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 135, Number 9
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On quasifree profinite groups: Luis Ribes, Katherine Stevenson and Pavel Zalesskii; Proc. Amer. Math. Soc. 135 (2007), 2669-2676; DOI: https://doi.org/10.1090/S0002-9939-07-08892-2; Published electronically: February 9, 2007; PDF

The distribution functions of $\sigma (n)/n$ and $n/\varphi (n)$: Andreas Weingartner; Proc. Amer. Math. Soc. 135 (2007), 2677-2681; DOI: https://doi.org/10.1090/S0002-9939-07-08771-0; Published electronically: February 6, 2007; PDF

Characters of association schemes containing a strongly normal closed subset of prime index: Akihide Hanaki; Proc. Amer. Math. Soc. 135 (2007), 2683-2687; DOI: https://doi.org/10.1090/S0002-9939-07-08835-1; Published electronically: April 5, 2007; PDF

Row and column finite matrices: Pace P. Nielsen; Proc. Amer. Math. Soc. 135 (2007), 2689-2697; DOI: https://doi.org/10.1090/S0002-9939-07-08790-4; Published electronically: February 9, 2007; PDF

Character sums over shifted smooth numbers: Igor E. Shparlinski; Proc. Amer. Math. Soc. 135 (2007), 2699-2705; DOI: https://doi.org/10.1090/S0002-9939-07-08785-0; Published electronically: May 2, 2007; PDF

A smooth counterexample to Nori’s conjecture on the fundamental group scheme: Christian Pauly; Proc. Amer. Math. Soc. 135 (2007), 2707-2711; DOI: https://doi.org/10.1090/S0002-9939-07-08805-3; Published electronically: May 2, 2007; PDF

Level algebras with bad properties: Mats Boij and Fabrizio Zanello; Proc. Amer. Math. Soc. 135 (2007), 2713-2722; DOI: https://doi.org/10.1090/S0002-9939-07-08829-6; Published electronically: May 4, 2007; PDF

On pointed Hopf algebras associated to some conjugacy classes in $\mathbb {S}_n$: Nicolás Andruskiewitsch and Shouchuan Zhang; Proc. Amer. Math. Soc. 135 (2007), 2723-2731; DOI: https://doi.org/10.1090/S0002-9939-07-08880-6; Published electronically: February 16, 2007; PDF

Hereditary and maximal crossed product orders: Amiram Braun, Yuval Ginosar and Amit Levy; Proc. Amer. Math. Soc. 135 (2007), 2733-2742; DOI: https://doi.org/10.1090/S0002-9939-07-08977-0; Published electronically: May 8, 2007; PDF

On $U(p)$-congruences: P. Guerzhoy; Proc. Amer. Math. Soc. 135 (2007), 2743-2746; DOI: https://doi.org/10.1090/S0002-9939-07-08816-8; Published electronically: May 8, 2007; PDF

Failure of separation by quasi-homomorphisms in mapping class groups: H. Endo and D. Kotschick; Proc. Amer. Math. Soc. 135 (2007), 2747-2750; DOI: https://doi.org/10.1090/S0002-9939-07-08866-1; Published electronically: May 9, 2007; PDF

On complemented versions of James’s distortion theorems: William B. Johnson and Narcisse Randrianantoanina; Proc. Amer. Math. Soc. 135 (2007), 2751-2757; DOI: https://doi.org/10.1090/S0002-9939-07-08775-8; Published electronically: March 30, 2007; PDF

A Schwarz lemma on the polydisk: Greg Knese; Proc. Amer. Math. Soc. 135 (2007), 2759-2768; DOI: https://doi.org/10.1090/S0002-9939-07-08766-7; Published electronically: March 30, 2007; PDF

Unbounded solutions and periodic solutions for second order differential equations with asymmetric nonlinearity: Xiong Li and Ziheng Zhang; Proc. Amer. Math. Soc. 135 (2007), 2769-2777; DOI: https://doi.org/10.1090/S0002-9939-07-08928-9; Published electronically: February 9, 2007; PDF

On local irreducibility of the spectrum: Constantin Costara and Thomas Ransford; Proc. Amer. Math. Soc. 135 (2007), 2779-2784; DOI: https://doi.org/10.1090/S0002-9939-07-08779-5; Published electronically: February 6, 2007; PDF

Uniqueness for boundary blow-up problems with continuous weights: Jorge García-Melián; Proc. Amer. Math. Soc. 135 (2007), 2785-2793; DOI: https://doi.org/10.1090/S0002-9939-07-08822-3; Published electronically: March 30, 2007; PDF

Some weighted Gagliardo-Nirenberg inequalities and applications: Javier Duoandikoetxea and Luis Vega; Proc. Amer. Math. Soc. 135 (2007), 2795-2802; DOI: https://doi.org/10.1090/S0002-9939-07-08839-9; Published electronically: February 9, 2007; PDF

Order-weakly compact operators from vector-valued function spaces to Banach spaces: Marian Nowak; Proc. Amer. Math. Soc. 135 (2007), 2803-2809; DOI: https://doi.org/10.1090/S0002-9939-07-08828-4; Published electronically: May 4, 2007; PDF

Moment problem with contractive solutions: the regular case: Zenon J. Jablonski; Proc. Amer. Math. Soc. 135 (2007), 2811-2819; DOI: https://doi.org/10.1090/S0002-9939-07-08796-5; Published electronically: May 2, 2007; PDF

Equilibrium points of logarithmic potentials on convex domains: J. K. Langley; Proc. Amer. Math. Soc. 135 (2007), 2821-2826; DOI: https://doi.org/10.1090/S0002-9939-07-08791-6; Published electronically: February 7, 2007; PDF

Banach-Stone theorem for Banach lattice valued continuous functions: Z. Ercan and S. Önal; Proc. Amer. Math. Soc. 135 (2007), 2827-2829; DOI: https://doi.org/10.1090/S0002-9939-07-08788-6; Published electronically: May 8, 2007; PDF

Strong convergence of path for continuous pseudo-contractive mappings: Claudio H. Morales; Proc. Amer. Math. Soc. 135 (2007), 2831-2838; DOI: https://doi.org/10.1090/S0002-9939-07-08910-1; Published electronically: February 9, 2007; PDF

The atomic decomposition in $L^{1}(R^n)$: Wael Abu-Shammala and Alberto Torchinsky; Proc. Amer. Math. Soc. 135 (2007), 2839-2843; DOI: https://doi.org/10.1090/S0002-9939-07-08792-8; Published electronically: May 4, 2007; PDF

A matricial corona theorem II: Tavan T. Trent and Xinjun Zhang; Proc. Amer. Math. Soc. 135 (2007), 2845-2854; DOI: https://doi.org/10.1090/S0002-9939-07-08806-5; Published electronically: May 4, 2007; PDF

Pattern formation (II): The Turing Instability: Yan Guo and Hyung Ju Hwang; Proc. Amer. Math. Soc. 135 (2007), 2855-2866; DOI: https://doi.org/10.1090/S0002-9939-07-08850-8; Published electronically: May 14, 2007; PDF

A “deformation estimate" for the Toeplitz operators on harmonic Bergman spaces: Congwen Liu; Proc. Amer. Math. Soc. 135 (2007), 2867-2876; DOI: https://doi.org/10.1090/S0002-9939-07-08800-4; Published electronically: May 8, 2007; PDF

The characteristic function of a complex symmetric contraction: Nicolas Chevrot, Emmanuel Fricain and Dan Timotin; Proc. Amer. Math. Soc. 135 (2007), 2877-2886; DOI: https://doi.org/10.1090/S0002-9939-07-08803-X; Published electronically: May 8, 2007; PDF

From an iteration formula to Poincaré’s Isochronous Center Theorem for holomorphic vector fields: Guang Yuan Zhang; Proc. Amer. Math. Soc. 135 (2007), 2887-2891; DOI: https://doi.org/10.1090/S0002-9939-07-08802-8; Published electronically: May 8, 2007; PDF

Mapping properties of analytic functions on the disk: Pietro Poggi-Corradini; Proc. Amer. Math. Soc. 135 (2007), 2893-2898; DOI: https://doi.org/10.1090/S0002-9939-07-08823-5; Published electronically: May 8, 2007; PDF

Perturbations and Weyl’s theorem: B. P. Duggal; Proc. Amer. Math. Soc. 135 (2007), 2899-2905; DOI: https://doi.org/10.1090/S0002-9939-07-08799-0; Published electronically: May 8, 2007; PDF

$C^*$-isomorphisms, Jordan isomorphisms, and numerical range preserving maps: Hwa-Long Gau and Chi-Kwong Li; Proc. Amer. Math. Soc. 135 (2007), 2907-2914; DOI: https://doi.org/10.1090/S0002-9939-07-08807-7; Published electronically: May 8, 2007; PDF

A strengthening of the Carleman-Hardy-Pólya inequality: Finbarr Holland; Proc. Amer. Math. Soc. 135 (2007), 2915-2920; DOI: https://doi.org/10.1090/S0002-9939-07-08876-4; Published electronically: May 9, 2007; PDF

The Lempert function of the symmetrized polydisc in higher dimensions is not a distance: Nikolai Nikolov, Peter Pflug and Wlodzimierz Zwonek; Proc. Amer. Math. Soc. 135 (2007), 2921-2928; DOI: https://doi.org/10.1090/S0002-9939-07-08817-X; Published electronically: May 10, 2007; PDF

On a nonhomogeneous quasilinear eigenvalue problem in Sobolev spaces with variable exponent: Mihai Mihăilescu and Vicenţiu Rădulescu; Proc. Amer. Math. Soc. 135 (2007), 2929-2937; DOI: https://doi.org/10.1090/S0002-9939-07-08815-6; Published electronically: May 9, 2007; PDF

A Whittaker-Shannon-Kotel’nikov sampling theorem related to the Dunkl transform: Óscar Ciaurri and Juan L. Varona; Proc. Amer. Math. Soc. 135 (2007), 2939-2947; DOI: https://doi.org/10.1090/S0002-9939-07-08831-4; Published electronically: May 8, 2007; PDF

On $L^2$ cohomology of ACH Kähler manifolds: Xiaodong Wang; Proc. Amer. Math. Soc. 135 (2007), 2949-2960; DOI: https://doi.org/10.1090/S0002-9939-07-08838-7; Published electronically: February 9, 2007; PDF

The conformal deformation detour complex for the obstruction tensor: Thomas P. Branson and A. Rod Gover; Proc. Amer. Math. Soc. 135 (2007), 2961-2965; DOI: https://doi.org/10.1090/S0002-9939-07-08932-0; Published electronically: May 10, 2007; PDF

Unprovability of sharp versions of Friedman’s sine-principle: Andrey Bovykin; Proc. Amer. Math. Soc. 135 (2007), 2967-2973; DOI: https://doi.org/10.1090/S0002-9939-07-08933-2; Published electronically: May 8, 2007; PDF

Special subsets of the reals and tree forcing notions: Marcin Kysiak, Andrzej Nowik and Tomasz Weiss; Proc. Amer. Math. Soc. 135 (2007), 2975-2982; DOI: https://doi.org/10.1090/S0002-9939-07-08808-9; Published electronically: May 9, 2007; PDF

A decomposition for invariant tests of uniformity on the sphere: Jean-Renaud Pycke; Proc. Amer. Math. Soc. 135 (2007), 2983-2993; DOI: https://doi.org/10.1090/S0002-9939-07-08804-1; Published electronically: May 8, 2007; PDF

An infinite-dimensional integral identity for the Segal-Bargmann transform: Jeremy J. Becnel and Ambar N. Sengupta; Proc. Amer. Math. Soc. 135 (2007), 2995-3003; DOI: https://doi.org/10.1090/S0002-9939-07-08995-2; Published electronically: May 9, 2007; PDF

Geometric angle structures on triangulated surfaces: Ren Guo; Proc. Amer. Math. Soc. 135 (2007), 3005-3011; DOI: https://doi.org/10.1090/S0002-9939-07-08783-7; Published electronically: March 30, 2007; PDF

Hamilton’s gradient estimate for the heat kernel on complete manifolds: Brett L. Kotschwar; Proc. Amer. Math. Soc. 135 (2007), 3013-3019; DOI: https://doi.org/10.1090/S0002-9939-07-08837-5; Published electronically: May 14, 2007; PDF

Complete manifolds with nonnegative curvature operator: Lei Ni and Baoqiang Wu; Proc. Amer. Math. Soc. 135 (2007), 3021-3028; DOI: https://doi.org/10.1090/S0002-9939-06-08872-1; Published electronically: November 29, 2006; PDF