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International Journal of Algebra and Computation (IJAC), Volume 19
Volume 19, Number 1, February 2009
- Pierre Gillibert

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Critical Points of Pairs of Varieties of Algebras. 1-40 - Ralph Freese, Matthew Valeriote

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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

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Defining Relations of Low Degree of Invariants of Two 4 × 4 Matrices. 107-127
Volume 19, Number 2, March 2009
- Leonid A. Bokut, Yuqun Chen, Xiangui Zhao

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GrÖbner-shirshov Bases for Free Inverse Semigroups. 129-143 - Arturo Carpi, Valerio D'Alonzo

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On the Repetitivity Index of Infinite Words. 145-158 - Peter J. Davidson

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On the Asphericity of a Family of Relative Group Presentations. 159-189 - N. Ahanjideh, Ali Iranmanesh

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A Characterization of Bn(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 - José Carlos Rosales

, Paolo Vasco
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Opened Modular Numerical Semigroups with a Given Multiplicity. 235-246 - José Carlos Costa

, Conceição Veloso Nogueira
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Complete Reducibility of the Pseudovariety Ls1. 247-282 - Leo Creedon

, Joe Gildea
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Unitary Units of the Group Algebra F2kQ8. 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
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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
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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

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Infinite Words and Confluent Rewriting Systems: Endomorphism Extensions. 443-490 - Ie. Lutsenko, I. V. Protasov

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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

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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
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Neutral Elements, Fundamental Relations and n-Ary hypersemigroups. 567-583 - Jörg Lehnert

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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 - Benoît Larose, Matthew Valeriote

, László Zádori:
Omitting Types, Bounded Width and the Ability to Count. 647-668 - Agata Pilitowska

, Anna B. Romanowska, David Stanovský
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Varieties of Differential Modes Embeddable into Semimodules. 669-680 - Huaiyu He, Wujie Shi:

Recognition of Some Finite Simple Groups of Type DN(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
Volume 19, Number 6, September 2009
- Avi Mintz:

On the Cayley Semigroup of a Finite Aperiodic Semigroup. 723-746 - Alan J. Cain

, Victor Maltcev:
Decision Problems for Finitely Presented and One-Relation Semigroups and Monoids. 747-770 - Alan J. Cain

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Monoids Presented by Rewriting Systems and Automatic Structures for their Submonoids. 771-790 - Kalle Kaarli, László Márki:

A Characterization of the Inverse Monoid of Bi-Congruences of Certain Algebras. 791-808 - Jason P. Bell, Emilie Charlier, Aviezri S. Fraenkel, Michel Rigo

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A Decision Problem for Ultimately Periodic Sets in Nonstandard Numeration Systems. 809-839 - Klaus Denecke, Shelly L. Wismath:

The Dimension of a Variety and the Kernel of a Hypersubstitution. 841-854
Volume 19, Number 7, November 2009
- Alexei Vernitski:

One-Side Nielsen Transformations in Free Groups. 855-871 - Liangcai Zhang, Xuefeng Liu:

Characterization of the Projective General Linear Groups PGL(2, Q) by their Orders and Degree Patterns. 873-889 - Cormac Walsh:

Busemann Points of Artin Groups of dihedral Type. 891-910 - Miroslav Ploscica

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Congruence Lifting of Semilattice Diagrams. 911-924 - David Casperson, Jennifer Hyndman:

Primitive Positive Formulas Preventing a Finite Basis of Quasi-Equations. 925-935 - Marcel Jackson

, Timothy Stokes:
SEMIGROUPS WITH if-then-else AND HALTING PROGRAMS. 937-961
Volume 19, Number 8, December 2009
- Matthew Horak, Melanie Stein, Jennifer Taback:

Computing Word Length in Alternate Presentations of Thompson's Group F. 963-997 - Yevgeniya Kochubinska

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On Isomorphisms of - and -Cross-Sections of wreath Products of Finite Inverse Symmetric Semigroups. 999-1010 - Marie-Pierre Béal, Fabio Burderi, Antonio Restivo:

Coding Partitions of Regular Sets. 1011-1023 - Michal M. Stronkowski

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Embedding Entropic Algebras into Semimodules and Modules. 1025-1047 - Piroska Csörgö, Ales Drápal

, Michael K. Kinyon
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Buchsteiner Loops. 1049-1088

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