Contents of Volume 129, Number 4

All articles in this issue are freely accessible.

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Trace methods in twisted group algebras

D. S. Passman.
Proc. Amer. Math. Soc. 129 (2001), 943-946
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MathSciNet review: 1707017

Every $Σ$-CS-module has an indecomposable decomposition

José L. Gómez Pardo and Pedro A. Guil Asensio.
Proc. Amer. Math. Soc. 129 (2001), 947-954
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MathSciNet review: 1709763

Polynomial bounds for rings of invariants

Harm Derksen.
Proc. Amer. Math. Soc. 129 (2001), 955-963
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MathSciNet review: 1814136

Descent algebras, hyperplane arrangements, and shuffling cards

Jason Fulman.
Proc. Amer. Math. Soc. 129 (2001), 965-973
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MathSciNet review: 1625753

Global existence and blowup of solutions for a parabolic equation with a gradient term

Shaohua Chen.
Proc. Amer. Math. Soc. 129 (2001), 975-981
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MathSciNet review: 1712933

An order characterization of commutativity for $C^{∗}$-algebras

Wei Wu.
Proc. Amer. Math. Soc. 129 (2001), 983-987
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MathSciNet review: 1814137

A functional equation arising from ranked additive and separable utility

János Aczél, Gyula Maksa, Che Tat Ng and Zsolt Páles.
Proc. Amer. Math. Soc. 129 (2001), 989-998
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MathSciNet review: 1814138

FS-property for $C^{*}$-algebras

Kazunori Kodaka and Hiroyuki Osaka.
Proc. Amer. Math. Soc. 129 (2001), 999-1003
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MathSciNet review: 1814139

Subsemivarieties of $Q$-algebras

M. H. Faroughi.
Proc. Amer. Math. Soc. 129 (2001), 1005-1014
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MathSciNet review: 1709750

Essentiality for Mönch type maps

Ravi P. Agarwal and Donal O'Regan.
Proc. Amer. Math. Soc. 129 (2001), 1015-1020
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MathSciNet review: 1814140

Single elements of finite CSL algebras

W. E. Longstaff and Oreste Panaia.
Proc. Amer. Math. Soc. 129 (2001), 1021-1029
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MathSciNet review: 1814141

The Dirichlet-Jordan test and multidimensional extensions

Michael Taylor.
Proc. Amer. Math. Soc. 129 (2001), 1031-1035
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MathSciNet review: 1709767

Existence and uniqueness of steady-state solutions for an electrochemistry model

Weifu Fang and Kazufumi Ito.
Proc. Amer. Math. Soc. 129 (2001), 1037-1040
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MathSciNet review: 1814142

Morita equivalence and Pedersen ideals

Pere Ara.
Proc. Amer. Math. Soc. 129 (2001), 1041-1049
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MathSciNet review: 1814143

Non-linearity of the pluricomplex Green function

Frank Wikström.
Proc. Amer. Math. Soc. 129 (2001), 1051-1056
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MathSciNet review: 1712869

Elements in a commutative Banach algebra determining the norm topology

A. R. Villena.
Proc. Amer. Math. Soc. 129 (2001), 1057-1064
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MathSciNet review: 1709768

A class of unitarily invariant norms on $B(H)$

Jor-Ting Chan, Chi-Kwong Li and Charlies C. N. Tu.
Proc. Amer. Math. Soc. 129 (2001), 1065-1076
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MathSciNet review: 1814144

$C^{∗}$-algebras associated with branched coverings

Valentin Deaconu and Paul S. Muhly.
Proc. Amer. Math. Soc. 129 (2001), 1077-1086
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MathSciNet review: 1814145

Validity of nonlinear geometric optics with times growing logarithmically

David Lannes and Jeffrey Rauch.
Proc. Amer. Math. Soc. 129 (2001), 1087-1096
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MathSciNet review: 1814146

A Helson-Lowdenslager-deBranges Theorem in $L^{2}$

Vern I. Paulsen and Dinesh Singh.
Proc. Amer. Math. Soc. 129 (2001), 1097-1103
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MathSciNet review: 1814147

Global lower bound for the heat kernel of $-Δ+\frac{c}|x|^{2}$

Qi S. Zhang.
Proc. Amer. Math. Soc. 129 (2001), 1105-1112
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MathSciNet review: 1814148

Stability of wavelet frames and Riesz bases, with respect to dilations and translations

Jing Zhang.
Proc. Amer. Math. Soc. 129 (2001), 1113-1121
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MathSciNet review: 1814149

Divergent Laguerre series

Krzysztof Stempak.
Proc. Amer. Math. Soc. 129 (2001), 1123-1126
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MathSciNet review: 1709766

A criterion on weighted $L^{p}$ boundedness for rough multilinear oscillatory singular integrals

Yong Ding, Shanzhen Lu and Dachun Yang.
Proc. Amer. Math. Soc. 129 (2001), 1127-1136
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MathSciNet review: 1709746

Complete orthogonal decomposition homomorphisms between matrix ordered Hilbert spaces

Yasuhide Miura and Kiminao Nishiyama.
Proc. Amer. Math. Soc. 129 (2001), 1137-1141
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MathSciNet review: 1814150

Generalized frames and their redundancy

A. Askari-Hemmat, M. A. Dehghan and M. Radjabalipour.
Proc. Amer. Math. Soc. 129 (2001), 1143-1147
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MathSciNet review: 1814151

Conformal metrics and Ricci tensors in the pseudo-Euclidean space

Romildo Pina and Keti Tenenblat.
Proc. Amer. Math. Soc. 129 (2001), 1149-1160
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MathSciNet review: 1814152

Constructing the Kähler and the symplectic structures from certain spinors on 4-manifolds

Y. Byun, Y. Lee, J. Park and J. S. Ryu.
Proc. Amer. Math. Soc. 129 (2001), 1161-1168
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MathSciNet review: 1707139

Torus actions on symplectic orbi-spaces

Tanya Schmah.
Proc. Amer. Math. Soc. 129 (2001), 1169-1177
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MathSciNet review: 1709765

Martin’s Axiom does not imply perfectly normal non-archimedean spaces are metrizable

Yuan-Qing Qiao.
Proc. Amer. Math. Soc. 129 (2001), 1179-1188
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MathSciNet review: 1610777

Adjoints and the image of the ball

Fred Richman.
Proc. Amer. Math. Soc. 129 (2001), 1189-1193
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MathSciNet review: 1701689

A short proof of Ellentuck’s Theorem

Pierre Matet.
Proc. Amer. Math. Soc. 129 (2001), 1195-1197
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MathSciNet review: 1709762

A bifurcation result for harmonic maps from an annulus to $S^{2}$ with not symmetric boundary data

C. Greco.
Proc. Amer. Math. Soc. 129 (2001), 1199-1206
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MathSciNet review: 1709752

The Mitchell-Richter filtration of loops on Stiefel manifolds stably splits

Greg Arone.
Proc. Amer. Math. Soc. 129 (2001), 1207-1211
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MathSciNet review: 1814154

Une preuve courte du principe de Selberg pour un groupe $p$-adique

J.-F. Dat.
Proc. Amer. Math. Soc. 129 (2001), 1213-1217
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MathSciNet review: 1814155

A result about a selection problem of Michael

Francis Jordan and Sam B. Nadler Jr..
Proc. Amer. Math. Soc. 129 (2001), 1219-1228
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MathSciNet review: 1707150

On the simplicial volumes of fiber bundles

M. Hoster and D. Kotschick.
Proc. Amer. Math. Soc. 129 (2001), 1229-1232
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MathSciNet review: 1709754

On the Grushin operator and hyperbolic symmetry

William Beckner.
Proc. Amer. Math. Soc. 129 (2001), 1233-1246
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MathSciNet review: 1709740

On fiber-preserving isotopies of surface homeomorphisms

Terry Fuller.
Proc. Amer. Math. Soc. 129 (2001), 1247-1254
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MathSciNet review: 1709751

Erratum to “Injective factorization of holomorphic mappings”

Manuel González and Joaquín M. Gutiérrez.
Proc. Amer. Math. Soc. 129 (2001), 1255-1256
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MathSciNet review: 1814156