International Journal of Algebra and Computation (IJAC), Volume 19

Volume 19, Number 1, February 2009

• Pierre Gillibert:
  Critical Points of Pairs of Varieties of Algebras. 1-40
  
• Ralph Freese, Matthew Valeriote:
  On the Complexity of Some Maltsev Conditions. 41-77
  
• Victor Maltcev:
  Cayley Automaton Semigroups. 79-95
  
• Yu. M. Movsisyan:
  Binary Representations of Algebras with at Most Two Binary Operations: a Cayley Theorem for Distributive Lattices. 97-106
  
• Vesselin Drensky, Roberto La Scala:
  Defining Relations of Low Degree of Invariants of Two 4 × 4 Matrices. 107-127
  

Volume 19, Number 2, March 2009

• L. A. Bokut, Yuqun Chen, Xiangui Zhao:
  GrÖbner-shirshov Bases for Free Inverse Semigroups. 129-143
  
• Arturo Carpi, Valerio D'Alonzo:
  On the Repetitivity Index of Infinite Words. 145-158
  
• Peter J. Davidson:
  On the Asphericity of a Family of Relative Group Presentations. 159-189
  
• N. Ahanjideh, A. Iranmanesh:
  A Characterization of B_n(Q) by the Set of Orders of Maximal Abelian Subgroups. 191-211
  
• Gilbert Baumslag, Benjamin Fine, Charles F. Miller III, Douglas Troeger:
  Virtual Properties of cyclically pinched One-Relator Groups. 213-227
  
• Juha Honkala:
  Number Systems and the Injectivity Problem for Matrix Representations of Free Monoids. 229-233
  
• J. C. Rosales, P. Vasco:
  Opened Modular Numerical Semigroups with a Given Multiplicity. 235-246
  
• José Carlos Costa, Conceição Nogueira:
  Complete Reducibility of the Pseudovariety Ls1. 247-282
  
• Leo Creedon, Joe Gildea:
  Unitary Units of the Group Algebra F_2^kQ₈. 283-286
  

Volume 19, Number 3, May 2009

• Isabel Goffa, Eric Jespers, Jan Okninski:
  Normal Domains with Monomial Presentations. 287-303
  
• David el-Chai Ben-Ezra:
  Counting Elements in the Symmetric Group. 305-313
  
• Francesca Fiorenzi:
  Periodic Configurations of Subshifts on Groups. 315-335
  
• Juan C. Benjumea, Juan Núñez, Ángel F. Tenorio:
  Computing the Law of a Family of Solvable Lie Algebras. 337-345
  
• Katsunori Kawamura:
  Universal Algebra of Sectors. 347-371
  
• Yves Cornulier:
  The Space of Finitely Generated Rings. 373-382
  
• Sergey Neshveyev, Simen Rustad:
  On the Definition of L²-Betti Numbers of Equivalence Relations. 383-396
  
• Mathias Beiglböck, Martin Goldstern, Lutz Heindorf, Michael Pinsker:
  Clones from Ideals. 397-421
  
• Thomas Voden:
  Subalgebras of Golod-Shafarevich Algebras. 423-442
  

Volume 19, Number 4, June 2009

• Julien Cassaigne, Pedro V. Silva:
  Infinite Words and Confluent Rewriting Systems: Endomorphism Extensions. 443-490
  
• Ie. Lutsenko, I. V. Protasov:
  Sparse, Thin and Other Subsets of Groups. 491-510
  
• Zhuo Li, Zhenheng Li, You'an Cao:
  Representations of the Renner Monoid. 511-525
  
• John Fountain, Gracinda M. S. Gomes, Victoria Gould:
  The Free AMPLE Monoid. 527-554
  
• Hongbo Shi:
  Finitistic Dimensions of trivially Twisted Extensions of Monomial Algebras. 555-566
  
• Bijan Davvaz, Wieslaw A. Dudek, S. Mirvakili:
  Neutral Elements, Fundamental Relations and n-Ary hypersemigroups. 567-583
  
• Jörg Lehnert:
  Some Remarks on Depth of Dead Ends in Groups. 585-594
  

Volume 19, Number 5, August 2009

• Pawel M. Idziak, Katarzyna Slomczynska, Andrzej Wronski:
  Fregean Varieties. 595-645
  
• Benoit Larose, Matt Valeriote, László Zádori:
  Omitting Types, Bounded Width and the Ability to Count. 647-668
  
• A. Pilitowska, Anna B. Romanowska, D. Stanovský:
  Varieties of Differential Modes Embeddable into Semimodules. 669-680
  
• Huaiyu He, Wujie Shi:
  Recognition of Some Finite Simple Groups of Type D_N(Q) by Spectrum. 681-698
  
• Ralph Stöhr, Michael R. Vaughan-Lee:
  Products of Homogeneous Subspaces in Free Lie Algebras. 699-703
  
• Václav Koubek, Vojtech Rödl, Benjamin Shemmer:
  Representing Subdirect Product Monoids by Graphs. 705-721