Proceedings of the American Mathematical Society

Contents of Volume 118, Number 3
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The structure of some right Noetherian rings with Krull dimension one

C. L. Wangneo

Proc. Amer. Math. Soc. 118 (1993), 677-680

DOI: https://doi.org/10.1090/S0002-9939-1993-1127145-1

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Fixed points of finite groups of free group automorphisms

Tad White

Proc. Amer. Math. Soc. 118 (1993), 681-688

DOI: https://doi.org/10.1090/S0002-9939-1993-1164152-7

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Is a semidirect product of groups necessarily a group?

Gary F. Birkenmeier, C. Brad Davis, Kevin J. Reeves and Sihai Xiao

Proc. Amer. Math. Soc. 118 (1993), 689-692

DOI: https://doi.org/10.1090/S0002-9939-1993-1157998-2

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The Cayley graphs of Coxeter and Artin groups

Carl Droms and Herman Servatius

Proc. Amer. Math. Soc. 118 (1993), 693-698

DOI: https://doi.org/10.1090/S0002-9939-1993-1140668-4

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On maximal $k$-ideals of semirings

M. K. Sen and M. R. Adhikari

Proc. Amer. Math. Soc. 118 (1993), 699-703

DOI: https://doi.org/10.1090/S0002-9939-1993-1132423-6

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A remark on curves covered by coverings

Marc Coppens

Proc. Amer. Math. Soc. 118 (1993), 705-708

DOI: https://doi.org/10.1090/S0002-9939-1993-1131033-4

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A simple formula for cyclic duality

A. D. Elmendorf

Proc. Amer. Math. Soc. 118 (1993), 709-711

DOI: https://doi.org/10.1090/S0002-9939-1993-1143017-0

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The even $C^ *$ Clifford algebra

P. L. Robinson

Proc. Amer. Math. Soc. 118 (1993), 713-714

DOI: https://doi.org/10.1090/S0002-9939-1993-1131039-5

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An optimization of the Besicovitch covering

Peter A. Loeb

Proc. Amer. Math. Soc. 118 (1993), 715-716

DOI: https://doi.org/10.1090/S0002-9939-1993-1132415-7

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A sharp bound for the regularity index of fat points in general position

M. V. Catalisano, N. V. Trung and G. Valla

Proc. Amer. Math. Soc. 118 (1993), 717-724

DOI: https://doi.org/10.1090/S0002-9939-1993-1146859-0

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Homogenized $\mathfrak {sl}(2)$

Lieven Le Bruyn and S. P. Smith

Proc. Amer. Math. Soc. 118 (1993), 725-730

DOI: https://doi.org/10.1090/S0002-9939-1993-1136235-9

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An Engel condition with derivation

Charles Lanski

Proc. Amer. Math. Soc. 118 (1993), 731-734

DOI: https://doi.org/10.1090/S0002-9939-1993-1132851-9

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An application of set theory to the torsion product of abelian groups

Patrick Keef

Proc. Amer. Math. Soc. 118 (1993), 735-738

DOI: https://doi.org/10.1090/S0002-9939-1993-1146863-2

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A note on Hilbert’s Theorem 90

Bao-Ping Jia and Larry Santoni

Proc. Amer. Math. Soc. 118 (1993), 739-744

DOI: https://doi.org/10.1090/S0002-9939-1993-1151813-9

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Free and locally free arrangements with a given intersection lattice

Sergey Yuzvinsky

Proc. Amer. Math. Soc. 118 (1993), 745-752

DOI: https://doi.org/10.1090/S0002-9939-1993-1160307-6

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On the number of $D\textrm {Tr}$-orbits containing directing modules

Lian Gang Peng and Jie Xiao

Proc. Amer. Math. Soc. 118 (1993), 753-756

DOI: https://doi.org/10.1090/S0002-9939-1993-1135078-X

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Homological invariants of powers of an ideal

Vijay Kodiyalam

Proc. Amer. Math. Soc. 118 (1993), 757-764

DOI: https://doi.org/10.1090/S0002-9939-1993-1156471-5

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$C^ \ast$-extreme points of some compact $C^ \ast$-convex sets

D. R. Farenick and Phillip B. Morenz

Proc. Amer. Math. Soc. 118 (1993), 765-775

DOI: https://doi.org/10.1090/S0002-9939-1993-1139466-7

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The fat locus of Hilbert schemes of points

Marc Coppens

Proc. Amer. Math. Soc. 118 (1993), 777-783

DOI: https://doi.org/10.1090/S0002-9939-1993-1145416-X

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On duals of smooth plane curves

Masaaki Homma

Proc. Amer. Math. Soc. 118 (1993), 785-790

DOI: https://doi.org/10.1090/S0002-9939-1993-1143223-5

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Restrictions to continuous functions and Boolean algebras

Ireneusz Recław

Proc. Amer. Math. Soc. 118 (1993), 791-796

DOI: https://doi.org/10.1090/S0002-9939-1993-1152289-8

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Crinkled functions and intersections with polynomials

A. M. Fink

Proc. Amer. Math. Soc. 118 (1993), 797-799

DOI: https://doi.org/10.1090/S0002-9939-1993-1132411-X

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The characteristic exponent of second-order linear differential equations with two irregular singular points

Wolfgang Bühring

Proc. Amer. Math. Soc. 118 (1993), 801-812

DOI: https://doi.org/10.1090/S0002-9939-1993-1169022-6

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An oscillation criterion for a forced second order linear differential equation

M. A. El-Sayed

Proc. Amer. Math. Soc. 118 (1993), 813-817

DOI: https://doi.org/10.1090/S0002-9939-1993-1154243-9

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A fixed point theorem in non-Archimedean vector spaces

C. Petalas and T. Vidalis

Proc. Amer. Math. Soc. 118 (1993), 819-821

DOI: https://doi.org/10.1090/S0002-9939-1993-1132421-2

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Simplicity of crossed products of $C^ *$-algebras

Sun Young Jang and Sa Ge Lee

Proc. Amer. Math. Soc. 118 (1993), 823-826

DOI: https://doi.org/10.1090/S0002-9939-1993-1132413-3

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Norm inequalities equivalent to Heinz inequality

Junichi Fujii, Masatoshi Fujii, Takayuki Furuta and Ritsuo Nakamoto

Proc. Amer. Math. Soc. 118 (1993), 827-830

DOI: https://doi.org/10.1090/S0002-9939-1993-1132412-1

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The commutant of a certain compression

William T. Ross

Proc. Amer. Math. Soc. 118 (1993), 831-837

DOI: https://doi.org/10.1090/S0002-9939-1993-1145951-4

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Polar decompositions of bounded linear functionals on operator subalgebras

Masaharu Kusuda

Proc. Amer. Math. Soc. 118 (1993), 839-843

DOI: https://doi.org/10.1090/S0002-9939-1993-1149973-9

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Invariant manifolds of hypercyclic vectors

Paul S. Bourdon

Proc. Amer. Math. Soc. 118 (1993), 845-847

DOI: https://doi.org/10.1090/S0002-9939-1993-1148021-4

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A counterexample to a Vitali type theorem with respect to Hausdorff content

Mark Melnikov and Joan Orobitg

Proc. Amer. Math. Soc. 118 (1993), 849-856

DOI: https://doi.org/10.1090/S0002-9939-1993-1137228-8

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Generalized spectrum and a problem of Apostol

Mostafa Mbekhta

Proc. Amer. Math. Soc. 118 (1993), 857-859

DOI: https://doi.org/10.1090/S0002-9939-1993-1145948-4

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On the entropy norm spaces and the Hardy space $\textrm {Re} H^ 1$

W. C. Lang

Proc. Amer. Math. Soc. 118 (1993), 861-863

DOI: https://doi.org/10.1090/S0002-9939-1993-1166359-1

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On Teichmüller contraction

Frederick P. Gardiner

Proc. Amer. Math. Soc. 118 (1993), 865-875

DOI: https://doi.org/10.1090/S0002-9939-1993-1152277-1

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Some special limits of Schottky groups

Daniel M. Gallo

Proc. Amer. Math. Soc. 118 (1993), 877-883

DOI: https://doi.org/10.1090/S0002-9939-1993-1148024-X

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A counterexample to the infinity version of the Hyers and Ulam stability theorem

Emanuele Casini and Pier Luigi Papini

Proc. Amer. Math. Soc. 118 (1993), 885-890

DOI: https://doi.org/10.1090/S0002-9939-1993-1152975-X

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Measures of noncompactness and upper semi-Fredholm perturbation theorems

Fernando Galaz-Fontes

Proc. Amer. Math. Soc. 118 (1993), 891-897

DOI: https://doi.org/10.1090/S0002-9939-1993-1151810-3

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An inequality for some nonnormal operators—extension to normal approximate eigenvalues

Masatoshi Fujii, Takayuki Furuta and Yūki Seo

Proc. Amer. Math. Soc. 118 (1993), 899-902

DOI: https://doi.org/10.1090/S0002-9939-1993-1152981-5

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Fourier inversion for piecewise smooth functions in several variables

Mark A. Pinsky

Proc. Amer. Math. Soc. 118 (1993), 903-910

DOI: https://doi.org/10.1090/S0002-9939-1993-1146865-6

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The Banach-Mazur game and generic existence of solutions to optimization problems

P. S. Kenderov and J. P. Revalski

Proc. Amer. Math. Soc. 118 (1993), 911-917

DOI: https://doi.org/10.1090/S0002-9939-1993-1137224-0

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On the Mazur-Ulam theorem and the Aleksandrov problem for unit distance preserving mappings

Themistocles M. Rassias and Peter Šemrl

Proc. Amer. Math. Soc. 118 (1993), 919-925

DOI: https://doi.org/10.1090/S0002-9939-1993-1111437-6

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A counterexample to Orlik’s conjecture

Paul H. Edelman and Victor Reiner

Proc. Amer. Math. Soc. 118 (1993), 927-929

DOI: https://doi.org/10.1090/S0002-9939-1993-1134624-X

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Identities of the natural representation of the infinitely based semigroup

Leonid Al’shanskii and Alexander Kushkuley

Proc. Amer. Math. Soc. 118 (1993), 931-937

DOI: https://doi.org/10.1090/S0002-9939-1993-1132406-6

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Shore points and dendrites

Víctor Neumann Lara and Isabel Puga-Espinosa

Proc. Amer. Math. Soc. 118 (1993), 939-942

DOI: https://doi.org/10.1090/S0002-9939-1993-1137230-6

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The Steenrod algebra action on generators of rings of invariants of subgroups of $\textrm {GL}_ n(\textbf {Z}/p\textbf {Z})$

Nondas E. Kechagias

Proc. Amer. Math. Soc. 118 (1993), 943-952

DOI: https://doi.org/10.1090/S0002-9939-1993-1152986-4

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Foliations of $E(5_ 2)$ and related knot complements

John Cantwell and Lawrence Conlon

Proc. Amer. Math. Soc. 118 (1993), 953-962

DOI: https://doi.org/10.1090/S0002-9939-1993-1151808-5

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Bordism classes of vector bundles over real projective spaces

Bruce F. Torrence

Proc. Amer. Math. Soc. 118 (1993), 963-969

DOI: https://doi.org/10.1090/S0002-9939-1993-1136239-6

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On the infimum of the Hausdorff and Vietoris topologies

S. Levi, R. Lucchetti and J. Pelant

Proc. Amer. Math. Soc. 118 (1993), 971-978

DOI: https://doi.org/10.1090/S0002-9939-1993-1165059-1

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Manifolds with pinched radial curvature

Yoshiroh Machigashira

Proc. Amer. Math. Soc. 118 (1993), 979-985

DOI: https://doi.org/10.1090/S0002-9939-1993-1136236-0

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There are many Ostaszewski spaces

Timothy J. LaBerge

Proc. Amer. Math. Soc. 118 (1993), 987-993

DOI: https://doi.org/10.1090/S0002-9939-1993-1137225-2

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On the rationalization of the circle

Carles Casacuberta

Proc. Amer. Math. Soc. 118 (1993), 995-1000

DOI: https://doi.org/10.1090/S0002-9939-1993-1176479-3

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A heat kernel characterization of asymptotic harmonicity

François Ledrappier

Proc. Amer. Math. Soc. 118 (1993), 1001-1004

DOI: https://doi.org/10.1090/S0002-9939-1993-1137226-4

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The chromatic convergence theorem and a tower in algebraic $K$-theory

J. E. McClure and R. E. Staffeldt

Proc. Amer. Math. Soc. 118 (1993), 1005-1012

DOI: https://doi.org/10.1090/S0002-9939-1993-1164148-5

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A generalization of Odlyzko’s conjecture: the coefficients of $(1-q)^ j/((1-q^ {2n})\cdots (1-q^ {2n+2j}))$ alternate in sign

Jane Friedman and Doron Zeilberger

Proc. Amer. Math. Soc. 118 (1993), 1013

DOI: https://doi.org/10.1090/S0002-9939-1993-1134625-1

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Erratum to: “Homotopy type of path spaces” [Proc. Amer. Math. Soc. 116 (1992), no. 1, 259–271; MR1097347 (92k:58019)]

Diane Kalish

Proc. Amer. Math. Soc. 118 (1993), 1015

DOI: https://doi.org/10.1090/S0002-9939-1993-1212280-X

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