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 137, Number 2
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Cyclotomic units in function fields: Sunghan Bae and Linsheng Yin; Proc. Amer. Math. Soc. 137 (2009), 401-408; DOI: https://doi.org/10.1090/S0002-9939-08-09587-7; Published electronically: October 3, 2008; PDF

Vertex cover algebras of unimodular hypergraphs: Jürgen Herzog, Takayuki Hibi and Ngô Viêt Trung; Proc. Amer. Math. Soc. 137 (2009), 409-414; DOI: https://doi.org/10.1090/S0002-9939-08-09308-8; Published electronically: October 9, 2008; PDF

Class groups of global function fields with certain splitting behaviors of the infinite prime: Yoonjin Lee; Proc. Amer. Math. Soc. 137 (2009), 415-424; DOI: https://doi.org/10.1090/S0002-9939-08-09581-6; Published electronically: October 6, 2008; PDF

Generalizing a theorem of P. Hall on finite-by-nilpotent groups: Gustavo A. Fernández-Alcober and Marta Morigi; Proc. Amer. Math. Soc. 137 (2009), 425-429; DOI: https://doi.org/10.1090/S0002-9939-08-09688-3; Published electronically: September 15, 2008; PDF

Polynomial extensions of IDF-domains and of IDPF-domains: P. Malcolmson and F. Okoh; Proc. Amer. Math. Soc. 137 (2009), 431-437; DOI: https://doi.org/10.1090/S0002-9939-08-09531-2; Published electronically: August 18, 2008; PDF

Finiteness properties of local cohomology modules for $\mathfrak a$-minimax modules: Jafar Azami, Reza Naghipour and Bahram Vakili; Proc. Amer. Math. Soc. 137 (2009), 439-448; DOI: https://doi.org/10.1090/S0002-9939-08-09530-0; Published electronically: August 25, 2008; PDF

On the limit points of $(a_n\xi )_{n=1}^{\infty }$ mod $1$ for slowly increasing integer sequences $(a_n)_{n=1}^{\infty }$: Artūras Dubickas; Proc. Amer. Math. Soc. 137 (2009), 449-456; DOI: https://doi.org/10.1090/S0002-9939-08-09491-4; Published electronically: August 4, 2008; PDF

New equivalences for pattern avoiding involutions: W. M. B. Dukes, Vít Jelinek, Toufik Mansour and Astrid Reifegerste; Proc. Amer. Math. Soc. 137 (2009), 457-465; DOI: https://doi.org/10.1090/S0002-9939-08-09492-6; Published electronically: July 9, 2008; PDF

Stable Kneser hypergraphs and ideals in $\mathbb {N}$ with the Nikodym property: Noga Alon, Lech Drewnowski and Tomasz Łuczak; Proc. Amer. Math. Soc. 137 (2009), 467-471; DOI: https://doi.org/10.1090/S0002-9939-08-09588-9; Published electronically: August 19, 2008; PDF

Remark on elliptic units in a $\mathbb {Z}_p$-extension of an imaginary quadratic field: Tsuyoshi Itoh; Proc. Amer. Math. Soc. 137 (2009), 473-478; DOI: https://doi.org/10.1090/S0002-9939-08-09506-3; Published electronically: August 20, 2008; PDF

Abelian ideals and cohomology of symplectic type: Li Luo; Proc. Amer. Math. Soc. 137 (2009), 479-485; DOI: https://doi.org/10.1090/S0002-9939-08-09685-8; Published electronically: September 29, 2008; PDF

Bounds for Hilbert coefficients: Jürgen Herzog and Xinxian Zheng; Proc. Amer. Math. Soc. 137 (2009), 487-494; DOI: https://doi.org/10.1090/S0002-9939-08-09551-8; Published electronically: August 26, 2008; PDF

Glauberman’s and Thompson’s theorems for fusion systems: Antonio Díaz, Adam Glesser, Nadia Mazza and Sejong Park; Proc. Amer. Math. Soc. 137 (2009), 495-503; DOI: https://doi.org/10.1090/S0002-9939-08-09690-1; Published electronically: September 17, 2008; PDF

Homology of real algebraic varieties and morphisms to spheres: Alı̇ Öztürk; Proc. Amer. Math. Soc. 137 (2009), 505-509; DOI: https://doi.org/10.1090/S0002-9939-08-09600-7; Published electronically: September 15, 2008; PDF

Fixed set theorems of Krasnoselskii type: Efe A. Ok; Proc. Amer. Math. Soc. 137 (2009), 511-518; DOI: https://doi.org/10.1090/S0002-9939-08-09332-5; Published electronically: September 29, 2008; PDF

Characterization of optimal transport plans for the Monge-Kantorovich problem: Walter Schachermayer and Josef Teichmann; Proc. Amer. Math. Soc. 137 (2009), 519-529; DOI: https://doi.org/10.1090/S0002-9939-08-09419-7; Published electronically: September 9, 2008; PDF

Gradients of Laplacian eigenfunctions on the Sierpinski gasket: Jessica L. DeGrado, Luke G. Rogers and Robert S. Strichartz; Proc. Amer. Math. Soc. 137 (2009), 531-540; DOI: https://doi.org/10.1090/S0002-9939-08-09711-6; Published electronically: October 6, 2008; PDF

The Weil-Petersson geometry of the moduli space of Riemann surfaces: Lee-Peng Teo; Proc. Amer. Math. Soc. 137 (2009), 541-552; DOI: https://doi.org/10.1090/S0002-9939-08-09692-5; Published electronically: September 17, 2008; PDF

Chord theorems on graphs: Mohammad Javaheri; Proc. Amer. Math. Soc. 137 (2009), 553-562; DOI: https://doi.org/10.1090/S0002-9939-08-09627-5; Published electronically: August 19, 2008; PDF

Intersection of dilates of shift-invariant spaces: Marcin Bownik; Proc. Amer. Math. Soc. 137 (2009), 563-572; DOI: https://doi.org/10.1090/S0002-9939-08-09682-2; Published electronically: October 8, 2008; PDF

A note on zeroes of real polynomials in $C(K)$ spaces: Jesús Ferrer; Proc. Amer. Math. Soc. 137 (2009), 573-577; DOI: https://doi.org/10.1090/S0002-9939-08-09574-9; Published electronically: August 19, 2008; PDF

Products of Cesàro convergent sequences with applications to convex solid sets and integral operators: Anton R. Schep; Proc. Amer. Math. Soc. 137 (2009), 579-584; DOI: https://doi.org/10.1090/S0002-9939-08-09662-7; Published electronically: August 19, 2008; PDF

Hamiltonian elliptic dynamics on symplectic $4$-manifolds: Mário Bessa and João Lopes Dias; Proc. Amer. Math. Soc. 137 (2009), 585-592; DOI: https://doi.org/10.1090/S0002-9939-08-09578-6; Published electronically: August 20, 2008; PDF

Incomparable prime ideals in commutative radical Fréchet algebras: Hung Le Pham; Proc. Amer. Math. Soc. 137 (2009), 593-596; DOI: https://doi.org/10.1090/S0002-9939-08-09665-2; Published electronically: August 22, 2008; PDF

On the analytic solution of the Cauchy problem: Xiang-dong Hou; Proc. Amer. Math. Soc. 137 (2009), 597-606; DOI: https://doi.org/10.1090/S0002-9939-08-09493-8; Published electronically: August 22, 2008; PDF

Constructive decomposition of a function of two variables as a sum of functions of one variable: Eva Miliczká; Proc. Amer. Math. Soc. 137 (2009), 607-614; DOI: https://doi.org/10.1090/S0002-9939-08-09528-2; Published electronically: August 27, 2008; PDF

On Fourier restriction and the Newton polygon: Ákos Magyar; Proc. Amer. Math. Soc. 137 (2009), 615-625; DOI: https://doi.org/10.1090/S0002-9939-08-09510-5; Published electronically: August 26, 2008; PDF

An isoperimetric inequality for the second eigenvalue of the Laplacian with Robin boundary conditions: James Kennedy; Proc. Amer. Math. Soc. 137 (2009), 627-633; DOI: https://doi.org/10.1090/S0002-9939-08-09704-9; Published electronically: October 8, 2008; PDF

Failure of rational approximation on some Cantor type sets: Albert Mas-Blesa; Proc. Amer. Math. Soc. 137 (2009), 635-640; DOI: https://doi.org/10.1090/S0002-9939-08-09573-7; Published electronically: June 20, 2008; PDF

The escaping set of a quasiregular mapping: Walter Bergweiler, Alastair Fletcher, Jim Langley and Janis Meyer; Proc. Amer. Math. Soc. 137 (2009), 641-651; DOI: https://doi.org/10.1090/S0002-9939-08-09609-3; Published electronically: September 4, 2008; PDF

Center type performance of differentiable vector fields in the plane: Roland Rabanal; Proc. Amer. Math. Soc. 137 (2009), 653-662; DOI: https://doi.org/10.1090/S0002-9939-08-09686-X; Published electronically: September 10, 2008; PDF

Extrapolation spaces for $C$-semigroups: Miao Li and Quan Zheng; Proc. Amer. Math. Soc. 137 (2009), 663-668; DOI: https://doi.org/10.1090/S0002-9939-08-09556-7; Published electronically: September 5, 2008; PDF

On the radius of analyticity of solutions to the three-dimensional Euler equations: Igor Kukavica and Vlad Vicol; Proc. Amer. Math. Soc. 137 (2009), 669-677; DOI: https://doi.org/10.1090/S0002-9939-08-09693-7; Published electronically: September 16, 2008; PDF

A steady-state exterior Navier-Stokes problem that is not well-posed: Giovanni P. Galdi; Proc. Amer. Math. Soc. 137 (2009), 679-684; DOI: https://doi.org/10.1090/S0002-9939-08-09658-5; Published electronically: August 15, 2008; PDF

Remarks on the vanishing obstacle limit for a 3D viscous incompressible fluid: Dragoş Iftimie and James P. Kelliher; Proc. Amer. Math. Soc. 137 (2009), 685-694; DOI: https://doi.org/10.1090/S0002-9939-08-09670-6; Published electronically: September 16, 2008; PDF

Dimension reduction for hyperbolic space: Itai Benjamini and Yury Makarychev; Proc. Amer. Math. Soc. 137 (2009), 695-698; DOI: https://doi.org/10.1090/S0002-9939-08-09714-1; Published electronically: September 12, 2008; PDF

Asymptotic stability of the cross curvature flow at a hyperbolic metric: Dan Knopf and Andrea Young; Proc. Amer. Math. Soc. 137 (2009), 699-709; DOI: https://doi.org/10.1090/S0002-9939-08-09534-8; Published electronically: September 3, 2008; PDF

Spacelike hypersurfaces with constant mean curvature in the steady state space: Alma L. Albujer and Luis J. Alías; Proc. Amer. Math. Soc. 137 (2009), 711-721; DOI: https://doi.org/10.1090/S0002-9939-08-09546-4; Published electronically: September 4, 2008; PDF

On amalgamations of Heegaard splittings with high distance: Guoqiu Yang and Fengchun Lei; Proc. Amer. Math. Soc. 137 (2009), 723-731; DOI: https://doi.org/10.1090/S0002-9939-08-09642-1; Published electronically: September 9, 2008; PDF

Sets of constant distance from a compact set in 2-manifolds with a geodesic metric: Alexander Blokh, Michał Misiurewicz and Lex Oversteegen; Proc. Amer. Math. Soc. 137 (2009), 733-743; DOI: https://doi.org/10.1090/S0002-9939-08-09502-6; Published electronically: October 8, 2008; PDF

A metric space with the Haver property whose square fails this property: Elżbieta Pol and Roman Pol; Proc. Amer. Math. Soc. 137 (2009), 745-750; DOI: https://doi.org/10.1090/S0002-9939-08-09511-7; Published electronically: August 25, 2008; PDF

Function spaces of CW homotopy type are Hilbert manifolds: Jaka Smrekar and Atsushi Yamashita; Proc. Amer. Math. Soc. 137 (2009), 751-759; DOI: https://doi.org/10.1090/S0002-9939-08-09584-1; Published electronically: August 28, 2008; PDF

Milnor’s invariants and self $C_{k}$-equivalence: Thomas Fleming and Akira Yasuhara; Proc. Amer. Math. Soc. 137 (2009), 761-770; DOI: https://doi.org/10.1090/S0002-9939-08-09521-X; Published electronically: August 28, 2008; PDF

Fixed point properties of nilpotent group actions on 1-arcwise connected continua: Enhui Shi and Binyong Sun; Proc. Amer. Math. Soc. 137 (2009), 771-775; DOI: https://doi.org/10.1090/S0002-9939-08-09522-1; Published electronically: September 10, 2008; PDF