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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)

The 2024 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Contents of Volume 26, Number 4
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Products of Abelian subgroups
Bernhard Amberg and W. R. Scott
Proc. Amer. Math. Soc. 26 (1970), 541-547
DOI: https://doi.org/10.1090/S0002-9939-1970-0267001-9
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Reducing the rank of $(A-\lambda B)$
Gerald L. Thompson and Roman L. Weil
Proc. Amer. Math. Soc. 26 (1970), 548-554
DOI: https://doi.org/10.1090/S0002-9939-1970-0266418-6
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Complete ideals and monoidal transforms
Arthur Mattuck
Proc. Amer. Math. Soc. 26 (1970), 555-560
DOI: https://doi.org/10.1090/S0002-9939-1970-0265362-8
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Absolutely pure modules
Charles Megibben
Proc. Amer. Math. Soc. 26 (1970), 561-566
DOI: https://doi.org/10.1090/S0002-9939-1970-0294409-8
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The cohomology ring of a finite group scheme
Gustave Efroymson
Proc. Amer. Math. Soc. 26 (1970), 567-570
DOI: https://doi.org/10.1090/S0002-9939-1970-0266928-1
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Uniqueness of generators of principal ideals in rings of continuous functions
M. J. Canfell
Proc. Amer. Math. Soc. 26 (1970), 571-573
DOI: https://doi.org/10.1090/S0002-9939-1970-0288109-8
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A combinatorial problem and congruences for the Rayleigh function
F. T. Howard
Proc. Amer. Math. Soc. 26 (1970), 574-578
DOI: https://doi.org/10.1090/S0002-9939-1970-0266853-6
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A root of unity occurring in partition theory
Peter Hagis
Proc. Amer. Math. Soc. 26 (1970), 579-582
DOI: https://doi.org/10.1090/S0002-9939-1970-0265308-2
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A special class of Moufang loops
Hala Orlik-Pflugfelder
Proc. Amer. Math. Soc. 26 (1970), 583-586
DOI: https://doi.org/10.1090/S0002-9939-1970-0265498-1
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$K_{1}$ of projective $r$-spaces
Leslie G. Roberts
Proc. Amer. Math. Soc. 26 (1970), 587-592
DOI: https://doi.org/10.1090/S0002-9939-1970-0280501-0
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The spectral radius of a direct integral of operators
T. R. Chow
Proc. Amer. Math. Soc. 26 (1970), 593-597
DOI: https://doi.org/10.1090/S0002-9939-1970-0283603-8
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A variation-of-parameters inequality
David Lowell Lovelady
Proc. Amer. Math. Soc. 26 (1970), 598-602
DOI: https://doi.org/10.1090/S0002-9939-1970-0435526-9
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On the operational calculus for groups of operators
Shmuel Kantorovitz
Proc. Amer. Math. Soc. 26 (1970), 603-608
DOI: https://doi.org/10.1090/S0002-9939-1970-0271768-3
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Pseudo-uniform convexity of $H^{1}$ in several variables
Laurence D. Hoffmann
Proc. Amer. Math. Soc. 26 (1970), 609-614
DOI: https://doi.org/10.1090/S0002-9939-1970-0268656-5
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Fixed point theorems for mappings with a contractive iterate at a point
L. F. Guseman
Proc. Amer. Math. Soc. 26 (1970), 615-618
DOI: https://doi.org/10.1090/S0002-9939-1970-0266010-3
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On the convexity of lemniscates
Dorothy Browne Shaffer
Proc. Amer. Math. Soc. 26 (1970), 619-620
DOI: https://doi.org/10.1090/S0002-9939-1970-0271313-2
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On the ideal structure of the algebra of radial functions
Alan Schwartz
Proc. Amer. Math. Soc. 26 (1970), 621-624
DOI: https://doi.org/10.1090/S0002-9939-1970-0265865-6
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An approximation theorem for $\overline \partial$-closed forms of type $(n, n-1)$
Barnet M. Weinstock
Proc. Amer. Math. Soc. 26 (1970), 625-628
DOI: https://doi.org/10.1090/S0002-9939-1970-0265638-4
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A comparision theorem for Hamiltonian vector fields
Alan Weinstein and Jerrold Marsden
Proc. Amer. Math. Soc. 26 (1970), 629-631
DOI: https://doi.org/10.1090/S0002-9939-1970-0273648-6
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Completeness of Hamiltonian vector fields
David G. Ebin
Proc. Amer. Math. Soc. 26 (1970), 632-634
DOI: https://doi.org/10.1090/S0002-9939-1970-0278340-X
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Square integrable solutions of $Ly=f(t, y)$
Anton Zettl
Proc. Amer. Math. Soc. 26 (1970), 635-639
DOI: https://doi.org/10.1090/S0002-9939-1970-0267213-4
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A brief derivation of the Heisenberg commutation relations
Reese T. Prosser
Proc. Amer. Math. Soc. 26 (1970), 640-641
DOI: https://doi.org/10.1090/S0002-9939-1970-0290673-X
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A short proof of Berger’s curvature tensor estimates
Hermann Karcher
Proc. Amer. Math. Soc. 26 (1970), 642-644
DOI: https://doi.org/10.1090/S0002-9939-1970-0270304-5
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The solvability of the word problem for certain semigroups
Ann Yasuhara
Proc. Amer. Math. Soc. 26 (1970), 645-650
DOI: https://doi.org/10.1090/S0002-9939-1970-0268257-9
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An equivalent form of Lévy’s axiom schema
Murray Jorgensen
Proc. Amer. Math. Soc. 26 (1970), 651-654
DOI: https://doi.org/10.1090/S0002-9939-1970-0269498-7
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Some results on expansive mappings
Richard K. Williams
Proc. Amer. Math. Soc. 26 (1970), 655-663
DOI: https://doi.org/10.1090/S0002-9939-1970-0266186-8
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Higher homotopy commutativity and extension of maps
F. D. Williams
Proc. Amer. Math. Soc. 26 (1970), 664-670
DOI: https://doi.org/10.1090/S0002-9939-1970-0273613-9
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Imbedding free cyclic group actions in circle group actions
Jeffrey L. Tollefson
Proc. Amer. Math. Soc. 26 (1970), 671-673
DOI: https://doi.org/10.1090/S0002-9939-1970-0267580-1
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A $2$-sphere of vetical order $5$ bounds a $3$-cell
L. D. Loveland
Proc. Amer. Math. Soc. 26 (1970), 674-678
DOI: https://doi.org/10.1090/S0002-9939-1970-0268871-0
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A characterization of $N$-compact spaces
Kim-peu Chew
Proc. Amer. Math. Soc. 26 (1970), 679-682
DOI: https://doi.org/10.1090/S0002-9939-1970-0267534-5
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A note on stable homotopy modules
Donald W. Kahn
Proc. Amer. Math. Soc. 26 (1970), 683-686
DOI: https://doi.org/10.1090/S0002-9939-1970-0270368-9
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Span of lens spaces
Kôichi Iwata
Proc. Amer. Math. Soc. 26 (1970), 687-688
DOI: https://doi.org/10.1090/S0002-9939-1970-0267600-4
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$H$-spaces and the suspension homomorphism
H. B. Haslam
Proc. Amer. Math. Soc. 26 (1970), 689-694
DOI: https://doi.org/10.1090/S0002-9939-1970-0273609-7
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Regular-closed, Urysohn-closed and completely Hausdorff-closed spaces.
H. Herrlich
Proc. Amer. Math. Soc. 26 (1970), 695-698
DOI: https://doi.org/10.1090/S0002-9939-1970-0268838-2
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The Künneth formula and abelian monoids
Jean-Pierre Meyer
Proc. Amer. Math. Soc. 26 (1970), 699-700
DOI: https://doi.org/10.1090/S0002-9939-1970-0271929-3
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Errata: “Products of Hermitian matrices and symmetries”
Heydar Radjavi
Proc. Amer. Math. Soc. 26 (1970), 701
DOI: https://doi.org/10.1090/S0002-9939-1970-0265379-3
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