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 90, Number 2
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Solvable groups with $\pi$-isolators: A. H. Rhemtulla, A. Weiss and M. Yousif; Proc. Amer. Math. Soc. 90 (1984), 173-177; DOI: https://doi.org/10.1090/S0002-9939-1984-0727226-2; PDF

Automorphism groups of ruled function fields and a problem of Zariski: James K. Deveney; Proc. Amer. Math. Soc. 90 (1984), 178-180; DOI: https://doi.org/10.1090/S0002-9939-1984-0727227-4; PDF

Commutative FPF rings arising as split-null extensions: Carl Faith; Proc. Amer. Math. Soc. 90 (1984), 181-185; DOI: https://doi.org/10.1090/S0002-9939-1984-0727228-6; PDF

Morita equivalence and infinite matrix rings: Victor Camillo; Proc. Amer. Math. Soc. 90 (1984), 186-188; DOI: https://doi.org/10.1090/S0002-9939-1984-0727229-8; PDF

On the compactification of strongly pseudoconvex surfaces. II: Vo Van Tan; Proc. Amer. Math. Soc. 90 (1984), 189-194; DOI: https://doi.org/10.1090/S0002-9939-1984-0727230-4; PDF

On the field of a $2$-block. II: B. G. Basmaji; Proc. Amer. Math. Soc. 90 (1984), 195-198; DOI: https://doi.org/10.1090/S0002-9939-1984-0727231-6; PDF

The Burau representation is unitary: Craig C. Squier; Proc. Amer. Math. Soc. 90 (1984), 199-202; DOI: https://doi.org/10.1090/S0002-9939-1984-0727232-8; PDF

Equationally complete discriminator varieties of groupoids: Robert W. Quackenbush; Proc. Amer. Math. Soc. 90 (1984), 203-206; DOI: https://doi.org/10.1090/S0002-9939-1984-0727233-X; PDF

On the number of locally bounded field topologies: Jo-Ann D. Cohen; Proc. Amer. Math. Soc. 90 (1984), 207-210; DOI: https://doi.org/10.1090/S0002-9939-1984-0727234-1; PDF

Nilpotency of derivatives on an ideal: L. O. Chung and Jiang Luh; Proc. Amer. Math. Soc. 90 (1984), 211-214; DOI: https://doi.org/10.1090/S0002-9939-1984-0727235-3; PDF

An algebraic periodicity theorem for spheres: Joseph P. Brennan; Proc. Amer. Math. Soc. 90 (1984), 215-218; DOI: https://doi.org/10.1090/S0002-9939-1984-0727236-5; PDF

A representation theorem for semilattices: D. A. Bredikhin; Proc. Amer. Math. Soc. 90 (1984), 219-220; DOI: https://doi.org/10.1090/S0002-9939-1984-0727237-7; PDF

Formules intégrales de Koppelman sur une variété de Stein: Christine Laurent-Thiébaut; Proc. Amer. Math. Soc. 90 (1984), 221-229; DOI: https://doi.org/10.1090/S0002-9939-1984-0727238-9; PDF

The least area bounded by multiples of a curve: Brian White; Proc. Amer. Math. Soc. 90 (1984), 230-232; DOI: https://doi.org/10.1090/S0002-9939-1984-0727239-0; PDF

Weak-star closed algebras and generalized Bergman kernels: Karim Seddighi; Proc. Amer. Math. Soc. 90 (1984), 233-239; DOI: https://doi.org/10.1090/S0002-9939-1984-0727240-7; PDF

Is there always a unique extremal Teichmüller mapping?: Kurt Strebel; Proc. Amer. Math. Soc. 90 (1984), 240-242; DOI: https://doi.org/10.1090/S0002-9939-1984-0727241-9; PDF

Almost open mappings between normed spaces: Robin Harte; Proc. Amer. Math. Soc. 90 (1984), 243-249; DOI: https://doi.org/10.1090/S0002-9939-1984-0727242-0; PDF

On the Borel $\sigma$-field and the Baire property: John C. Morgan; Proc. Amer. Math. Soc. 90 (1984), 250-252; DOI: https://doi.org/10.1090/S0002-9939-1984-0727243-2; PDF

A description of weights satisfying the $A_{\infty }$ condition of Muckenhoupt: Sergei V. Hruščev; Proc. Amer. Math. Soc. 90 (1984), 253-257; DOI: https://doi.org/10.1090/S0002-9939-1984-0727244-4; PDF

Approximately transitive diffeomorphisms of the circle: J. Hawkins and E. J. Woods; Proc. Amer. Math. Soc. 90 (1984), 258-262; DOI: https://doi.org/10.1090/S0002-9939-1984-0727245-6; PDF

Probability measure representation of norms associated with the notion of entropy: Romuald Dąbrowski; Proc. Amer. Math. Soc. 90 (1984), 263-268; DOI: https://doi.org/10.1090/S0002-9939-1984-0727246-8; PDF

Reflexivity of a Banach space with a uniformly normal structure: Jong Sook Bae; Proc. Amer. Math. Soc. 90 (1984), 269-270; DOI: https://doi.org/10.1090/S0002-9939-1984-0727247-X; PDF

On asymptotic behaviour of certain integro-differential equations: En Hao Yang; Proc. Amer. Math. Soc. 90 (1984), 271-276; DOI: https://doi.org/10.1090/S0002-9939-1984-0727248-1; PDF

A note on an oscillation criterion for an equation with damped term: Ju Rang Yan; Proc. Amer. Math. Soc. 90 (1984), 277-280; DOI: https://doi.org/10.1090/S0002-9939-1984-0727249-3; PDF

Continuity of measurable convex and biconvex operators: Lionel Thibault; Proc. Amer. Math. Soc. 90 (1984), 281-284; DOI: https://doi.org/10.1090/S0002-9939-1984-0727250-X; PDF

Quand l’espace des mesures à variation bornée est-il faiblement séquentiellement complet?: Michel Talagrand; Proc. Amer. Math. Soc. 90 (1984), 285-288; DOI: https://doi.org/10.1090/S0002-9939-1984-0727251-1; PDF

Surjectivity of $\varphi$-accretive operators: Jong An Park and Sehie Park; Proc. Amer. Math. Soc. 90 (1984), 289-292; DOI: https://doi.org/10.1090/S0002-9939-1984-0727252-3; PDF

Analytic functions with large sets of Fatou points: J. S. Hwang and Peter Lappan; Proc. Amer. Math. Soc. 90 (1984), 293-298; DOI: https://doi.org/10.1090/S0002-9939-1984-0727253-5; PDF

Removable singularities for $n$-harmonic functions and Hardy classes in polydiscs: David Singman; Proc. Amer. Math. Soc. 90 (1984), 299-302; DOI: https://doi.org/10.1090/S0002-9939-1984-0727254-7; PDF

Decomposability preserving curvature operators with an application to Einstein manifolds: Michael R. Gabel and Stanley M. Zoltek; Proc. Amer. Math. Soc. 90 (1984), 303-308; DOI: https://doi.org/10.1090/S0002-9939-1984-0727255-9; PDF

A note on the topological degree at a critical point of mountainpass-type: Helmut Hofer; Proc. Amer. Math. Soc. 90 (1984), 309-315; DOI: https://doi.org/10.1090/S0002-9939-1984-0727256-0; PDF

Note on epimorphisms and monomorphisms in homotopy theory: Peter Hilton and Joseph Roitberg; Proc. Amer. Math. Soc. 90 (1984), 316-320; DOI: https://doi.org/10.1090/S0002-9939-1984-0727257-2; PDF

Stability of typical continuous functions with respect to some properties of their iterates: J. Smítal and K. Neubrunnová; Proc. Amer. Math. Soc. 90 (1984), 321-324; DOI: https://doi.org/10.1090/S0002-9939-1984-0727258-4; PDF

A “Riemann hypothesis” for triangulable manifolds: K. S. Sarkaria; Proc. Amer. Math. Soc. 90 (1984), 325-326; DOI: https://doi.org/10.1090/S0002-9939-1984-0727259-6; PDF

Closed maps and the character of spaces: Yoshio Tanaka; Proc. Amer. Math. Soc. 90 (1984), 327-332; DOI: https://doi.org/10.1090/S0002-9939-1984-0727260-2; PDF

A strong form of the Phragmén-Brouwer theorem: R. F. Dickman; Proc. Amer. Math. Soc. 90 (1984), 333-337; DOI: https://doi.org/10.1090/S0002-9939-1984-0727261-4; PDF

A new $q$-Lagrange formula and some applications: Christian Krattenthaler; Proc. Amer. Math. Soc. 90 (1984), 338-344; DOI: https://doi.org/10.1090/S0002-9939-1984-0727262-6; PDF

Corrections and additions to: “A generalization of a theorem of Ayoub and Chowla”: Don Redmond; Proc. Amer. Math. Soc. 90 (1984), 345-346; DOI: https://doi.org/10.1090/S0002-9939-1984-0727263-8; PDF