- Ayık, G., Ayık, H., Howie, J.M., Ünlü, Y.,
Rank properties
of the semigroup of singular transformations on
a finite set, Communications
in Algebra, 36/7 (2008) 2581--2587 .
- Ayık, G., Ayık, H., Ünlü, Y., On Semigroup Presentations and Adian Graphs, Discrete Mathematics, 308/11
(2008) 2288--2291.
- Ayık, G., Ayık, H., Ünlü, Y., Presentations and word problems for strong semilattices of semigroups, Algebra & Discrete Mathematics, 4 (2005) 28--35.
- Ayık, H., On Finiteness Conditions for Rees Matrix Semigroups , Czechoslovak Math. J., 55 (2005) 455--463.
- Ayık, G., Ayık, H., Howie, J.M., On Factorisations and Generators in Transformation Semigroup , Semigroup Forum, 70(2),(2005), 225--237.
- Ayık, G., Ayık, H., Howie, J.M., Ünlü, Y., The Structure of Elements in Finite Full Transformation Semigroups , Bull. Australian Math. Soc., 71 (2005), 69--74.
- Ayık, G., Ayık, H., Ünlü, Y., Presentations for S and S/r from a Given Presentation r , Semigroup Forum, 70(1),(2005), 146--149.
- Ayık, H., Minisker, M., Vatansever, B., Minimal Presentations and Embedding into Inefficient Semigroups , Algebra Colloquium, 12, (2005), 59--65.
- Ayık, H., Kuyucu, F., Vatansever, B., On Semigroup Presentations and Efficiency , Semigroup Forum, 65 (2002), 329--335.
- Ayık, H., Campbell, C., O'Connor, J., Ruskuc, N., Minimal Presentations and Efficiency of Semigroups , Semigroup Forum, 60(2000),231--242.
- Ayık, H., Campbell, C., O'Connor, J., Ruskuc, N., On the Efficiency of Finite Simple Semigroups , Turk J. Math., 24 (2000),129--146.
- Ayık, H., Ruskuc, N., Campbell, C., O'Connor, J., The Semigroup Efficiency
of Groups and Monoids , Proc. Roy. Irish Acad. Sec. A, 100/2 (2000),
171--176.
- Ayık, H., Campbell, C., O'Connor, J., Ruskuc, N., On the Efficiency of Wreath Products of Groups, in Groups Korea 98 (Eds: Y.G. Baik, D.L. Johnson and A.C. Kim), Walter de Gruytet, Berlin, New York, (2000) 39--51.
- Ayık, H., Campbell, C., O'Connor, J., Ruskuc, N., The Semigroup Efficiency of Direct Products of Groups, in Proc. Internat. Conf. Semigroups (Eds: P.Smith, E. Giraldes and P. Martins), World Scientific, Singapore, (2000), 19--25.
- Ayık, H., Ruskuc, N., Generators and Relations of Rees Matrix Semigroups , Proc. Edinburg Math. Soc., 42 (1999), 481--495.
- Ayık, H., Abdullayev, F., "International Workshop On Analysis and Its Applications, Abstracts, 7 - 11 September 2004, Mersin", Mersin University, (2004).
- Ayık, H., Abdullayev, F., "XV. Ulusal Matematik Sempozyumu Bildiri Özetleri, 4 - 7 Eylül 2002, Mersin,", Mersin Üniversitesi, (2002).
