Proceedings of the American Mathematical Society

Contents of Volume 27, Number 1
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Quaternions and binary quadratic forms

Bart Rice

Proc. Amer. Math. Soc. 27 (1971), 1-7

DOI: https://doi.org/10.1090/S0002-9939-1971-0266860-4

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Locally finite self-interchange graphs

Benjamin L. Schwartz and Lowell W. Beineke

Proc. Amer. Math. Soc. 27 (1971), 8-12

DOI: https://doi.org/10.1090/S0002-9939-1971-0289349-5

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Sets of lattice points which contain a maximal number of edges

G. F. Clements

Proc. Amer. Math. Soc. 27 (1971), 13-15

DOI: https://doi.org/10.1090/S0002-9939-1971-0270923-7

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On the structure of a finite solvable $K$-group

Marshall Kotzen

Proc. Amer. Math. Soc. 27 (1971), 16-18

DOI: https://doi.org/10.1090/S0002-9939-1971-0268268-4

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A determinantal inequality for projectors in a unitary space

D. Ž. Djoković

Proc. Amer. Math. Soc. 27 (1971), 19-23

DOI: https://doi.org/10.1090/S0002-9939-1971-0266944-0

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A note on extensions of free groups by torsion groups

Paul Hill

Proc. Amer. Math. Soc. 27 (1971), 24-28

DOI: https://doi.org/10.1090/S0002-9939-1971-0269736-1

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Torsionfree projective modules

Mark L. Teply

Proc. Amer. Math. Soc. 27 (1971), 29-34

DOI: https://doi.org/10.1090/S0002-9939-1971-0271146-8

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Sums and products of continued fractions

T. W. Cusick

Proc. Amer. Math. Soc. 27 (1971), 35-38

DOI: https://doi.org/10.1090/S0002-9939-1971-0269603-3

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Solution of the Hughes problem for finite $p$-groups of class $2p-2$.

I. D. Macdonald

Proc. Amer. Math. Soc. 27 (1971), 39-42

DOI: https://doi.org/10.1090/S0002-9939-1971-0271230-9

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A primary decomposition for torsion modules

J. S. Alin

Proc. Amer. Math. Soc. 27 (1971), 43-48

DOI: https://doi.org/10.1090/S0002-9939-1971-0274496-4

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On perfect group rings

S. M. Woods

Proc. Amer. Math. Soc. 27 (1971), 49-52

DOI: https://doi.org/10.1090/S0002-9939-1971-0271247-4

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Polynomial identity algebras with involution

Susan Montgomery

Proc. Amer. Math. Soc. 27 (1971), 53-56

DOI: https://doi.org/10.1090/S0002-9939-1971-0269695-1

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Rings with the contraction property

William J. Wickless

Proc. Amer. Math. Soc. 27 (1971), 57-60

DOI: https://doi.org/10.1090/S0002-9939-1971-0266954-3

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An exact solution of the nonlinear differential equation $\ddot y+p(t)y=q_{m} (t)/y^{2m-1}$

James L. Reid

Proc. Amer. Math. Soc. 27 (1971), 61-62

DOI: https://doi.org/10.1090/S0002-9939-1971-0269907-4

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Addendum to “On the Frattini subgroup”

John Cossey and Alice Whittemore

Proc. Amer. Math. Soc. 27 (1971), 63-64

DOI: https://doi.org/10.1090/S0002-9939-1971-0269744-0

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On the perturbability of the asymptotic manifold of a perturbed system of differential equations

G. Ladas, V. Lakshmikantham and S. Leela

Proc. Amer. Math. Soc. 27 (1971), 65-71

DOI: https://doi.org/10.1090/S0002-9939-1971-0274888-3

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On the invertibility of general Wiener-Hopf operators

John Reeder

Proc. Amer. Math. Soc. 27 (1971), 72-76

DOI: https://doi.org/10.1090/S0002-9939-1971-0267405-5

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Parallelizability revisited

Otomar Hájek

Proc. Amer. Math. Soc. 27 (1971), 77-84

DOI: https://doi.org/10.1090/S0002-9939-1971-0271925-7

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$\Omega$-explosions

J. Palis

Proc. Amer. Math. Soc. 27 (1971), 85-90

DOI: https://doi.org/10.1090/S0002-9939-1971-0270400-3

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Convolution measure algebras with involution

J. W. Baker

Proc. Amer. Math. Soc. 27 (1971), 91-96

DOI: https://doi.org/10.1090/S0002-9939-1971-0275064-0

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On the univalence of a certain integral

E. P. Merkes and D. J. Wright

Proc. Amer. Math. Soc. 27 (1971), 97-100

DOI: https://doi.org/10.1090/S0002-9939-1971-0269825-1

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The construction of a $\bar \partial$-simple covering

Wilhelm Stoll

Proc. Amer. Math. Soc. 27 (1971), 101-106

DOI: https://doi.org/10.1090/S0002-9939-1971-0273059-4

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Ideal preserving automorphisms of postliminary $C^ \ast$-algebras

George A. Elliott

Proc. Amer. Math. Soc. 27 (1971), 107-109

DOI: https://doi.org/10.1090/S0002-9939-1971-0268686-4

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$L^{2}$ asymptotes for the Klein-Gordon equation

Stuart Nelson

Proc. Amer. Math. Soc. 27 (1971), 110-116

DOI: https://doi.org/10.1090/S0002-9939-1971-0271561-2

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On a generalisation of Hermite polynomials

Maya Lahiri

Proc. Amer. Math. Soc. 27 (1971), 117-121

DOI: https://doi.org/10.1090/S0002-9939-1971-0267168-3

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On a conjecture of A. J. Hoffman

Joseph Zaks

Proc. Amer. Math. Soc. 27 (1971), 122-125

DOI: https://doi.org/10.1090/S0002-9939-1971-0275282-1

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Explicit characterization of spherical curves

Shlomo Breuer and David Gottlieb

Proc. Amer. Math. Soc. 27 (1971), 126-127

DOI: https://doi.org/10.1090/S0002-9939-1971-0270275-2

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$C^{\infty }$-functions need not be bimeasurable

R. B. Darst

Proc. Amer. Math. Soc. 27 (1971), 128-132

DOI: https://doi.org/10.1090/S0002-9939-1971-0267060-4

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Choices from finite sets and choices of finite subsets

Martin M. Zuckerman

Proc. Amer. Math. Soc. 27 (1971), 133-138

DOI: https://doi.org/10.1090/S0002-9939-1971-0270905-5

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Fields in which varieties have rational points: A note on a problem of $\textrm {Ax}$

Newcomb Greenleaf

Proc. Amer. Math. Soc. 27 (1971), 139-140

DOI: https://doi.org/10.1090/S0002-9939-1971-0269656-2

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Comments on the continuity of distribution functions obtained by superposition

Barthel W. Huff

Proc. Amer. Math. Soc. 27 (1971), 141-146

DOI: https://doi.org/10.1090/S0002-9939-1971-0270417-9

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Real zeros of a random sum of orthogonal polynomials

Minaketan Das

Proc. Amer. Math. Soc. 27 (1971), 147-153

DOI: https://doi.org/10.1090/S0002-9939-1971-0268933-9

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Developable spaces and $p$-spaces

David E. Kullman

Proc. Amer. Math. Soc. 27 (1971), 154-160

DOI: https://doi.org/10.1090/S0002-9939-1971-0271899-9

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A characterization of order topologies by means of minimal $T_{0}$-topologies

W. J. Thron and Susan J. Zimmerman

Proc. Amer. Math. Soc. 27 (1971), 161-167

DOI: https://doi.org/10.1090/S0002-9939-1971-0283767-7

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Extending free circle actions on spheres to $S^{3}$ actions

Bruce Conrad

Proc. Amer. Math. Soc. 27 (1971), 168-174

DOI: https://doi.org/10.1090/S0002-9939-1971-0275470-4

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Complex bordism of classifying spaces

Peter S. Landweber

Proc. Amer. Math. Soc. 27 (1971), 175-179

DOI: https://doi.org/10.1090/S0002-9939-1971-0268885-1

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A new proof of Brown’s collaring theorem

Robert Connelly

Proc. Amer. Math. Soc. 27 (1971), 180-182

DOI: https://doi.org/10.1090/S0002-9939-1971-0267588-7

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On the nonexistence of slices for $p$-adic transformation groups

Lawrence M. Franklin

Proc. Amer. Math. Soc. 27 (1971), 183-185

DOI: https://doi.org/10.1090/S0002-9939-1971-0267039-2

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Can an $\textrm {LCA}$ group be anti-self-dual?

D. L. Armacost

Proc. Amer. Math. Soc. 27 (1971), 186-188

DOI: https://doi.org/10.1090/S0002-9939-1971-0267036-7

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A theorem on near equicontinuity of transformation groups

Fred A. Roberson

Proc. Amer. Math. Soc. 27 (1971), 189-191

DOI: https://doi.org/10.1090/S0002-9939-1971-0267559-0

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Fixed points for contractive multifunctions

R. E. Smithson

Proc. Amer. Math. Soc. 27 (1971), 192-194

DOI: https://doi.org/10.1090/S0002-9939-1971-0267564-4

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Topological characterizations of pseudo-$\aleph$-compact spaces

Giovanni Vidossich

Proc. Amer. Math. Soc. 27 (1971), 195-198

DOI: https://doi.org/10.1090/S0002-9939-1971-0267532-2

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Compact totally $\mathcal {H}$ ordered semigroups

J. H. Carruth and C. E. Clark

Proc. Amer. Math. Soc. 27 (1971), 199-204

DOI: https://doi.org/10.1090/S0002-9939-1971-0271263-2

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A characterization of hereditarily indecomposable continua

Albert L. Crawford and John Jobe

Proc. Amer. Math. Soc. 27 (1971), 205-208

DOI: https://doi.org/10.1090/S0002-9939-1971-0283830-0

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Inertial and bordism properties of spheres

Allan Brender

Proc. Amer. Math. Soc. 27 (1971), 209-212

DOI: https://doi.org/10.1090/S0002-9939-1971-0267592-9

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