References
- [1] Ana Castelaz−Commutativity degree of finite groups, A Thesis Submitted to the Graduade Faculty of Wake Forest University, in Partial Fulfillment of the Requirements for the degree of Masters of Arts in the Departament of Mathematics, North Carolina, May (2010).
- [2] Piergiulio Corsini− Introducere în teoria hipergrupurilor, Ed. Universităt¸ii Alexandru Ioan Cuza, Iaşi, (1998).
- [3] Piergiulio Corsini, Violeta Leoreanu− Applications of hyperstructures theory, Kluwer Academic Publishers Boston/Dordrechtt/London.
- [4] Bijan Davvaz− Polygroup Theory and Related Systems, World Scientific Publishing.
- [5] Paul Erdős, Pál Turán− On Some Problems of a Statistical Group Theory, Acta Mathematica Academiae Scientiarum Hungaricae Tomus 19 (3−4), pp.413 − 435, (1968).10.1007/BF01894517
- [6] W.H. Gustafson − What is the probability that two group elements commute?, Am. Math. Mon, 80(9):1031 − 1034, (1974).10.1080/00029890.1973.11993437
- [7] Azam Hokmabadi, Fahimeh Mohammadzadeh and Elaheh Mohammadzade The commutativity degree of a polygroup, The 6th International Group Theory Conference, 12-13 March 2014, Golestan University, Gorgan, Iran, 88-91.
- [8] Li Hongxing, Duan Qinzi and Wang Peizhuang − Hypergroup (I), Busefal, Vol.23, (1985).
- [9] Desmond MacHale − How commutative can a non-commutative group be?, The Mathematical Gazette, Vol. 58, No. 405, pp. 199 − 202, (1974).10.2307/3615961
- [10] G. Miller−Relative number of non-invariant operators in a group,Prco. Nat. Acad. Sci, USA, 30(2):25 − 28, (1944).10.1073/pnas.30.2.25107866016578104
- [11] Marius Tărnăuceanu − Subgroup commutativity degrees of finite groups, Journal of Algebra, 337, pp. 363 − 368, (2011).10.1016/j.jalgebra.2011.05.001