4 V (Δ + √2Δ - 1). © 2002 Elsevier, Science (USA).
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APA
Sanders, D. P., & Zhao, Y. (2002). On the size of edge chromatic critical graphs. Journal of Combinatorial Theory. Series B, 86(2), 408–412. https://doi.org/10.1006/jctb.2002.2135
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