Contents of Volume 122, Number 4

All articles in this issue are freely accessible.

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Idempotents in matrix rings

Christopher Barnett and Victor Camillo.
Proc. Amer. Math. Soc. 122 (1994), 965-969
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MathSciNet review: 1246513

On the Jacobian of the Klein curve

Despina T. Prapavessi.
Proc. Amer. Math. Soc. 122 (1994), 971-978
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MathSciNet review: 1212286

One-sided ideals and derivations of prime rings

Matej Brešar.
Proc. Amer. Math. Soc. 122 (1994), 979-983
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MathSciNet review: 1205483

The existence of flat covers

Richard Belshoff, Edgar E. Enochs and Jin Zhong Xu.
Proc. Amer. Math. Soc. 122 (1994), 985-991
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MathSciNet review: 1209416

On Minakshisundaram-Pleijel zeta functions of spheres

E. Carletti and G. Monti Bragadin.
Proc. Amer. Math. Soc. 122 (1994), 993-1001
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MathSciNet review: 1249872

The existence of bounded infinite $D$Tr-orbits

Shi Ping Liu and Rainer Schulz.
Proc. Amer. Math. Soc. 122 (1994), 1003-1005
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MathSciNet review: 1223516

Some more Mathieu group coverings in characteristic two

Shreeram S. Abhyankar and Ikkwon Yie.
Proc. Amer. Math. Soc. 122 (1994), 1007-1014
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MathSciNet review: 1239794

Detecting negative curvature in groups via local conditions

Paul Shawcroft.
Proc. Amer. Math. Soc. 122 (1994), 1015-1023
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MathSciNet review: 1249891

On the hyperbolicity and the Schottky property of complex spaces

Do Duc Thai.
Proc. Amer. Math. Soc. 122 (1994), 1025-1027
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MathSciNet review: 1232145

A converse of the volume-mean-value property for invariantly harmonic functions

Joaquim Bruna and Jacqueline Detraz.
Proc. Amer. Math. Soc. 122 (1994), 1029-1034
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MathSciNet review: 1209418

$L^{p}$-boundedness of the Hilbert transform and maximal function associated to flat plane curves

S. Ziesler.
Proc. Amer. Math. Soc. 122 (1994), 1035-1043
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MathSciNet review: 1213872

Support theorems for Radon transforms on higher rank symmetric spaces

Fulton Gonzalez and Eric Todd Quinto.
Proc. Amer. Math. Soc. 122 (1994), 1045-1052
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MathSciNet review: 1205492

Sums and products of cyclic operators

Pei Yuan Wu.
Proc. Amer. Math. Soc. 122 (1994), 1053-1063
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MathSciNet review: 1203995

Spatiality of isomorphisms between certain reflexive algebras

M. S. Lambrou and W. E. Longstaff.
Proc. Amer. Math. Soc. 122 (1994), 1065-1073
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MathSciNet review: 1216818

Mean value inequalities

F. H. Clarke and Yu. S. Ledyaev.
Proc. Amer. Math. Soc. 122 (1994), 1075-1083
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MathSciNet review: 1212282

The Hankel transformation on $M’_{𝜇}$ and its representation

E. L. Koh and C. K. Li.
Proc. Amer. Math. Soc. 122 (1994), 1085-1094
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MathSciNet review: 1207539

Locally uniformly continuous functions

Alexander J. Izzo.
Proc. Amer. Math. Soc. 122 (1994), 1095-1100
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MathSciNet review: 1216816

On the modular equations of degree $3$

Li-Chien Shen.
Proc. Amer. Math. Soc. 122 (1994), 1101-1114
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MathSciNet review: 1212287

A construction related to the cosine problem

Mihail N. Kolountzakis.
Proc. Amer. Math. Soc. 122 (1994), 1115-1119
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MathSciNet review: 1243831

Ideals of operators strictly singular on subspaces

Michael J. Meyer.
Proc. Amer. Math. Soc. 122 (1994), 1121-1123
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MathSciNet review: 1219729

On the $K$-groups of certain $C^{*}$-algebras used in $E$-theory

Gabriel Nagy.
Proc. Amer. Math. Soc. 122 (1994), 1125-1131
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MathSciNet review: 1209099

Crossed products by semigroups of endomorphisms and the Toeplitz algebras of ordered groups

Sriwulan Adji, Marcelo Laca, May Nilsen and Iain Raeburn.
Proc. Amer. Math. Soc. 122 (1994), 1133-1141
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MathSciNet review: 1215024

On uniqueness sets for areally mean $p$-valent functions

Enrique Villamor.
Proc. Amer. Math. Soc. 122 (1994), 1143-1151
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MathSciNet review: 1211592

Surfaces minimizing area plus length of singular curves

Frank Morgan.
Proc. Amer. Math. Soc. 122 (1994), 1153-1161
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MathSciNet review: 1231039

Some estimates of Kobayashi metric in the normal direction

Siqi Fu.
Proc. Amer. Math. Soc. 122 (1994), 1163-1169
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MathSciNet review: 1231034

A note on endomorphisms of irrational rotation $C^{*}$-algebras

Kazunori Kodaka.
Proc. Amer. Math. Soc. 122 (1994), 1171-1172
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MathSciNet review: 1211581

Pathwise connectivity of the spatial numerical range

Tofik Y. Kuliyev.
Proc. Amer. Math. Soc. 122 (1994), 1173-1174
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MathSciNet review: 1211582

Fixed point theorem for nonexpansive semigroup on Banach space

Wataru Takahashi and Doo Hoan Jeong.
Proc. Amer. Math. Soc. 122 (1994), 1175-1179
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MathSciNet review: 1223268

Hardy inequalities and imbeddings in domains generalizing $C^{0,𝜆}$ domains

Andreas Wannebo.
Proc. Amer. Math. Soc. 122 (1994), 1181-1190
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MathSciNet review: 1211593

An operator bound related to Feynman-Kac formulae

Brian Jefferies.
Proc. Amer. Math. Soc. 122 (1994), 1191-1202
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MathSciNet review: 1212283

Hecke algebra on homogeneous trees and relations with Toeplitz and Hankel operators

Janusz Wysoczański.
Proc. Amer. Math. Soc. 122 (1994), 1203-1210
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MathSciNet review: 1213871

Surfaces of constant mean curvature $1$ in $H^{3}$ and algebraic curves on a quadric

A. J. Small.
Proc. Amer. Math. Soc. 122 (1994), 1211-1220
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MathSciNet review: 1209429

A note on discriminantal arrangements

Michael Falk.
Proc. Amer. Math. Soc. 122 (1994), 1221-1227
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MathSciNet review: 1209098

Ricci tensors of real hypersurfaces in a complex projective space

Sadahiro Maeda.
Proc. Amer. Math. Soc. 122 (1994), 1229-1235
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MathSciNet review: 1209425

Permutations and presentations

Peter Cholak and Rod Downey.
Proc. Amer. Math. Soc. 122 (1994), 1237-1249
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MathSciNet review: 1209095

Bootstrap sample size in nonregular cases

Jun Shao.
Proc. Amer. Math. Soc. 122 (1994), 1251-1262
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MathSciNet review: 1227529

Bias and variance reduction in estimation of model dimension

Wei-Yin Loh and Xiaodong Zheng.
Proc. Amer. Math. Soc. 122 (1994), 1263-1272
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MathSciNet review: 1211583

Wandering domains for infinitely renormalizable diffeomorphisms of the disk

Christian Bonatti, Jean-Marc Gambaudo, Jean-Marie Lion and Charles Tresser.
Proc. Amer. Math. Soc. 122 (1994), 1273-1278
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MathSciNet review: 1223264

Profinite groups with restricted centralizers

Aner Shalev.
Proc. Amer. Math. Soc. 122 (1994), 1279-1284
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MathSciNet review: 1239805

Two-generator cable knots are tunnel one

Steven A. Bleiler.
Proc. Amer. Math. Soc. 122 (1994), 1285-1287
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MathSciNet review: 1242075

All autohomeomorphisms of connected Menger manifolds are stable

Katsuro Sakai.
Proc. Amer. Math. Soc. 122 (1994), 1289-1291
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MathSciNet review: 1273522