참고문헌
- F. Otto, Conjugacy in monoids with a special Church-Rosser presentation is decidable, Semigroup Forum 29 (1984), 223-240. https://doi.org/10.1007/BF02573327
- G. Kudryavtseva and V. Mazorchuk, On conjugation in some transformation and Brauer-type semigroups, Publ. Math. Debrecen 70 (2007), 19-43. https://doi.org/10.5486/PMD.2006.3354
- G. Kudryavtseva and V. Mazorchuk, On three approaches to conjugacy in semigroups, Semigroup Forum 78 (2009), 14-20. https://doi.org/10.1007/s00233-008-9047-7
- G. Lallement, Semigroups and Combinatorial Applications (John Wiley and Sons, New York, 1979).
- J. Araujo, M. Kinyon, J. Konieczny and A. Malheiro, Four notions of conjugacy for abstract semigroups, to appear in Proc. Roy. Soc. Edinburgh Sect. A, preprint (2015), arXiv:1503.00915v2.
- J. Araujo, J. Konieczny and A. Malheiro, Conjugation in semigroups, J. Algebra 403 (2014), 93-134. https://doi.org/10.1016/j.jalgebra.2013.12.025
- J. Koneicny, A new definition of conjugacy for semigroups, J. Algebra and Appl. 17, 1850032(2018)[20 pages]. https://doi.org/10.1142/S0219498818500329
- J. M. Howie, Fundamentals of Semigroup Theory (Oxford University Press, New York, 1995).
- T. Jech, Set Theory, Third Edition, Springer-Verlag, New York, 2006.