참고문헌
- I. M. Araujo, M. J. J. Branco, V. H. Fernandes, G. M. S. Gomes, and N. Ruskuc, On generators and relations for unions of semigroups, Semigroup Forum 63 (2001), no. 1, 49-62. https://doi.org/10.1007/s002330010053
- H. Ayik and N. Ruskuc, Generators and relations of Rees matrix semigroups, Proc. Edinburgh Math. Soc. (2) 42 (1999), no. 3, 482-495.
-
G. Ayik, H. Ayik, and Y. Unlu, Presentations for S and
$S/{\rho}$ from a given presentation${\rho}$ , Semigroup Forum 70 (2005), no. 1, 146-149. https://doi.org/10.1007/s00233-004-0147-8 - C. Carvalho, R. D. Gray, and N. Ruskuc, Presentations of inverse semigroups, their kernels and extension, J. Aust. Math. Soc. 90 (2011), no. 3, 289-316. https://doi.org/10.1017/S1446788711001297
- J. M. Howie, Fundamentals of Semigroup Theory, Clarendon Press, Oxford, 1995.
- J. M. Howie and N. Ruskuc, Constructions and presentations for monoids, Comm. Algebra 22 (1994), no. 15, 6209-6224. https://doi.org/10.1080/00927879408825184
- D. L. Johnson, Presentations of Groups, Cambridge University Press, Cambridge, 1990.
- T. G. Lavers, Presentations of general products of monoids, J. Algebra 204 (1998), no. 2, 733-741. https://doi.org/10.1006/jabr.1997.7389
- E. F. Robertson, N. Ruskuc, and J. Wiegold, Generators and relations of direct product of semigroups, Trans. Amer. Math. Soc. 350 (1998), no. 7, 2665-2685. https://doi.org/10.1090/S0002-9947-98-02074-1