1. Free subsemigroups in topological semigroups

   • Vadym Doroshenko

   Research Article 15 August 2009 Pages: 427 - 434

2. Complexity issues of checking identities in finite monoids

   • Ondřej Klíma

   Research article 22 August 2009 Pages: 435 - 444

3. Quasilinear varieties of semigroups

   • Igor Dolinka
   • Petar Đapić

   Short note 27 February 2009 Pages: 445 - 450

4. Projective semimodules over semirings with valuations in nonnegative integers

   • Alex Patchkoria

   Research article 07 April 2009 Pages: 451 - 460

5. Almost automorphic solutions to integral equations on the line

   • Claudio Cuevas
   • Carlos Lizama

   Research Article 22 May 2009 Pages: 461 - 472

6. Integral inequalities related to the Tchebychev semigroup

   • Abdellatif Bentaleb
   • Said Fahlaoui

   Research Article 03 June 2009 Pages: 473 - 479

7. Sets satisfying the Central Sets Theorem

   • Neil Hindman
   • Dona Strauss

   Research article 01 August 2009 Pages: 480 - 506

8. Existence and uniqueness of mild solutions for semilinear integro-differential equations of fractional order with nonlocal initial conditions and delays

   • Lanying Hu
   • Yong Ren
   • R. Sakthivel

   Research article 30 June 2009 Pages: 507 - 514

9. Biflatness of semigroup algebras

   • Paul Ramsden

   Research article 03 September 2009 Pages: 515 - 530

10. The closure of the smallest ideal of an ultrafilter semigroup

    • Onesmus Shuungula
    • Yevhen Zelenyuk
    • Yuliya Zelenyuk

    Research article 24 July 2009 Pages: 531 - 539

11. Continuity and equicontinuity of semigroups on norming dual pairs

    • Markus Kunze

    Research article Open access 01 August 2009 Pages: 540 - 560

12. Towards a better understanding of the semigroup tree

    • Maria Bras-Amorós
    • Stanislav Bulygin

    Research Article 28 July 2009 Pages: 561 - 574

13. Continuity properties of Markov semigroups and their restrictions to invariant L ¹-spaces

    • Sander C. Hille
    • Daniël T. H. Worm

    Research Article Open access 27 August 2009 Pages: 575 - 600