1. Evgeniy Sergeevich Lyapin

   • V. A. Makaridina
   • E. M. Mogilyanskaya

   OBITUARY 13 September 2008 Pages: 143 - 151

2. On Weierstrass semigroups of double covering of genus two curves

   • Gilvan Oliveira
   • Francisco L. R. Pimentel

   Research article 08 January 2008 Pages: 152 - 162

3. Decidability of the word problem in Yamamura’s HNN extensions of finite inverse semigroups

   • Emanuele Rodaro
   • Alessandra Cherubini

   Research article 20 February 2008 Pages: 163 - 186

4. Locally maximal idempotent-generated subsemigroups of singular orientation-preserving transformation semigroups

   • P. Zhao
   • X. Bo
   • Y. Mei

   Research Article 03 July 2008 Pages: 187 - 195

5. Partially commutative inverse monoids

   • Volker Diekert
   • Markus Lohrey
   • Alexander Miller

   Research article 08 April 2008 Pages: 196 - 226

6. On congruences on \(\mathcal{T}\) -regular semigroups

   • Mario Petrich

   Research Article 15 August 2008 Pages: 227 - 247

7. On flatness properties of cyclic S-posets

   • Xiaoping Shi

   Research article 09 October 2007 Pages: 248 - 266

8. Numerical semigroups with many gaps of the same parity

   • J. C. Rosales
   • P. Vasco

   Research Article 15 May 2008 Pages: 267 - 278

9. Fundamental semigroups having a band of idempotents

   • Gracinda M. S. Gomes
   • Victoria Gould

   Research article 15 January 2008 Pages: 279 - 299

10. Module Arens regularity for semigroup algebras

    • Reza Rezavand
    • Massoud Amini
    • Davood Ebrahimi Bagha

    Research Article 13 May 2008 Pages: 300 - 305

11. The flatness properties of S-poset A(I) and Rees factor S-posets

    • Husheng Qiao
    • Fang Li

    RESEARCH ARTICLE 22 May 2008 Pages: 306 - 315

12. Completely simple semigroups with nilpotent structure groups

    • Primož Moravec

    Research Article 25 June 2008 Pages: 316 - 324

13. On covers of cyclic acts over monoids

    • Mojgan Mahmoudi
    • James Renshaw

    Research article 23 July 2008 Pages: 325 - 338