Contents of Volume 103, Number 4

All articles in this issue are freely accessible.

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Elementary divisor theorem for noncommutative PIDs

Robert M. Guralnick, Lawrence S. Levy and Charles Odenthal.
Proc. Amer. Math. Soc. 103 (1988), 1003-1011
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MathSciNet review: 954973

Nontrivial uses of trivial rings

Fred Richman.
Proc. Amer. Math. Soc. 103 (1988), 1012-1014
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MathSciNet review: 954974

Completeness theorems for universal and implicational logics of algebras via congruences

Robert W. Quackenbush.
Proc. Amer. Math. Soc. 103 (1988), 1015-1021
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MathSciNet review: 954975

Grothendieck groups of algebras with nilpotent annihilators

Maurice Auslander and Idun Reiten.
Proc. Amer. Math. Soc. 103 (1988), 1022-1024
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MathSciNet review: 954976

A simple proof of Gabber’s theorem on projective modules over a localized local ring

Richard G. Swan.
Proc. Amer. Math. Soc. 103 (1988), 1025-1030
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MathSciNet review: 954977

Imbedding nondegenerate Jordan algebras in semiprimitive algebras

W. S. Martindale and K. McCrimmon.
Proc. Amer. Math. Soc. 103 (1988), 1031-1036
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MathSciNet review: 954978

The number of generators of modules over polynomial rings

Gennady Lyubeznik.
Proc. Amer. Math. Soc. 103 (1988), 1037-1040
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MathSciNet review: 954979

Elementary equivalence and profinite completions: a characterization of finitely generated abelian-by-finite groups

Francis Oger.
Proc. Amer. Math. Soc. 103 (1988), 1041-1048
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MathSciNet review: 954980

Zeros of diagonal equations over finite fields

Da Qing Wan.
Proc. Amer. Math. Soc. 103 (1988), 1049-1052
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MathSciNet review: 954981

Modular group algebras of $N$-groups

William Ullery.
Proc. Amer. Math. Soc. 103 (1988), 1053-1057
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MathSciNet review: 954982

Finite extensions of rings

Barbara Cortzen and Lance W. Small.
Proc. Amer. Math. Soc. 103 (1988), 1058-1062
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MathSciNet review: 954983

Convergence and divergence almost everywhere of spherical means for radial functions

Yūichi Kanjin.
Proc. Amer. Math. Soc. 103 (1988), 1063-1069
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MathSciNet review: 954984

An extension of Ando-Krieger’s theorem to ordered Banach spaces

V. Caselles.
Proc. Amer. Math. Soc. 103 (1988), 1070-1072
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MathSciNet review: 954985

Classification of one-dimensional hypergroups

Alan L. Schwartz.
Proc. Amer. Math. Soc. 103 (1988), 1073-1081
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MathSciNet review: 954986

Analytic functions with rectifiable radial images

Marvin Ortel and Walter Schneider.
Proc. Amer. Math. Soc. 103 (1988), 1082-1086
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MathSciNet review: 954987

Banach space properties of Ciesielski-Pol’s $C(K)$ space

G. Godefroy, J. Pelant, J. H. M. Whitfield and V. Zizler.
Proc. Amer. Math. Soc. 103 (1988), 1087-1093
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MathSciNet review: 954988

Starlikeness and convexity from integral means of the derivative

Shinji Yamashita.
Proc. Amer. Math. Soc. 103 (1988), 1094-1098
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MathSciNet review: 954989

A projection formula for the Askey-Wilson polynomials and an application

Mizan Rahman.
Proc. Amer. Math. Soc. 103 (1988), 1099-1107
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MathSciNet review: 954990

Cesàro and Borel-type summability

David Borwein and Tom Markovich.
Proc. Amer. Math. Soc. 103 (1988), 1108-1112
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MathSciNet review: 954991

Invariant Lagrangian subspaces

Lars Andersson.
Proc. Amer. Math. Soc. 103 (1988), 1113-1119
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MathSciNet review: 954992

Linear independence of iterates and entire solutions of functional equations

Jens Peter Reus Christensen and Pal Fischer.
Proc. Amer. Math. Soc. 103 (1988), 1120-1124
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MathSciNet review: 954993

Joint continuity of measurable biadditive mappings

Jens Peter Reus Christensen and Pal Fischer.
Proc. Amer. Math. Soc. 103 (1988), 1125-1128
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MathSciNet review: 929436

Random approximations and random fixed point theorems for non-self-maps

Tzu-Chu Lin.
Proc. Amer. Math. Soc. 103 (1988), 1129-1135
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MathSciNet review: 954994

Compactness of the $\overline∂$-Neumann operator

Steven G. Krantz.
Proc. Amer. Math. Soc. 103 (1988), 1136-1138
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MathSciNet review: 954995

Characterizing shape preserving $L_{1}$-approximation

D. Zwick.
Proc. Amer. Math. Soc. 103 (1988), 1139-1146
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MathSciNet review: 954996

A commutator estimate for pseudo-differential operators

Jürgen Marschall.
Proc. Amer. Math. Soc. 103 (1988), 1147-1150
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MathSciNet review: 954997

Nonstandard methods for families of $𝜏$-smooth probability measures

Dieter Landers and Lothar Rogge.
Proc. Amer. Math. Soc. 103 (1988), 1151-1156
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MathSciNet review: 954998

An upper bound for the projection constant

D. R. Lewis.
Proc. Amer. Math. Soc. 103 (1988), 1157-1160
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MathSciNet review: 954999

A note on the generalized Riemann integral

Washek F. Pfeffer.
Proc. Amer. Math. Soc. 103 (1988), 1161-1166
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MathSciNet review: 955000

A note on extreme points of subordination classes

D. J. Hallenbeck.
Proc. Amer. Math. Soc. 103 (1988), 1167-1170
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MathSciNet review: 955001

An extension theorem for normal functions

Pentti Järvi.
Proc. Amer. Math. Soc. 103 (1988), 1171-1174
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MathSciNet review: 955002

Singular integrals in product domains and the method of rotations

Donald Krug.
Proc. Amer. Math. Soc. 103 (1988), 1175-1178
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MathSciNet review: 955003

The differentiability of the hairs of $exp(Z)$

M. Viana da Silva.
Proc. Amer. Math. Soc. 103 (1988), 1179-1184
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MathSciNet review: 955004

Intersection of Lebesgue spaces $L_{1}$ and $L_{2}$

S. J. Dilworth.
Proc. Amer. Math. Soc. 103 (1988), 1185-1188
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MathSciNet review: 955005

The convolution of Radon measures

H. Kharaghani.
Proc. Amer. Math. Soc. 103 (1988), 1189-1191
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MathSciNet review: 955006

Approximating PA

F. G. J. Wiid.
Proc. Amer. Math. Soc. 103 (1988), 1192-1195
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MathSciNet review: 955007

Automatic continuity of concave functions

Roger Howe.
Proc. Amer. Math. Soc. 103 (1988), 1196-1200
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MathSciNet review: 955008

Closed convex hypersurfaces with curvature restrictions

Rolf Schneider.
Proc. Amer. Math. Soc. 103 (1988), 1201-1204
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MathSciNet review: 955009

A rigidity theorem for quaternionic-Kähler manifolds

Claude LeBrun.
Proc. Amer. Math. Soc. 103 (1988), 1205-1208
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MathSciNet review: 955010

Compact parallelizable four-dimensional symplectic and complex manifolds

Marisa Fernández, Mark J. Gotay and Alfred Gray.
Proc. Amer. Math. Soc. 103 (1988), 1209-1212
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MathSciNet review: 955011

Clear visibility and $L_{2}$ sets

N. Stavrakas.
Proc. Amer. Math. Soc. 103 (1988), 1213-1215
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MathSciNet review: 955012

Undefinable classes and definable elements in models of set theory and arithmetic

Ali Enayat.
Proc. Amer. Math. Soc. 103 (1988), 1216-1220
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MathSciNet review: 955013

An extension of the closed unbounded filter

Robert J. Mignone.
Proc. Amer. Math. Soc. 103 (1988), 1221-1225
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MathSciNet review: 955014

Paraproducts and commutators of martingale transforms

Rodrigo Bañuelos and Andrew G. Bennett.
Proc. Amer. Math. Soc. 103 (1988), 1226-1234
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MathSciNet review: 955015

A comparison principle for large deviations

John R. Baxter and Naresh C. Jain.
Proc. Amer. Math. Soc. 103 (1988), 1235-1240
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MathSciNet review: 955016

Occupation time and the Lebesgue measure of the range for a Lévy process

S. C. Port.
Proc. Amer. Math. Soc. 103 (1988), 1241-1248
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MathSciNet review: 955017

An asymptotic expansion for the expected number of real zeros of a random polynomial

J. Ernest Wilkins.
Proc. Amer. Math. Soc. 103 (1988), 1249-1258
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MathSciNet review: 955018

Factorization of measures and normal conditional distributions

A. Maitra and S. Ramakrishnan.
Proc. Amer. Math. Soc. 103 (1988), 1259-1267
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MathSciNet review: 955019

Congruence and one-dimensionality of metric spaces

Ludvik Janos.
Proc. Amer. Math. Soc. 103 (1988), 1268-1270
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MathSciNet review: 955020

Infinitesimal characterization of homogeneous bundles

Kirill Mackenzie.
Proc. Amer. Math. Soc. 103 (1988), 1271-1277
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MathSciNet review: 955021

A characterization of Lašnev spaces

H. H. Hung.
Proc. Amer. Math. Soc. 103 (1988), 1278-1280
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MathSciNet review: 955022

$\mathcal{L}$-manifolds and cone-dual maps

Sara Dragotti and Gaetano Magro.
Proc. Amer. Math. Soc. 103 (1988), 1281-1289
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MathSciNet review: 955023

Universal spaces for countable-dimensional metric spaces

Tatsuo Goto.
Proc. Amer. Math. Soc. 103 (1988), 1290-1292
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MathSciNet review: 955024

Fixed point sets of homeomorphisms of metric products

John R. Martin.
Proc. Amer. Math. Soc. 103 (1988), 1293-1298
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MathSciNet review: 955025

Integral Brown-Gitler spectra

Fred R. Cohen, Donald M. Davis, Paul G. Goerss and Mark E. Mahowald.
Proc. Amer. Math. Soc. 103 (1988), 1299-1304
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MathSciNet review: 955026

Absolute endpoints of chainable continua

Ira Rosenholtz.
Proc. Amer. Math. Soc. 103 (1988), 1305-1314
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MathSciNet review: 955027

Neighborhoods of points in codimension-one submanifolds lie in codimension-one spheres

Fredric D. Ancel.
Proc. Amer. Math. Soc. 103 (1988), 1315-1316
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MathSciNet review: 955028

Non-$G$-equivalent Moore $G$-spaces of the same type

Ryszard Doman.
Proc. Amer. Math. Soc. 103 (1988), 1317-1321
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MathSciNet review: 955029

Simultaneous systems of representatives for families of finite sets

Melvyn B. Nathanson.
Proc. Amer. Math. Soc. 103 (1988), 1322-1326
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MathSciNet review: 955030