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 111, Number 2
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The free lattice-ordered group over a nilpotent group: Michael R. Darnel; Proc. Amer. Math. Soc. 111 (1991), 301-307; DOI: https://doi.org/10.1090/S0002-9939-1991-1042263-2; PDF

Irreducible outer automorphisms of a free group: S. M. Gersten and J. R. Stallings; Proc. Amer. Math. Soc. 111 (1991), 309-314; DOI: https://doi.org/10.1090/S0002-9939-1991-1052571-7; PDF

Free subalgebras of enveloping fields: L. Makar-Limanov and P. Malcolmson; Proc. Amer. Math. Soc. 111 (1991), 315-322; DOI: https://doi.org/10.1090/S0002-9939-1991-1041015-7; PDF

On dual sets generated by lacunary polynomials: Hans Dobbertin and Volker Kasten; Proc. Amer. Math. Soc. 111 (1991), 323-330; DOI: https://doi.org/10.1090/S0002-9939-1991-0935105-4; PDF

Twistor spaces with meromorphic functions: Y. S. Poon; Proc. Amer. Math. Soc. 111 (1991), 331-338; DOI: https://doi.org/10.1090/S0002-9939-1991-1036990-0; PDF

Equivalence of variational inequalities with Wiener-Hopf equations: Peter Shi; Proc. Amer. Math. Soc. 111 (1991), 339-346; DOI: https://doi.org/10.1090/S0002-9939-1991-1037224-3; PDF

Holomorphic motions and polynomial hulls: Zbigniew Slodkowski; Proc. Amer. Math. Soc. 111 (1991), 347-355; DOI: https://doi.org/10.1090/S0002-9939-1991-1037218-8; PDF

Determinant of the Neumann operator on smooth Jordan curves: Julian Edward and Siye Wu; Proc. Amer. Math. Soc. 111 (1991), 357-363; DOI: https://doi.org/10.1090/S0002-9939-1991-1031662-0; PDF

A criterion for the nonporosity of a general Cantor set: Paul D. Humke; Proc. Amer. Math. Soc. 111 (1991), 365-372; DOI: https://doi.org/10.1090/S0002-9939-1991-1039532-9; PDF

Absolute continuity of Hamiltonians with von Neumann-Wigner potentials: Horst Behncke; Proc. Amer. Math. Soc. 111 (1991), 373-384; DOI: https://doi.org/10.1090/S0002-9939-1991-1036983-3; PDF

Forced oscillations with rapidly vanishing nonlinearities: R. Kannan and Kent Nagle; Proc. Amer. Math. Soc. 111 (1991), 385-393; DOI: https://doi.org/10.1090/S0002-9939-1991-1028287-X; PDF

Comparison theorems for the $\nu$-zeroes of Legendre functions $P^ m_ \nu (z_ 0)$ when $-1<z_ 0<1$: Frank E. Baginski; Proc. Amer. Math. Soc. 111 (1991), 395-402; DOI: https://doi.org/10.1090/S0002-9939-1991-1043402-X; PDF

Criteria for the extremality of the Koebe mapping: D. Bshouty and W. Hengartner; Proc. Amer. Math. Soc. 111 (1991), 403-411; DOI: https://doi.org/10.1090/S0002-9939-1991-1037204-8; PDF

Singularly continuous measures in Nevai’s class $M$: D. S. Lubinsky; Proc. Amer. Math. Soc. 111 (1991), 413-420; DOI: https://doi.org/10.1090/S0002-9939-1991-1039259-3; PDF

Invariant signed measures and the cancellation law: M. Laczkovich; Proc. Amer. Math. Soc. 111 (1991), 421-431; DOI: https://doi.org/10.1090/S0002-9939-1991-1036988-2; PDF

On the oscillation of differential equations with periodic coefficients: Ch. G. Philos; Proc. Amer. Math. Soc. 111 (1991), 433-440; DOI: https://doi.org/10.1090/S0002-9939-1991-1037219-X; PDF

Some estimates for harmonic measures. II: James A. Jenkins; Proc. Amer. Math. Soc. 111 (1991), 441-442; DOI: https://doi.org/10.1090/S0002-9939-1991-1050021-8; PDF

Differentiable functions which do not satisfy a uniform Lipschitz condition of any order: Masayoshi Hata; Proc. Amer. Math. Soc. 111 (1991), 443-450; DOI: https://doi.org/10.1090/S0002-9939-1991-1045138-8; PDF

The gap between the first two eigenvalues of a one-dimensional Schrödinger operator with symmetric potential: S. Abramovich; Proc. Amer. Math. Soc. 111 (1991), 451-453; DOI: https://doi.org/10.1090/S0002-9939-1991-1036981-X; PDF

Noninvertible transformations admitting no absolutely continuous $\sigma$-finite invariant measure: Jane M. Hawkins and Cesar E. Silva; Proc. Amer. Math. Soc. 111 (1991), 455-463; DOI: https://doi.org/10.1090/S0002-9939-1991-1045139-X; PDF

Radon-Nikodým theorems for multimeasures and transition multimeasures: Nikolaos S. Papageorgiou; Proc. Amer. Math. Soc. 111 (1991), 465-474; DOI: https://doi.org/10.1090/S0002-9939-1991-1036989-4; PDF

Maximal triangular subalgebras need not be closed: Yiu Tung Poon; Proc. Amer. Math. Soc. 111 (1991), 475-479; DOI: https://doi.org/10.1090/S0002-9939-1991-1034888-5; PDF

On the weighted approximation of continuously differentiable functions: Leopoldo Nachbin; Proc. Amer. Math. Soc. 111 (1991), 481-485; DOI: https://doi.org/10.1090/S0002-9939-1991-1037217-6; PDF

Blow-up of $H^ 1$ solutions for the one-dimensional nonlinear Schrödinger equation with critical power nonlinearity: Takayoshi Ogawa and Yoshio Tsutsumi; Proc. Amer. Math. Soc. 111 (1991), 487-496; DOI: https://doi.org/10.1090/S0002-9939-1991-1045145-5; PDF

Zeros of solutions of a second order nonlinear differential inequality: Fu Hsiang Wong; Proc. Amer. Math. Soc. 111 (1991), 497-500; DOI: https://doi.org/10.1090/S0002-9939-1991-1034889-7; PDF

Centralizing mappings on von Neumann algebras: Matej Brešar; Proc. Amer. Math. Soc. 111 (1991), 501-510; DOI: https://doi.org/10.1090/S0002-9939-1991-1028283-2; PDF

Two operator functions with monotone property: Takayuki Furuta; Proc. Amer. Math. Soc. 111 (1991), 511-516; DOI: https://doi.org/10.1090/S0002-9939-1991-1045135-2; PDF

Systems of equations in the predual of a von Neumann algebra: Michael Marsalli; Proc. Amer. Math. Soc. 111 (1991), 517-522; DOI: https://doi.org/10.1090/S0002-9939-1991-1042269-3; PDF

Exponential sums and Goppa codes. I: Carlos J. Moreno and Oscar Moreno; Proc. Amer. Math. Soc. 111 (1991), 523-531; DOI: https://doi.org/10.1090/S0002-9939-1991-1028291-1; PDF

Paradoxical decompositions and invariant measures: Piotr Zakrzewski; Proc. Amer. Math. Soc. 111 (1991), 533-539; DOI: https://doi.org/10.1090/S0002-9939-1991-1039268-4; PDF

Sharply transitive linear groups over algebraically closed fields: Gregory Cherlin, Theo Grundhöfer, Ali Nesin and Helmut Völklein; Proc. Amer. Math. Soc. 111 (1991), 541-550; DOI: https://doi.org/10.1090/S0002-9939-1991-1031450-5; PDF

Level crossings of a random trigonometric polynomial: Kambiz Farahmand; Proc. Amer. Math. Soc. 111 (1991), 551-557; DOI: https://doi.org/10.1090/S0002-9939-1991-1015677-4; PDF

A generalized van Kampen-Flores theorem: K. S. Sarkaria; Proc. Amer. Math. Soc. 111 (1991), 559-565; DOI: https://doi.org/10.1090/S0002-9939-1991-1004423-6; PDF

Combinatorial set theory and cardinal function inequalities: R. E. Hodel; Proc. Amer. Math. Soc. 111 (1991), 567-575; DOI: https://doi.org/10.1090/S0002-9939-1991-1039531-7; PDF

On the action of Steenrod squares on polynomial algebras: William M. Singer; Proc. Amer. Math. Soc. 111 (1991), 577-583; DOI: https://doi.org/10.1090/S0002-9939-1991-1045150-9; PDF

Asymptotic behavior of stable manifolds: Michal Fečkan; Proc. Amer. Math. Soc. 111 (1991), 585-593; DOI: https://doi.org/10.1090/S0002-9939-1991-1037207-3; PDF