Let L be a Lie algebra with center Z(L) .The commuting graph (L) of L is a graph with vertex set L \ Z(L) , two distinct vertices x and y are adjacent if and only if x and y commute, i.e., x, y = 0 .Let g be a finitedimensional simple Lie algebra over an algebraically closed field of characteristic zero.In this paper, we study the diameter of (g) .
Wang et al. (Sun,) studied this question.
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