Contents of Volume 18, Number 6

All articles in this issue are freely accessible.

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On strong Riesz summability factors of infinite series. I

J. S. Ratti.
Proc. Amer. Math. Soc. 18 (1967), 959-966
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MathSciNet review: 0218783

An asymptotic phase for a Sturm-Liouville operator with unbounded potential

Richard C. Gilbert.
Proc. Amer. Math. Soc. 18 (1967), 967-973
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MathSciNet review: 0224891

Entire functions of bounded index

Fred Gross.
Proc. Amer. Math. Soc. 18 (1967), 974-980
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MathSciNet review: 0218564

Basic sets of polynomials for generalized Beltrami and Euler-Poisson-Darboux equations and their iterates

E. P. Miles and Eutiquio C. Young.
Proc. Amer. Math. Soc. 18 (1967), 981-986
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MathSciNet review: 0218771

Fixed points and openness in a locally convex space

Nguyen-Xuan Loc.
Proc. Amer. Math. Soc. 18 (1967), 987-991
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MathSciNet review: 0217659

Some identities related to Pólya’s property $W$ for linear differential equations

Anton Zettl.
Proc. Amer. Math. Soc. 18 (1967), 992-994
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MathSciNet review: 0222370

A mean value property of elliptic equations with constant coefficients

Anil K. Bose.
Proc. Amer. Math. Soc. 18 (1967), 995-996
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MathSciNet review: 0218747

Existence, uniqueness, and spectral properties of nonlinear eigenvalue problems

Donald S. Cohen.
Proc. Amer. Math. Soc. 18 (1967), 997-999
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MathSciNet review: 0218649

Some properties of Hilbert scales

Robert Bonic.
Proc. Amer. Math. Soc. 18 (1967), 1000-1003
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MathSciNet review: 0230115

Points of minimum norm on smooth surfaces in Banach spaces

Robert Bonic.
Proc. Amer. Math. Soc. 18 (1967), 1004-1005
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MathSciNet review: 0225162

Existence theory for certain ordinary differential equations with a monotone singularity

Keith Miller.
Proc. Amer. Math. Soc. 18 (1967), 1006-1008
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MathSciNet review: 0226082

Completeness in finite algebras with a single operation

G. Rousseau.
Proc. Amer. Math. Soc. 18 (1967), 1009-1013
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MathSciNet review: 0217002

Various types of norm-determining manifolds

B. E. Wilder.
Proc. Amer. Math. Soc. 18 (1967), 1014-1019
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MathSciNet review: 0217572

A note on the lower derivate of a set function and semihereditary systems of sets

W. F. Pfeffer.
Proc. Amer. Math. Soc. 18 (1967), 1020-1025
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MathSciNet review: 0218503

Extreme points of some convex subsets of $L^{1}(0,1)$

John V. Ryff.
Proc. Amer. Math. Soc. 18 (1967), 1026-1034
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MathSciNet review: 0217586

Some theorems concerning the continuity of algebra homomorphisms

Bruce Alan Barnes.
Proc. Amer. Math. Soc. 18 (1967), 1035-1038
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MathSciNet review: 0220058

Groups and semigroups with solvable word problems

B. H. Mayoh.
Proc. Amer. Math. Soc. 18 (1967), 1038-1039
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MathSciNet review: 0228571

Symmetric maximal ideals in $M(G)$

B. E. Johnson.
Proc. Amer. Math. Soc. 18 (1967), 1040-1044
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MathSciNet review: 0218839

Stability of bases in complete barrelled spaces

L. J. Weill.
Proc. Amer. Math. Soc. 18 (1967), 1045-1050
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MathSciNet review: 0217553

A version of the Lévy-Baxter theorem for the increments of Brownian motion of several parameters

Simeon M. Berman.
Proc. Amer. Math. Soc. 18 (1967), 1051-1055
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MathSciNet review: 0222958

On a theorem of Haar

J. J. Price.
Proc. Amer. Math. Soc. 18 (1967), 1056-1057
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MathSciNet review: 0218823

Existence of finite invariant measures for Markov processes

V. E. Beneš.
Proc. Amer. Math. Soc. 18 (1967), 1058-1061
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MathSciNet review: 0219137

On isomorphisms with small bound

Michael Cambern.
Proc. Amer. Math. Soc. 18 (1967), 1062-1066
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MathSciNet review: 0217580

Existence conditions for the Lane integral

Keith P. Smith and Fred M. Wright.
Proc. Amer. Math. Soc. 18 (1967), 1067-1073
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MathSciNet review: 0217235

On the hyperspace of subcontinua of the pseudoarc

William R. R. Transue.
Proc. Amer. Math. Soc. 18 (1967), 1074-1075
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MathSciNet review: 0222851

A note on a cellularity theorem by Doyle

D. G. Stewart.
Proc. Amer. Math. Soc. 18 (1967), 1076-1077
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MathSciNet review: 0227963

A remark on the Brown-Casler mapping theorem

D. A. Moran.
Proc. Amer. Math. Soc. 18 (1967), 1078
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MathSciNet review: 0224076

Note on the annulus conjecture

W. A. LaBach.
Proc. Amer. Math. Soc. 18 (1967), 1079
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MathSciNet review: 0217800

Retraction in $m$-paracompact spaces

Vincent J. Mancuso.
Proc. Amer. Math. Soc. 18 (1967), 1080-1083
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MathSciNet review: 0217762

Metrization of proximity spaces

Solomon Leader.
Proc. Amer. Math. Soc. 18 (1967), 1084-1088
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MathSciNet review: 0217757

Stationary point free group actions

R. E. Stong.
Proc. Amer. Math. Soc. 18 (1967), 1089-1092
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MathSciNet review: 0217806

Compactness of mappings on products of locally connected generalized continua

R. F. Dickman.
Proc. Amer. Math. Soc. 18 (1967), 1093-1094
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MathSciNet review: 0217764

On periodicity in limit sets

James W. England.
Proc. Amer. Math. Soc. 18 (1967), 1095-1099
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MathSciNet review: 0219049

Isomorphisms between semigroups of integers

Page Painter.
Proc. Amer. Math. Soc. 18 (1967), 1100-1101
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MathSciNet review: 0219645

Global dimension of Artinian rings

Abraham Zaks.
Proc. Amer. Math. Soc. 18 (1967), 1102-1106
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MathSciNet review: 0217112

Fixed points and stable subgroups of algebraic group automorphisms

D. J. Winter.
Proc. Amer. Math. Soc. 18 (1967), 1107-1113
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MathSciNet review: 0220739

Nonhereditary semisimple classes

W. G. Leavitt and E. P. Armendariz.
Proc. Amer. Math. Soc. 18 (1967), 1114-1117
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MathSciNet review: 0220786

On cohomological triviality

H. Onishi.
Proc. Amer. Math. Soc. 18 (1967), 1117-1118
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MathSciNet review: 0217153

Groups of elliptic linear fractional transformations

R. C. Lyndon and J. L. Ullman.
Proc. Amer. Math. Soc. 18 (1967), 1119-1124
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MathSciNet review: 0222182

On the analog of Littlewood’s problem in power series fields

R. T. Bumby.
Proc. Amer. Math. Soc. 18 (1967), 1125-1127
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MathSciNet review: 0217021

A lower bound for permanents of $(0,1)$-matrices

Henryk Minc.
Proc. Amer. Math. Soc. 18 (1967), 1128-1132
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MathSciNet review: 0220610

Commutative rings over which every module has a maximal submodule

Ross M. Hamsher.
Proc. Amer. Math. Soc. 18 (1967), 1133-1137
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MathSciNet review: 0217059

A note on the quotient field of the domain $D[[X]]$

Robert Gilbert.
Proc. Amer. Math. Soc. 18 (1967), 1138-1140
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MathSciNet review: 0217060

Errata, volume 16; Errata, volume 17; Errata, volume 18

Proc. Amer. Math. Soc. 18 (1967), 1141-1143
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Errata to: “An approximation theorem for a class of operators”

G. K. Leaf.
Proc. Amer. Math. Soc. 18 (1967), 1141-1142
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MathSciNet review: 0216325

Errata to: “An existence theorem for difference polynomials”

R. M. Cohn.
Proc. Amer. Math. Soc. 18 (1967), 1142-1143
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MathSciNet review: 0217050

Errata to: “On the center of the group of a link”

Kunio Murasugi.
Proc. Amer. Math. Soc. 18 (1967), 1142
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MathSciNet review: 0218435