Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

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Contents of Volume 61, Number 1
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$R$-automorphisms of $R[G]$ for $G$ abelian torsion-free: David C. Lantz; Proc. Amer. Math. Soc. 61 (1976), 1-6; DOI: https://doi.org/10.1090/S0002-9939-1976-0435060-1; PDF

Deformations of generalized complete intersections: R. Mandelbaum and M. Schaps; Proc. Amer. Math. Soc. 61 (1976), 7-10; DOI: https://doi.org/10.1090/S0002-9939-1976-0429888-1; PDF

On a question of Rademacher concerning Dedekind sums: Laurence Pinzur; Proc. Amer. Math. Soc. 61 (1976), 11-15; DOI: https://doi.org/10.1090/S0002-9939-1976-0429717-6; PDF

On the structure of the fixed-point set of a nonexpansive mapping in a Banach space: Ronald E. Bruck; Proc. Amer. Math. Soc. 61 (1976), 16-18; DOI: https://doi.org/10.1090/S0002-9939-1976-0428125-1; PDF

An F. and M. Riesz type theorem for the unit ball in complex $N$-space: Clinton Kolaski; Proc. Amer. Math. Soc. 61 (1976), 19-25; DOI: https://doi.org/10.1090/S0002-9939-1976-0442272-X; PDF

A sufficient condition for hyperinvariance: W. E. Longstaff; Proc. Amer. Math. Soc. 61 (1976), 26-28; DOI: https://doi.org/10.1090/S0002-9939-1976-0430820-5; PDF

A singular integral inequality on a bounded interval: J. S. Bradley and W. N. Everitt; Proc. Amer. Math. Soc. 61 (1976), 29-35; DOI: https://doi.org/10.1090/S0002-9939-1976-0425249-X; PDF

On perturbation of unstable second order linear differential equations: L. Hatvani and L. Pintér; Proc. Amer. Math. Soc. 61 (1976), 36-38; DOI: https://doi.org/10.1090/S0002-9939-1976-0422784-5; PDF

Central sequences in flows on 2-manifolds of finite genus: Dean A. Neumann; Proc. Amer. Math. Soc. 61 (1976), 39-43; DOI: https://doi.org/10.1090/S0002-9939-1976-0426060-6; PDF

On proximinal sets of normal operators: Donald D. Rogers; Proc. Amer. Math. Soc. 61 (1976), 44-48; DOI: https://doi.org/10.1090/S0002-9939-1976-0451018-0; PDF

$S$-limits and $A$-summability: Howard T. Bell; Proc. Amer. Math. Soc. 61 (1976), 49-53; DOI: https://doi.org/10.1090/S0002-9939-1976-0427890-7; PDF

On the zeros of generalized axially symmetric potentials: Peter A. McCoy; Proc. Amer. Math. Soc. 61 (1976), 54-58; DOI: https://doi.org/10.1090/S0002-9939-1976-0477095-9; PDF

On the extension of cylinder measures to $\tau$-smooth measures in linear spaces: Dirk Heidemann; Proc. Amer. Math. Soc. 61 (1976), 59-65; DOI: https://doi.org/10.1090/S0002-9939-1976-0422562-7; PDF

A geometric equivalent of the invariant subspace problem: Eric A. Nordgren, Heydar Radjavi and Peter Rosenthal; Proc. Amer. Math. Soc. 61 (1976), 66-68; DOI: https://doi.org/10.1090/S0002-9939-1976-0430822-9; PDF

On positively turning immersions: J. R. Quine; Proc. Amer. Math. Soc. 61 (1976), 69-72; DOI: https://doi.org/10.1090/S0002-9939-1976-0431210-1; PDF

On analytic functions into $l^{p}$-spaces: J. Globevnik; Proc. Amer. Math. Soc. 61 (1976), 73-76; DOI: https://doi.org/10.1090/S0002-9939-1976-0425138-0; PDF

Dependence on dimension of a constant related to the Grötzsch ring: Glen D. Anderson; Proc. Amer. Math. Soc. 61 (1976), 77-80; DOI: https://doi.org/10.1090/S0002-9939-1976-0442217-2; PDF

An existence theorem for boundary value problems of nonlinear ordinary differential equations: Gene A. Klaasen; Proc. Amer. Math. Soc. 61 (1976), 81-84; DOI: https://doi.org/10.1090/S0002-9939-1976-0466711-3; PDF

Summability integrals: George Brauer; Proc. Amer. Math. Soc. 61 (1976), 85-89; DOI: https://doi.org/10.1090/S0002-9939-1976-0440242-9; PDF

Negative tangent bundles and hyperbolic manifolds: B. Wong; Proc. Amer. Math. Soc. 61 (1976), 90-92; DOI: https://doi.org/10.1090/S0002-9939-1976-0430324-X; PDF

Scalar curvatures on $O(M),G_{2}(M)$: Alcibiades Rigas; Proc. Amer. Math. Soc. 61 (1976), 93-98; DOI: https://doi.org/10.1090/S0002-9939-1976-0425832-1; PDF

Largest normal neighborhoods: V. Ozols; Proc. Amer. Math. Soc. 61 (1976), 99-101; DOI: https://doi.org/10.1090/S0002-9939-1976-0431220-4; PDF

Minimal surfaces in tori by Weyl groups: T. Nagano and B. Smyth; Proc. Amer. Math. Soc. 61 (1976), 102-104; DOI: https://doi.org/10.1090/S0002-9939-1976-0431047-3; PDF

Analysis of an exponential equation with ordinal variables: J. L. Hickman; Proc. Amer. Math. Soc. 61 (1976), 105-111; DOI: https://doi.org/10.1090/S0002-9939-1976-0450069-X; PDF

A remark on the strong law of large numbers: Robert Chen; Proc. Amer. Math. Soc. 61 (1976), 112-116; DOI: https://doi.org/10.1090/S0002-9939-1976-0420802-1; PDF

A Künneth formula for coproducts of simplicial groups: Elyahu Katz; Proc. Amer. Math. Soc. 61 (1976), 117-121; DOI: https://doi.org/10.1090/S0002-9939-1976-0445502-3; PDF

On the $n$-parameter concordance and isotopy theorem: Tadatoshi Akiba; Proc. Amer. Math. Soc. 61 (1976), 122-130; DOI: https://doi.org/10.1090/S0002-9939-1976-0433463-2; PDF

Representations of compact groups on topological vector spaces: some remarks: Russell A. Johnson; Proc. Amer. Math. Soc. 61 (1976), 131-136; DOI: https://doi.org/10.1090/S0002-9939-1976-0430144-6; PDF

A note on the Hurewicz theorem in shape theory: Tadashi Watanabe; Proc. Amer. Math. Soc. 61 (1976), 137-140; DOI: https://doi.org/10.1090/S0002-9939-1976-0431134-X; PDF

Nonimmersions of flag manifolds: S. A. Ilori; Proc. Amer. Math. Soc. 61 (1976), 141-144; DOI: https://doi.org/10.1090/S0002-9939-1976-0424840-4; PDF

Characterizations of minimal Hausdorff spaces: James E. Joseph; Proc. Amer. Math. Soc. 61 (1976), 145-148; DOI: https://doi.org/10.1090/S0002-9939-1976-0425903-X; PDF

Characteristic numbers for unoriented singular $G$-bordism: S. S. Khare and B. L. Sharma; Proc. Amer. Math. Soc. 61 (1976), 149-152; DOI: https://doi.org/10.1090/S0002-9939-1976-0423379-X; PDF

$\beta R$ is a topological Galois space: P. L. Sharma; Proc. Amer. Math. Soc. 61 (1976), 153-154; DOI: https://doi.org/10.1090/S0002-9939-1976-0425931-4; PDF

Hurewicz fibrations need not be locally trivial: L. S. Husch; Proc. Amer. Math. Soc. 61 (1976), 155-156; DOI: https://doi.org/10.1090/S0002-9939-1976-0448349-7; PDF

Manifolds with involution whose fixed set has codimension four: Frank L. Capobianco; Proc. Amer. Math. Soc. 61 (1976), 157-162; DOI: https://doi.org/10.1090/S0002-9939-1976-0425992-2; PDF

Hyperspaces of topological vector spaces: their embedding in topological vector spaces: Prakash Prem and Murat R. Sertel; Proc. Amer. Math. Soc. 61 (1976), 163-168; DOI: https://doi.org/10.1090/S0002-9939-1976-0425881-3; PDF

Periodic points of continuous maps and Lindemann’s independence theorem for exponentials: Dean A. Neumann; Proc. Amer. Math. Soc. 61 (1976), 169-170; DOI: https://doi.org/10.1090/S0002-9939-1976-0433444-9; PDF

On mappings contractive in the sense of Kannan: Ludvik Janos; Proc. Amer. Math. Soc. 61 (1976), 171-175; DOI: https://doi.org/10.1090/S0002-9939-1976-0425936-3; PDF

A note on KC Wallman compactifications: Darrell W. Hajek and Angel E. Jiménez; Proc. Amer. Math. Soc. 61 (1976), 176-178; DOI: https://doi.org/10.1090/S0002-9939-1976-0428283-9; PDF

On the commutation theorem for tensor products of von Neumann algebras: R. Rousseau, Alfons van Daele and L. Vanheeswijck; Proc. Amer. Math. Soc. 61 (1976), 179-180; DOI: https://doi.org/10.1090/S0002-9939-1976-0428061-0; PDF

Representing homology classes of closed orientable surfaces: Mark D. Meyerson; Proc. Amer. Math. Soc. 61 (1976), 181-182; DOI: https://doi.org/10.1090/S0002-9939-1976-0425967-3; PDF

A mean ergodic theorem for families of contractions in Hilbert space: J. R. Blum and J. I. Reich; Proc. Amer. Math. Soc. 61 (1976), 183-185; DOI: https://doi.org/10.1090/S0002-9939-1976-0473875-4; PDF

Erratum to “Weak convergence of semigroups implies strong convergence of weighted averages” (Proc. Amer. Math. Soc. 56 (1976), 157–161): Humphrey Fong; Proc. Amer. Math. Soc. 61 (1976), 186; DOI: https://doi.org/10.1090/S0002-9939-1976-0417820-6; PDF

Erratum to “Inequalities concerning the characters of a finite group” (Proc. Amer. Math. Soc. 49 (1975), 289–293): K. L. Fields; Proc. Amer. Math. Soc. 61 (1976), 186; DOI: https://doi.org/10.1090/S0002-9939-1976-0419577-1; PDF

Erratum to “Quadratic zero-one laws for Gaussian measures and the distribution of quadratic forms” (Proc. Amer. Math. Soc. 54 (1976), 319-325): Alejandro de Acosta; Proc. Amer. Math. Soc. 61 (1976), 187; DOI: https://doi.org/10.1090/S0002-9939-1976-0420758-1; PDF

Erratum: Equivalence of certain discontinuous functions under closure: Maurice Hugh Miller, Jr.; Proc. Amer. Math. Soc. 61 (1976), 187; DOI: https://doi.org/10.1090/S0002-9939-76-99976-7; PDF

Addendum to “Order in a special class of rings and a structure theorem” (Proc. Amer. Math. Soc. 52 (1975), 45–49): Alexander Abian; Proc. Amer. Math. Soc. 61 (1976), 188; DOI: https://doi.org/10.1090/S0002-9939-1976-0419548-5; PDF