| 1. | Cover for Vol. 15, No. 1. | |
| 2. | Abundant semigroups with medial idempotents | |
| صفحه 1-34 | ||
| Abdulsalam El-Qallali | ||
| 3. | Pre-image of functions in $C(L)$ | |
| صفحه 35-58 | ||
| Ali Rezaei Aliabad؛ Morad Mahmoudi | ||
| 4. | Flatness properties of acts over semigroups | |
| صفحه 59-92 | ||
| Valdis Laan؛ Ülo Reimaa؛ Lauri Tart؛ Elery Teor | ||
| 5. | Simplicial structures over the 3-sphere and generalized higher order Hochschild homology | |
| صفحه 93-143 | ||
| Samuel Carolus؛ Jacob Laubacher | ||
| 6. | Six model categories for directed homotopy | |
| صفحه 145-181 | ||
| Philippe Gaucher | ||
| 7. | The elementary construction of formal anafunctors | |
| صفحه 183-229 | ||
| David Michael Roberts | ||
| 8. | On epimorphisms and structurally regular semigroups | |
| صفحه 231-253 | ||
| Aftab Hussain Shah؛ Sakeena Bano؛ Shabir Ahmad Ahanger؛ Wajih Ashraf | ||
| 9. | (b, c)-inverse, inverse along an element, and the Schützenberger category of a semigroup | |
| صفحه 255-272 | ||
| Xavier MARY | ||
| 10. | Persian Abstracts, Vol. 15, No. 1. | |