International Journal of Algebra and Computation (IJAC), Volume 12

Volume 12, Number 1-2, February & April 2002

Volker Diekert, Markus Lohrey:
A Note on The Existential Theory of Equations in Plain Groups. 1-7
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Victor S. Guba, Mark V. Sapir:
Rigidity Properties of Diagram Groups. 9-17
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Isabel M. Araújo:
Finite Presentability of Semigroup Constructions. 19-31
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David A. Jackson:
Decision and Separability Problems for Baumslag-Solitar Semigroups. 33-49
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Akihiro Yamamura:
Embedding Theorems for Groups Presented Via Partial Automorphisms: a Generalization of Semidirect Products and HNN Extensions. 51-83
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Richard P. Kent Iv, David Peifer:
A Geometric and Algebraic Description of Annular Braid Groups. 85-97
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Cornelia Drutu:
Quasi-Isometry Invariants and Asymptotic Cones. 99-135
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Pascal Weil:
Profinite Methods in Semigroup Theory. 137-177
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Manuel Delgado, Stuart W. Margolis, Benjamin Steinberg:
Combinatorial Group Theory, Inverse Monoids, Automata, And Global Semigroup Theory. 179-211
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William A. Bogley, Jens Harlander:
Homological Decision Problems for Finitely Generated Groups with Solvable Word Problem. 213-221
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Rostislav I. Grigorchuk, Andrzej Zuk:
On a Torsion-Free Weakly Branch Group Defined by a Three State Automaton. 223-245
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Yuji Kobayashi, Friedrich Otto:
Some Exact Sequences for The Homotopy (Bi-)Module af A Monoid. 247-283
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D. A. Cruickshank, Stephen J. Pride:
New Invariants for Groups. 285-339
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Igor Mineyev:
l₁-Homology of Combable Groups and 3-Manifold Groups. 341-355
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Alair Pereira do Lago:
Local Groups in Free Groupoids Satisfying Certain Monoid Identities. 357-369
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Jean Berstel:
Recent Results on Extensions of Sturmian Words. 371-385
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Volume 12, Number 3, June 2002

Paula Maria Machado Cruz Catarino, Peter M. Higgins:
The Pseudovariety Generated by All Semigroups of Orientation-Preserving Transformations on a Finite Cycle. 387-405
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Maria João Antunes Dias Gouveia Saramago, Hilary A. Priestley:
Optimal Natural Dualities: the Structure of Failsets. 407-435
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Alexei N. Krasilnikov, David M. Riley:
The Transfer of a Commutator Identity in a Nil-Generated Algebra. 437-443
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Kosaburo Hashiguchi, Kenichi Ishiguro, Shuji Jimbo:
Decidability of The Equivalence Problem for Finitely Ambiguous Finance Automata. 445
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Michael Hoffmann, Richard M. Thomas, Nikola Ruskuc:
Automatic Semigroups with Subsemigroups of Finite Rees Index. 463-461
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Jennifer Hontz, Kailash C. Misra:
On Root Multiplicities of HA⁽¹⁾. 477-508
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Volume 12, Number 4, August 2002

James B. Hart, Lori Rafter, Constantine Tsinakis:
The Structure of Commutative Residuated Lattices. 509-524
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Keunbae Choi, Yongdo Lim:
Birget-Rhodes Expansion of Groups and Inverse Monoids of MöBius Type. 525-533
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Marina Avitabile:
Some Loop Algebras of Hamiltonian Lie Algebras. 535-567
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Charles F. Rocca Jr., Edward C. Turner:
Test Elements in Finitely Generated Abelian Groups. 569-572
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Eamonn A. O'Brien, Michael R. Vaughan-Lee:
The 2-Generator Restricted Burnside Group of Exponent 7. 575-592
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Claudio Gutiérrez:
Exponent of Periodicity of Word Equations in Fixed Dimension is Polynomial. 593-600
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Li Guo:
Ascending Chain Conditions in Free Baxter Algebras. 601-622
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Volume 12, Number 5, October 2002

Hans Ulrich Besche, Bettina Eick, Eamonn A. O'Brien:
A Millennium Project: Constructing Small Groups. 623-644
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Murat Alp:
Enumeration of Whitehead Groups of Low Order. 645-658
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José Carlos Rosales, Pedro A. García-Sánchez, Juan Ignacio García-García:
Presentations of Finitely Generated Submonoids of Finitely Generated Commutative Monoids. 659-670
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Gérard Duchamp, Florent Hivert, Jean-Yves Thibon:
Noncommutative Symmetric Functions Vi: Free Quasi-Symmetric Functions and Related Algebras. 671-717
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Clifford Bergman, Giora Slutzki:
Computational Complexity of Generators and Nongenerators in Algebra. 719-735
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Mihalis Sykiotis:
Fixed Points of Symmetric Endomorphisms of Groups. 737-745
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Volume 12, Number 6, December 2002

Joseph Loeffler, John Meier, James Worthington:
Graph Products and Cannon Pairs. 747-754
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Mark V. Lawson, Joseph Matthews, Tim Porter:
The Homotopy Theory of Inverse Semigroups. 755-790
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Gillian Z. Elston, Chrystopher L. Nehaniv:
Holonomy Embedding of Arbitrary Stable Semigroups. 791-810
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Zoltán Székely:
Computational Complexity of The Finite Algebra Membership Problem for Varieties. 811-823
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Christiane Frougny, Jacques Sakarovitch:
Two Groups Associated with Quadratic Pisot Units. 825-847
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Edgar Martínez-Moro:
Properties of Commutative Association Schemes Derived by Fglm Techniques. 849-865
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Klaus Denecke, Jörg Koppitz, Staszek Niwczyk:
Equational Theories Generated By Hypersubstitutions of Type (n). 867-876
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