Communications in Algebra, Volume 34, Issue 9 (2006)

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Communications in Algebra, Volume 34, Issue 9 (2006)

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Original Articles

Article
Depth Two, Normality, and a Trace Ideal Condition for Frobenius Extensions
Lars Kadison & Burkhard Külshammer
Pages: 3103-3122
Published online: 23 Nov 2006
AbstractforDepth Two, Normality, and a Trace Ideal Condition for Frobenius Extensions | Full Text | References | PDF (249.4 KB)
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Article
On the Finite and Nonfinite Generation of Diagonal Acts
Peter Gallagher
Pages: 3123-3137
Published online: 23 Nov 2006
AbstractforOn the Finite and Nonfinite Generation of Diagonal Acts | Full Text | References | PDF (120.5 KB)
  • 73 Views
  • 9 CrossRef citations
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Article
On Modules and Complexes Without Self-Extensions
Raymundo Bautista & Efrén Pérez
Pages: 3139-3152
Published online: 23 Nov 2006
AbstractforOn Modules and Complexes Without Self-Extensions | Full Text | References | PDF (145.7 KB)
  • 88 Views
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Article
A Note on t-SFT-rings
B. G. Kang & M. H. Park
Pages: 3153-3165
Published online: 23 Nov 2006
AbstractforA Note on t-SFT-rings | Full Text | References | PDF (144.7 KB)
  • 98 Views
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Article
Quasicentralizer of LCM-Homomorphisms
Eddy Godelle
Pages: 3167-3181
Published online: 23 Nov 2006
AbstractforQuasicentralizer of LCM-Homomorphisms | Full Text | References | PDF (169.8 KB)
  • 53 Views
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Article
Convex Geometries on Root Systems
Annette Pilkington
Pages: 3183-3202
Published online: 23 Nov 2006
AbstractforConvex Geometries on Root Systems | Full Text | References | PDF (313.7 KB)
  • 131 Views
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Article
On Smash Products Of Hopf Algebras
Ji Qingzhong & Qin Hourong
Pages: 3203-3222
Published online: 23 Nov 2006
AbstractforOn Smash Products Of Hopf Algebras | Full Text | References | PDF (153 KB)
  • 222 Views
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Article
From an Elementary Result on Real Closed Fields to Positive Operators on Ordered Fields
Anatole Khelif
Pages: 3223-3233
Published online: 23 Nov 2006
AbstractforFrom an Elementary Result on Real Closed Fields to Positive Operators on Ordered Fields | Full Text | References | PDF (129.1 KB)
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Article
On Semi-Cover-Avoiding Maximal Subgroups and Solvability of Finite Groups
Xiuyun Guo, Junxin Wang & K. P. Shum
Pages: 3235-3244
Published online: 23 Nov 2006
AbstractforOn Semi-Cover-Avoiding Maximal Subgroups and Solvability of Finite Groups | Full Text | References | PDF (141.6 KB)
  • 65 Views
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Article
The Mullineux Map for RoCk Blocks
Rowena Paget
Pages: 3245-3253
Published online: 23 Nov 2006
AbstractforThe Mullineux Map for RoCk Blocks | Full Text | References | PDF (112.8 KB)
  • 79 Views
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Article
Tilting Modules and the Subcategories (CMi)
María Inés Platzeck & Nilda Isabel Pratti
Pages: 3255-3266
Published online: 23 Nov 2006
AbstractforTilting Modules and the Subcategories (CMi) | Full Text | References | PDF (174.6 KB)
  • 56 Views
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Article
A Generalized Global Cartan Decomposition: A Basic Example
Boris Širola
Pages: 3267-3279
Published online: 23 Nov 2006
AbstractforA Generalized Global Cartan Decomposition: A Basic Example | Full Text | References | PDF (137 KB)
  • 93 Views
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Article
Relative Flatness, Mittag–Leffler Modules, and Endocoherence
Lixin Mao & Nanqing Ding
Pages: 3281-3299
Published online: 23 Nov 2006
AbstractforRelative Flatness, Mittag–Leffler Modules, and Endocoherence | Full Text | References | PDF (292.5 KB)
  • 137 Views
  • 6 CrossRef citations
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Article
Finite Presentability of Bruck–Reilly Extensions of Semilattices
C. A. Carvalho & N. Ruškuc
Pages: 3301-3313
Published online: 23 Nov 2006
AbstractforFinite Presentability of Bruck–Reilly Extensions of Semilattices | Full Text | References | PDF (190.1 KB)
  • 67 Views
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Article
Rings of Constants of the Form k[f]
Arno van den Essen, Jean Moulin Ollagnier & Andrzej Nowicki
Pages: 3315-3321
Published online: 23 Nov 2006
AbstractforRings of Constants of the Form k[f] | Full Text | References | PDF (103.1 KB)
  • 80 Views
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Article
Integral Loop Rings of Loops Whose Derived Subloop Is Central
Luiz G. X. de Barros
Pages: 3323-3328
Published online: 23 Nov 2006
AbstractforIntegral Loop Rings of Loops Whose Derived Subloop Is Central | Full Text | References | PDF (86.8 KB)
  • 40 Views
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Article
The Natural Embedding of Positive Singular Artin Monoids
Noelle Antony
Pages: 3329-3346
Published online: 23 Nov 2006
AbstractforThe Natural Embedding of Positive Singular Artin Monoids | Full Text | References | PDF (169.1 KB)
  • 37 Views
  • 2 CrossRef citations
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Article
Symmetric Elements Under Oriented Involutions in Group Rings
Osnel Broche Cristo & César Polcino Milies
Pages: 3347-3356
Published online: 23 Nov 2006
AbstractforSymmetric Elements Under Oriented Involutions in Group Rings | Full Text | References | PDF (113.8 KB)
  • 122 Views
  • 9 CrossRef citations
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Article
Classification of Groups Which Admit a Finite Number of Distinct Right-Orders
A. Kirk
Pages: 3357-3386
Published online: 23 Nov 2006
AbstractforClassification of Groups Which Admit a Finite Number of Distinct Right-Orders | Full Text | References | PDF (240.3 KB)
  • 68 Views
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Article
Absolute Fourth Moments and Finiteness of Linear Groups
David Gluck & Kay Magaard
Pages: 3387-3407
Published online: 23 Nov 2006
AbstractforAbsolute Fourth Moments and Finiteness of Linear Groups | Full Text | References | PDF (197.6 KB)
  • 51 Views
  • 1 CrossRef citations
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Article
A Note on the Associated Primes of Local Cohomology Modules
Keivan Borna Lorestani, Parviz Sahandi & Tirdad Sharif
Pages: 3409-3412
Published online: 23 Nov 2006
AbstractforA Note on the Associated Primes of Local Cohomology Modules | Full Text | References | PDF (71.1 KB)
  • 73 Views
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Article
Doi–Hopf Modules and Yetter–Drinfeld Modules for Quasi-Hopf Algebras
D. Bulacu, S. Caenepeel & B. Torrecillas
Pages: 3413-3449
Published online: 23 Nov 2006
AbstractforDoi–Hopf Modules and Yetter–Drinfeld Modules for Quasi-Hopf Algebras | Full Text | References | PDF (273.2 KB)
  • 107 Views
  • 5 CrossRef citations
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Article
The Subalgebra of Finite Support in an Incidence Algebra
E. Spiegel
Pages: 3451-3457
Published online: 23 Nov 2006
AbstractforThe Subalgebra of Finite Support in an Incidence Algebra | Full Text | References | PDF (86.4 KB)
  • 51 Views
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Article
On the Equations De.ning Curves in a Polynomial Algebra
Ze Min Zeng
Pages: 3459-3466
Published online: 23 Nov 2006
AbstractforOn the Equations De.ning Curves in a Polynomial Algebra | Full Text | References | PDF (109.4 KB)
  • 37 Views
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Article
Remarks on Projective Algebraic Fiber Spaces Over Curves
Qilin Yang
Pages: 3467-3474
Published online: 23 Nov 2006
AbstractforRemarks on Projective Algebraic Fiber Spaces Over Curves | Full Text | References | PDF (102.1 KB)
  • 90 Views
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Article
Perfect Pairs of Ideals and Duals in Numerical Semigroups
Kurt Herzinger, Stephen Wilson, Nándor Sieben & Jeff Rushall
Pages: 3475-3486
Published online: 23 Nov 2006
AbstractforPerfect Pairs of Ideals and Duals in Numerical Semigroups | Full Text | References | PDF (119.8 KB)
  • 80 Views
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Errata

Correction
Errata and Addenda
“Semiclean Rings” by Yuanqing Ye, Communications in Algebra, 31(11), pp. 5609–5625, 2003.
Yuanqing Ye
Page: 3487
Published online: 23 Nov 2006
CitationforErrata and Addenda | Full Text | References | PDF (42.2 KB)
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