Proceedings of the American Mathematical Society

Contents of Volume 66, Number 1
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Schur multipliers of some finite nilpotent groups

David A. Jackson

Proc. Amer. Math. Soc. 66 (1977), 1-5

DOI: https://doi.org/10.1090/S0002-9939-1977-0460459-8

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When is the free product of lattices complete?

George Grätzer and David Kelly

Proc. Amer. Math. Soc. 66 (1977), 6-8

DOI: https://doi.org/10.1090/S0002-9939-1977-0460199-5

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On $\pi ’$-closure of $\pi$-homogeneous groups

Pamela Ferguson

Proc. Amer. Math. Soc. 66 (1977), 9-12

DOI: https://doi.org/10.1090/S0002-9939-1977-0450397-9

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On a theorem of Posner

Mansoor Ahmad

Proc. Amer. Math. Soc. 66 (1977), 13-16

DOI: https://doi.org/10.1090/S0002-9939-1977-0447348-X

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A metrizable cancellative semigroup without translation invariant metric

Przemysław Kranz and Mai Guo

Proc. Amer. Math. Soc. 66 (1977), 17-19

DOI: https://doi.org/10.1090/S0002-9939-1977-0450452-3

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Some explicitly invertible Toeplitz operators on the quarter-plane

James Radlow

Proc. Amer. Math. Soc. 66 (1977), 20-22

DOI: https://doi.org/10.1090/S0002-9939-1977-0454716-9

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Extension of invariant linear functionals

Ky Fan

Proc. Amer. Math. Soc. 66 (1977), 23-29

DOI: https://doi.org/10.1090/S0002-9939-1977-0458111-8

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Dilations on involution semigroups

F. H. Szafraniec

Proc. Amer. Math. Soc. 66 (1977), 30-32

DOI: https://doi.org/10.1090/S0002-9939-1977-0473873-1

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A class of one-parameter nonlinear semigroups with differentiable approximating semigroups

G. Edgar Parker

Proc. Amer. Math. Soc. 66 (1977), 33-37

DOI: https://doi.org/10.1090/S0002-9939-1977-0482445-4

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A necessary and sufficient condition that a function on the maximal ideal space of a Banach algebra be a multiplier

James A. Wood

Proc. Amer. Math. Soc. 66 (1977), 38-40

DOI: https://doi.org/10.1090/S0002-9939-1977-0450979-4

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A unique continuation theorem involving a degenerate parabolic operator

Alan V. Lair

Proc. Amer. Math. Soc. 66 (1977), 41-45

DOI: https://doi.org/10.1090/S0002-9939-1977-0466968-X

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Cluster sets on open Riemann surfaces

Mikio Niimura

Proc. Amer. Math. Soc. 66 (1977), 46-48

DOI: https://doi.org/10.1090/S0002-9939-1977-0457730-2

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Some counterexamples concerning intrinsic distances

Theodore J. Barth

Proc. Amer. Math. Soc. 66 (1977), 49-53

DOI: https://doi.org/10.1090/S0002-9939-1977-0454078-7

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A new proof of Caristi’s fixed point theorem

Jerrold Siegel

Proc. Amer. Math. Soc. 66 (1977), 54-56

DOI: https://doi.org/10.1090/S0002-9939-1977-0458403-2

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Ideal boundaries of a Riemann surface for the equation $\Delta u=Pu$

J. L. Schiff

Proc. Amer. Math. Soc. 66 (1977), 57-61

DOI: https://doi.org/10.1090/S0002-9939-1977-0450544-9

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Conditions for generating a nonvanishing bounded analytic function

J. H. Mantel

Proc. Amer. Math. Soc. 66 (1977), 62-64

DOI: https://doi.org/10.1090/S0002-9939-1977-0457732-6

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On the twenty-ninth question of Allen Shields

Joseph G. Stampfli

Proc. Amer. Math. Soc. 66 (1977), 65-68

DOI: https://doi.org/10.1090/S0002-9939-1977-0458226-4

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Fixed point theorems for mappings of nonexpansive type

Teck-Cheong Lim

Proc. Amer. Math. Soc. 66 (1977), 69-74

DOI: https://doi.org/10.1090/S0002-9939-1977-0473935-9

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A superposition theorem for bounded continuous functions

Stephen Demko

Proc. Amer. Math. Soc. 66 (1977), 75-78

DOI: https://doi.org/10.1090/S0002-9939-1977-0457651-5

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On asymptotic properties of several classes of operators

Stephen L. Campbell and Ralph Gellar

Proc. Amer. Math. Soc. 66 (1977), 79-84

DOI: https://doi.org/10.1090/S0002-9939-1977-0461187-5

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The domain of univalence of certain families of rational functions

A. W. Goodman

Proc. Amer. Math. Soc. 66 (1977), 85-90

DOI: https://doi.org/10.1090/S0002-9939-1977-0584957-1

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Unitary parts of contractive Hankel matrices

Jeffrey R. Butz

Proc. Amer. Math. Soc. 66 (1977), 91-94

DOI: https://doi.org/10.1090/S0002-9939-1977-0461194-2

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Unitary parts of generalized Toeplitz operators

Jeffrey R. Butz

Proc. Amer. Math. Soc. 66 (1977), 95-98

DOI: https://doi.org/10.1090/S0002-9939-1977-0454695-4

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Operators in the commutant of a reductive algebra

Robert L. Moore

Proc. Amer. Math. Soc. 66 (1977), 99-104

DOI: https://doi.org/10.1090/S0002-9939-1977-0454730-3

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Successive derivatives of entire functions

Simon Hellerstein and Jack Williamson

Proc. Amer. Math. Soc. 66 (1977), 105-108

DOI: https://doi.org/10.1090/S0002-9939-1977-0460637-8

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The hyperbolicity of the complement of $2n+1$ hyperplanes in general position in $P_{n}$ and related results

Mark L. Green

Proc. Amer. Math. Soc. 66 (1977), 109-113

DOI: https://doi.org/10.1090/S0002-9939-1977-0457790-9

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The Ising model limit of $\phi ^{4}$ lattice fields

Jay Rosen

Proc. Amer. Math. Soc. 66 (1977), 114-118

DOI: https://doi.org/10.1090/S0002-9939-1977-0469019-6

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A Helly type theorem on the sphere

Meir Katchalski

Proc. Amer. Math. Soc. 66 (1977), 119-122

DOI: https://doi.org/10.1090/S0002-9939-1977-0470868-9

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Sums of independent random variables and the Burkholder transforms

J.-P. Gabriel

Proc. Amer. Math. Soc. 66 (1977), 123-127

DOI: https://doi.org/10.1090/S0002-9939-1977-0451392-6

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On the existence of $\omega$-points

Andrzej Szymański

Proc. Amer. Math. Soc. 66 (1977), 128-130

DOI: https://doi.org/10.1090/S0002-9939-1977-0458395-6

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Aspherical generators of unoriented cobordism

David C. Royster

Proc. Amer. Math. Soc. 66 (1977), 131-137

DOI: https://doi.org/10.1090/S0002-9939-1977-0448373-5

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On the cardinality of a topological space

Arthur Charlesworth

Proc. Amer. Math. Soc. 66 (1977), 138-142

DOI: https://doi.org/10.1090/S0002-9939-1977-0451184-8

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On the orbit types in a circle action

Elliott Stein

Proc. Amer. Math. Soc. 66 (1977), 143-147

DOI: https://doi.org/10.1090/S0002-9939-1977-0451271-4

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The Lefschetz fixed point theorem for compact groups

Ronald J. Knill

Proc. Amer. Math. Soc. 66 (1977), 148-152

DOI: https://doi.org/10.1090/S0002-9939-1977-0454962-4

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Independence theories and generalized zero-one laws

Lawrence Neff Stout

Proc. Amer. Math. Soc. 66 (1977), 153-158

DOI: https://doi.org/10.1090/S0002-9939-1977-0515144-0

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Open and uniformly open relations

P. Mah and S. A. Naimpally

Proc. Amer. Math. Soc. 66 (1977), 159-166

DOI: https://doi.org/10.1090/S0002-9939-1977-0454925-9

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The class of compact* spaces is productive and closed hereditary

W. Govaerts

Proc. Amer. Math. Soc. 66 (1977), 167-168

DOI: https://doi.org/10.1090/S0002-9939-1977-0461432-6

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The index of a holomorphic mapping and the index theorem

Tôru Ishihara

Proc. Amer. Math. Soc. 66 (1977), 169-174

DOI: https://doi.org/10.1090/S0002-9939-1977-0494249-7

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Canonical objects in Kirillov theory on nilpotent Lie groups

Richard C. Penney

Proc. Amer. Math. Soc. 66 (1977), 175-178

DOI: https://doi.org/10.1090/S0002-9939-1977-0453922-7

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Distinct sums over subsets

F. Hanson, J. M. Steele and F. Stenger

Proc. Amer. Math. Soc. 66 (1977), 179-180

DOI: https://doi.org/10.1090/S0002-9939-1977-0447167-4

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Sticky arcs in $E^{n}$ $(n\geq 4)$

David G. Wright

Proc. Amer. Math. Soc. 66 (1977), 181-182

DOI: https://doi.org/10.1090/S0002-9939-1977-0515648-0

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The range of a vector measure has the Banach-Saks property

R. Anantharaman

Proc. Amer. Math. Soc. 66 (1977), 183-184

DOI: https://doi.org/10.1090/S0002-9939-1977-0480931-4

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The numerical range and the essential numerical range

J. P. Williams

Proc. Amer. Math. Soc. 66 (1977), 185-186

DOI: https://doi.org/10.1090/S0002-9939-1977-0458203-3

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A nonspectral Birkhoff-regular differential operator

Philip W. Walker

Proc. Amer. Math. Soc. 66 (1977), 187-188

DOI: https://doi.org/10.1090/S0002-9939-1977-0450669-8

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