Recurrence Theorem for Semigroup Actions Josiney A. Souza RESEARCH ARTICLE 08 September 2011 Pages: 351 - 370
A cohomology approach to the extension problem for commutative hypergroups Herbert HeyerSatoshi Kawakami RESEARCH ARTICLE 09 July 2011 Pages: 371 - 394
On the coset laws for skew lattices Karin Cvetko-VahJoão Pita Costa RESEARCH ARTICLE 18 August 2011 Pages: 395 - 411
On some medial semigroups with an associate subgroup Mario Petrich Research Article 22 September 2011 Pages: 412 - 446
Commutative semigroups with cancellation law: a representation theorem J. GrzybowskiD. PallaschkeR. Urbański RESEARCH ARTICLE 27 July 2011 Pages: 447 - 456
\(\mathcal{P}\)-kernel normal systems for \(\mathcal{P}\)-inversive semigroups Hengwu Zheng RESEARCH ARTICLE Open access 09 July 2011 Pages: 457 - 467
The Frobenius problem for numerical semigroups with multiplicity four J. C. RosalesM. B. Branco RESEARCH ARTICLE 03 August 2011 Pages: 468 - 478
On Weierstrass semigroups of double coverings of genus three curves Jiryo Komeda RESEARCH ARTICLE 24 August 2011 Pages: 479 - 488
Green’s relations and regularity for semigroups of transformations that preserve reverse direction equivalence Lun-Zhi DengJi-Wen ZengTai-Jie You RESEARCH ARTICLE 21 September 2011 Pages: 489 - 498
A note on the definition of small overlap monoids Mark Kambites RESEARCH ARTICLE 28 October 2011 Pages: 499 - 512
On exponential stability of contraction semigroups Carlos S. KubruslyNhan Levan RESEARCH ARTICLE 12 October 2011 Pages: 513 - 521
Quasi-ideal transversals of abundant semigroups and spined products Jehan Al-BarJames Renshaw Research Article 10 April 2010 Pages: 522 - 537
Addendum to: Quasi-ideal transversals of abundant semigroups and spined products Jehan Al-BarJames Renshaw Addendum 31 August 2011 Pages: 538 - 540
