1. Eightieth birthday of Professor Štefan Schwarz

   • O. Grošek
   • L. Satko
   • B. Schein

   Announcement Pages: 1 - 5

2. Semigroups of order 8

   • S. Satoh
   • K. Yama
   • M. Tokizawa

   Research Article Pages: 7 - 29

3. Characterization of monoids by condition (P) of cyclic left acts

   • Liu Zhongkui

   Research Article Pages: 31 - 39

4. Hyperassociative varieties of semigroups

   • K. Denecke
   • J. Koppitz

   Research Article Pages: 41 - 48

5. Equivalences, α-semigroups and α-congruences

   • Pei Huisheng

   Research Article Pages: 49 - 58

6. Semigroups of finite matrices

   • O. S. Rothaus

   Research Article Pages: 59 - 65

7. Equations on the semidirect product of a finite semilattice by a finite commutative monoid

   • F. Blanchet-Sadri
   • Xin-Hong Zhang

   Research Article Pages: 67 - 81

8. HNN extensions of semigroups

   • Deko V. Dekov

   Research Article Pages: 83 - 87

9. Holomorphic continuations ofC ₀-groups on Banach spaces

   • O. ElMennaoui

   Research Article Pages: 89 - 97

10. Semigroup formulation and approximation of a linear age-dependent population problem with spatial diffusion

    • Waltraud Huyer

    Research Article Pages: 99 - 114

11. Direct sums of spaces of functions on semigroups

    • H. D. Junghenn

    Research Article Pages: 115 - 123

12. On uniformly repetitive semigroups

    • G. Pirillo
    • S. Varricchio

    Short Note Pages: 125 - 129

13. Decomposition of regular subsemigroup lattices

    • K. G. Johnston

    Short Note Pages: 131 - 135

14. Points very close to the smallest ideal of βS

    • Neil Hindman
    • Amha Tume Lisan

    Research Article Pages: 137 - 141

15. The monoid of strong endomorphisms of a graph

    • Weimin Li

    Research Article Pages: 143 - 149

16. The RAGE theorem in Banach spaces

    • Josef Kreulich

    Research Article Pages: 151 - 163

17. Partial orders in semigroups and semirings of right quotients

    • Udo Hebisch

    Research Article Pages: 165 - 174

18. Varieties of completely regular semigroups generated by Mal’cev products

    • Colleen A. Vachuska
    • Shuhua Zhang

    Research Article Pages: 175 - 194

19. Towards a classification of maximal unicellular bands

    • P. Fillmore
    • G. MacDonald
    • H. Radjavi

    Research Article Pages: 195 - 215

20. Order theoretic variants of the fundamental theorem of compact semigroups

    • S. D. Hippisley-Cox

    Research Article Pages: 217 - 237

21. Identities of orthodox semigroup rings

    • Guangtian Song

    Research Article Pages: 239 - 246

22. Embedding ω-continuous posets in function spaces of domains

    • Kishor Kale

    Research Article Pages: 247 - 259

23. The Mitsch order on a semigroup

    • Peter M. Higgins

    Short Note Pages: 261 - 266

24. On regular le-semigroups

    • Niovi Kehayopulu

    Short Note Pages: 267 - 269

25. Evgeniî Sergejevich Lyapin on his 80th birthday

    • J. S. Ponizovskiî

    Announcement Pages: 271 - 274

26. Simplicity of wreath product of semigroups with fixed passive semigroup

    • A. V. Tishchenko

    Research Article Pages: 275 - 287

27. Compactness conditions for semigroups of linear maps

    • P. F. Duvall Jr.
    • J. W. Emert
    • S. Husch

    Research Article Pages: 289 - 301

28. Degenerate convergence of semigroups

    • Adam Bobrowski

    Research Article Pages: 303 - 327

29. On the Pin-Thérien expansion of idempotent monoids

    • Mário J. J. Branco

    Research Article Pages: 329 - 334

30. A concept of variety for regular biordered sets

    • Raymond Broeksteeg

    Research Article Pages: 335 - 348

31. A Hille-Yosida theorem for weakly continuous semigroups

    • Sandra Cerrai

    Research Article Pages: 349 - 367

32. One-parameter semigroups of operators onL _c -embedded spaces

    • Sten Bjon

    Research Article Pages: 369 - 380

33. Non-overlapping control systems on Lie groups

    • Younki Chae
    • Yongdo Lim

    Research Article Pages: 381 - 386

34. A sharp result on the exponential operator-norm decay of a family of strongly continuous semigroups

    • Roberto Triggiani

    Research Article Pages: 387 - 395

35. Techniques of semigroup theory

    • Boris M. Schein

    Book Review Pages: 397 - 402