1. Left chain semigroups

   • I. B. Kozhukhov

   Research Article 01 December 1981 Pages: 1 - 8

2. Green's ℒ-relation for generalized polynomials

   • Bridget B. Baird
   • K. D. Magill Jr.

   Research Article 01 December 1981 Pages: 9 - 45

3. Centralizer near-rings determined by completely regular inverse semigroups

   • Carlton J. Maxson
   • Kirby C. Smith

   Research Article 01 December 1981 Pages: 47 - 58

4. Connections between left adequate semigroups and γ-semigroups

   • A. Batbedat
   • J. B. Fountain

   Research Article 01 December 1981 Pages: 59 - 65

5. Some remarks on P. Lévy's theorem for a net of discrete measures and the purity law on locally compact semigroups

   • Arnold Janssen

   Research Article 01 December 1981 Pages: 67 - 82

6. Polynomial functions over finite monoids

   • Robert F. Tichy

   Research Article 01 December 1981 Pages: 83 - 87

7. Semigroups whose regular ℐ-classes form well-ordered chains

   • K. D. Magill Jr.
   • S. Subbiah

   Short Note 01 December 1981 Pages: 89 - 91

8. Sur mon article “une topologie du monoide libre”

   • Christophe Reutenauer

   Short Note 01 December 1981 Pages: 93 - 95

9. Regular four-spiral semigroups, idempotent-generated semigroups and the rees construction

   • Karl Byleen

   Research Article 01 December 1981 Pages: 97 - 100

10. Certain rees matrix semigroups with universal properties

    • Mario Petrich
    • Norman R. Reilly

    Research Article 01 December 1981 Pages: 101 - 118

11. On the intersection of the maximal ideals

    • Creg Dobbins

    Research Article 01 December 1981 Pages: 119 - 123

12. Partial orders, closed relations and their automorphisms

    • Darel W. Hardy
    • Melvin C. Thornton

    Research Article 01 December 1981 Pages: 125 - 138

13. The dual of the space of measures with continuous translations

    • Gerard L. G. Sleijpen

    Research Article 01 December 1981 Pages: 139 - 150

14. Semigroups in which prime ideals are maximal

    • A. Anjaneyulu

    Research Article 01 December 1981 Pages: 151 - 158

15. Regular ℐ-classes of semigroups of continua

    • K. D. Magill Jr.
    • S. Subbiah

    Research Article 01 December 1981 Pages: 159 - 179

16. Division semirings with 1+1=1

    • Harry Hutchins

    Research Article 01 December 1981 Pages: 181 - 188

17. A note on factorizable transformation semigroups

    • Yupaporn Kemprasit

    Short Note 01 December 1981 Pages: 189 - 190

18. Sur les bandes reticulees

    • Thérèse Merlier

    Research Article 01 December 1981 Pages: 191 - 198

19. Congruence-preserving endomorphisms

    • S. A. Rankin

    Research Article 01 December 1981 Pages: 199 - 216

20. Finite globally-idempotent semigroups

    • Jerzy W. Crzymala-Busse

    Research Article 01 December 1981 Pages: 217 - 224

21. Periodic properties of groupbound semigroups

    • B. L. Madison
    • T. K. Mukherjee
    • M. K. Sen

    Research Article 01 December 1981 Pages: 225 - 234

22. On recurrent functions

    • Vladimír Olejĉek
    • Ján Ŝipoŝ

    Research Article 01 December 1981 Pages: 235 - 241

23. Which semilattice indecomposables are groups?

    • T. E. Nordahl
    • H. E. Scheiblich

    Research Article 01 December 1981 Pages: 243 - 245

24. Une approache nouvelle de la presque-periodicite faible

    • Jean-Pierre Troallic

    Research Article 01 December 1981 Pages: 247 - 255

25. Structure and ideal theory of duo semigroups

    • A. Anjaneyulu

    Research Article 01 December 1981 Pages: 257 - 276

26. Quotients of locally compact semigroups

    • Bernard L. Madison

    Short Note 01 December 1981 Pages: 277 - 281

27. No semitopological monoid can be defined on the closure of {(x,sun 1/x)| x | ℝ\{0}}

    • Wolfgang Ruppert

    Short Note 01 December 1981 Pages: 283 - 284

28. Bibliographical item

    Biographical Items 01 December 1981 Pages: 285 - 285

29. Linear algebraic semigroups

    • Mohan S. Putcha

    Survey Article 01 December 1981 Pages: 287 - 309

30. A note on generalized commutative semigroups

    • K. Venu Raju
    • J. Hanumanthachari

    Research Article 01 December 1981 Pages: 311 - 323

31. Group ideals in a semigroup of measures

    • Kar-Ping Shum

    Research Article 01 December 1981 Pages: 325 - 329

32. Uniform semigroups whose proper quasi-ideals are power joined

    • B. Pondělíček

    Research Article 01 December 1981 Pages: 331 - 337

33. On M-varieties generated by power monoids

    • Stuart W. Margolis

    Research Article 01 December 1981 Pages: 339 - 353

34. ϑ-Classes in L-unipotent semigroups

    • D. R. LaTorre

    Research Article 01 December 1981 Pages: 355 - 365

35. Thue congruences and the Church-Rosser property

    • Ronald V. Book
    • Celm P. O'Dunlaing

    Research Article 01 December 1981 Pages: 367 - 379

36. A remark on compact semilattices of groups

    • Wolfgang Ruppert

    Research Article 01 December 1981 Pages: 381 - 385

37. Locally compact bisimple inverse semigroups

    • Kadir R. Ahre

    Research Announcement 01 December 1981 Pages: 387 - 389

38. A remark on polynomial functions over finite monoids

    • Robert F. Tichy

    Short Note 01 December 1981 Pages: 391 - 392