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 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Contents of Volume 139, Number 12
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Langlands reciprocity for the even-dimensional noncommutative tori This article has been retracted: Igor Nikolaev; Proc. Amer. Math. Soc. 139 (2011), 4153-4162; DOI: https://doi.org/10.1090/S0002-9939-2011-10864-5; Published electronically: April 13, 2011; PDF

Implications of the Hasse principle for zero cycles of degree one on principal homogeneous spaces: Jodi Black; Proc. Amer. Math. Soc. 139 (2011), 4163-4171; DOI: https://doi.org/10.1090/S0002-9939-2011-10844-X; Published electronically: April 12, 2011; PDF

The Brauer group of moduli spaces of vector bundles over a real curve: Indranil Biswas, Norbert Hoffmann, Amit Hogadi and Alexander H. W. Schmitt; Proc. Amer. Math. Soc. 139 (2011), 4173-4179; DOI: https://doi.org/10.1090/S0002-9939-2011-10837-2; Published electronically: April 5, 2011; PDF

Star configuration points and generic plane curves: Enrico Carlini and Adam Van Tuyl; Proc. Amer. Math. Soc. 139 (2011), 4181-4192; DOI: https://doi.org/10.1090/S0002-9939-2011-11204-8; Published electronically: July 7, 2011; PDF

An upper bound on the number of $F$-jumping coefficients of a principal ideal: Mordechai Katzman, Gennady Lyubeznik and Wenliang Zhang; Proc. Amer. Math. Soc. 139 (2011), 4193-4197; DOI: https://doi.org/10.1090/S0002-9939-2011-10897-9; Published electronically: April 20, 2011; PDF

On stably free modules over Laurent polynomial rings: Abed Abedelfatah; Proc. Amer. Math. Soc. 139 (2011), 4199-4206; DOI: https://doi.org/10.1090/S0002-9939-2011-10901-8; Published electronically: April 21, 2011; PDF

Embedding dendriform algebra into its universal enveloping Rota-Baxter algebra: Yuqun Chen and Qiuhui Mo; Proc. Amer. Math. Soc. 139 (2011), 4207-4216; DOI: https://doi.org/10.1090/S0002-9939-2011-10889-X; Published electronically: April 26, 2011; PDF

A characterisation of anti-Löwner functions: Koenraad M. R. Audenaert; Proc. Amer. Math. Soc. 139 (2011), 4217-4223; DOI: https://doi.org/10.1090/S0002-9939-2011-10935-3; Published electronically: April 26, 2011; PDF

Derived equivalence induced by infinitely generated $n$-tilting modules: Silvana Bazzoni, Francesca Mantese and Alberto Tonolo; Proc. Amer. Math. Soc. 139 (2011), 4225-4234; DOI: https://doi.org/10.1090/S0002-9939-2011-10900-6; Published electronically: April 28, 2011; PDF

A formula for the $*$-core of an ideal: Louiza Fouli, Janet C. Vassilev and Adela N. Vraciu; Proc. Amer. Math. Soc. 139 (2011), 4235-4245; DOI: https://doi.org/10.1090/S0002-9939-2011-10858-X; Published electronically: April 27, 2011; PDF

On empty lattice simplices in dimension 4: Margherita Barile, Dominique Bernardi, Alexander Borisov and Jean-Michel Kantor; Proc. Amer. Math. Soc. 139 (2011), 4247-4253; DOI: https://doi.org/10.1090/S0002-9939-2011-10859-1; Published electronically: April 28, 2011; PDF

Groups of banded matrices with banded inverses: Gilbert Strang; Proc. Amer. Math. Soc. 139 (2011), 4255-4264; DOI: https://doi.org/10.1090/S0002-9939-2011-10959-6; Published electronically: April 29, 2011; PDF

$2$-adic properties of modular functions associated to Fermat curves: Matija Kazalicki; Proc. Amer. Math. Soc. 139 (2011), 4265-4271; DOI: https://doi.org/10.1090/S0002-9939-2011-10854-2; Published electronically: April 29, 2011; PDF

Noncancellation for contractible affine threefolds: Adrien Dubouloz, Lucy Moser-Jauslin and P.-M. Poloni; Proc. Amer. Math. Soc. 139 (2011), 4273-4284; DOI: https://doi.org/10.1090/S0002-9939-2011-10869-4; Published electronically: May 2, 2011; PDF

Sofic representations of amenable groups: Gábor Elek and Endre Szabó; Proc. Amer. Math. Soc. 139 (2011), 4285-4291; DOI: https://doi.org/10.1090/S0002-9939-2011-11222-X; Published electronically: July 12, 2011; PDF

On the Hasse principle for certain quartic hypersurfaces: Nguyen Ngoc Dong Quan; Proc. Amer. Math. Soc. 139 (2011), 4293-4305; DOI: https://doi.org/10.1090/S0002-9939-2011-10936-5; Published electronically: May 4, 2011; PDF

$C^{\alpha }$-classical solutions for abstract non-autonomous integro-differential equations: Eduardo Hernández; Proc. Amer. Math. Soc. 139 (2011), 4307-4318; DOI: https://doi.org/10.1090/S0002-9939-2011-11265-6; Published electronically: August 9, 2011; PDF

Nondegeneracy of the saddle solution of the Allen-Cahn equation: Michał Kowalczyk and Yong Liu; Proc. Amer. Math. Soc. 139 (2011), 4319-4329; DOI: https://doi.org/10.1090/S0002-9939-2011-11217-6; Published electronically: July 26, 2011; PDF

Spectral properties of commuting operations for $n$-tuples: C. Benhida and E. H. Zerouali; Proc. Amer. Math. Soc. 139 (2011), 4331-4342; DOI: https://doi.org/10.1090/S0002-9939-2011-10875-X; Published electronically: April 11, 2011; PDF

Nonzero positive solutions of systems of elliptic boundary value problems: K. Q. Lan; Proc. Amer. Math. Soc. 139 (2011), 4343-4349; DOI: https://doi.org/10.1090/S0002-9939-2011-10840-2; Published electronically: April 4, 2011; PDF

$p(x)$-Laplacian with indefinite weight: Khaled Kefi; Proc. Amer. Math. Soc. 139 (2011), 4351-4360; DOI: https://doi.org/10.1090/S0002-9939-2011-10850-5; Published electronically: April 20, 2011; PDF

Eigenfunction expansions in ${\mathbb R}^n$: Todor Gramchev, Stevan Pilipovic and Luigi Rodino; Proc. Amer. Math. Soc. 139 (2011), 4361-4368; DOI: https://doi.org/10.1090/S0002-9939-2011-11022-0; Published electronically: April 5, 2011; PDF

A note on composition operators acting on holomorphic Sobolev spaces: Boo Rim Choe, Hyungwoon Koo and Wayne Smith; Proc. Amer. Math. Soc. 139 (2011), 4369-4375; DOI: https://doi.org/10.1090/S0002-9939-2011-10944-4; Published electronically: April 21, 2011; PDF

The Radon-Nikodym property for some Banach algebras related to the Fourier algebra: Edmond E. Granirer; Proc. Amer. Math. Soc. 139 (2011), 4377-4384; DOI: https://doi.org/10.1090/S0002-9939-2011-10853-0; Published electronically: April 22, 2011; PDF

Various characterizations of product Hardy space: Ji Li, Liang Song and Chaoqiang Tan; Proc. Amer. Math. Soc. 139 (2011), 4385-4400; DOI: https://doi.org/10.1090/S0002-9939-2011-10852-9; Published electronically: April 22, 2011; PDF

Hyperbolizing metric spaces: Zair Ibragimov; Proc. Amer. Math. Soc. 139 (2011), 4401-4407; DOI: https://doi.org/10.1090/S0002-9939-2011-10857-8; Published electronically: April 25, 2011; PDF

Infinite multiplicity for an inhomogeneous supercritical problem in entire space: Baishun Lai and Zhihao Ge; Proc. Amer. Math. Soc. 139 (2011), 4409-4418; DOI: https://doi.org/10.1090/S0002-9939-2011-10902-X; Published electronically: April 27, 2011; PDF

Tight embedding of subspaces of $L_p$ in $\ell _p^n$ for even $p$: Gideon Schechtman; Proc. Amer. Math. Soc. 139 (2011), 4419-4421; DOI: https://doi.org/10.1090/S0002-9939-2011-10863-3; Published electronically: May 2, 2011; PDF

Nash equilibria in quantum games: Steven E. Landsburg; Proc. Amer. Math. Soc. 139 (2011), 4423-4434; DOI: https://doi.org/10.1090/S0002-9939-2011-10838-4; Published electronically: April 19, 2011; PDF

Soul theorem for 4-dimensional topologically regular open nonnegatively curved Alexandrov spaces: Jian Ge; Proc. Amer. Math. Soc. 139 (2011), 4435-4443; DOI: https://doi.org/10.1090/S0002-9939-2011-10831-1; Published electronically: April 13, 2011; PDF

Planar loops with prescribed curvature: Existence, multiplicity and uniqueness results: Roberta Musina; Proc. Amer. Math. Soc. 139 (2011), 4445-4459; DOI: https://doi.org/10.1090/S0002-9939-2011-10915-8; Published electronically: April 5, 2011; PDF

Formality of Pascal arrangements: Matthew Miller and Max Wakefield; Proc. Amer. Math. Soc. 139 (2011), 4461-4466; DOI: https://doi.org/10.1090/S0002-9939-2011-11009-8; Published electronically: April 5, 2011; PDF

Isoperimetric surfaces with boundary: Rebecca Dorff, Drew Johnson, Gary R. Lawlor and Donald Sampson; Proc. Amer. Math. Soc. 139 (2011), 4467-4473; DOI: https://doi.org/10.1090/S0002-9939-2011-10872-4; Published electronically: April 26, 2011; PDF

A PL-manifold of nonnegative curvature homeomorphic to $S^2 \times S^2$ is a direct metric product: Sergey Orshanskiy; Proc. Amer. Math. Soc. 139 (2011), 4475-4486; DOI: https://doi.org/10.1090/S0002-9939-2011-10861-X; Published electronically: May 3, 2011; PDF

Non-isomorphism invariant Borel quantifiers: Fredrik Engström and Philipp Schlicht; Proc. Amer. Math. Soc. 139 (2011), 4487-4496; DOI: https://doi.org/10.1090/S0002-9939-2011-10849-9; Published electronically: April 21, 2011; PDF

On maximal ranges of vector measures for subsets and purification of transition probabilities: Peng Dai and Eugene A. Feinberg; Proc. Amer. Math. Soc. 139 (2011), 4497-4511; DOI: https://doi.org/10.1090/S0002-9939-2011-10860-8; Published electronically: April 25, 2011; PDF

Legendrian framings for two-bridge links: Sebastian Baader and Masaharu Ishikawa; Proc. Amer. Math. Soc. 139 (2011), 4513-4520; DOI: https://doi.org/10.1090/S0002-9939-2011-10888-8; Published electronically: April 4, 2011; PDF