There is no upper bound for the diameter of the commuting graph of a finite group. Giudici, M. & Parker, C. J. Comb. Theory A, 120(7):1600-1603, 2013.
There is no upper bound for the diameter of the commuting graph of a finite group. [link]Link  There is no upper bound for the diameter of the commuting graph of a finite group. [link]Paper  bibtex   
@article{journals/jct/GiudiciP13,
  added-at = {2024-06-07T00:00:00.000+0200},
  author = {Giudici, Michael and Parker, Chris},
  biburl = {https://www.bibsonomy.org/bibtex/2e925a3667f509a61c388c5e62bf795c6/dblp},
  ee = {https://doi.org/10.1016/j.jcta.2013.05.008},
  interhash = {80367890e8b25d87edf6b3daf8417338},
  intrahash = {e925a3667f509a61c388c5e62bf795c6},
  journal = {J. Comb. Theory A},
  keywords = {dblp},
  number = 7,
  pages = {1600-1603},
  timestamp = {2024-06-10T07:09:34.000+0200},
  title = {There is no upper bound for the diameter of the commuting graph of a finite group.},
  url = {http://dblp.uni-trier.de/db/journals/jct/jcta120.html#GiudiciP13},
  volume = 120,
  year = 2013
}

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