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)

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Contents of Volume 139, Number 4
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Theorems of W. W. Stothers and the Jacobian Conjecture in two variables: Edward Formanek; Proc. Amer. Math. Soc. 139 (2011), 1137-1140; DOI: https://doi.org/10.1090/S0002-9939-2010-10523-3; Published electronically: August 30, 2010; PDF

Embedding problems and open subgroups: David Harbater and Katherine Stevenson; Proc. Amer. Math. Soc. 139 (2011), 1141-1154; DOI: https://doi.org/10.1090/S0002-9939-2010-10776-1; Published electronically: November 17, 2010; PDF

An application of ample vector bundles in real algebraic geometry: Wojciech Kucharz and Kamil Rusek; Proc. Amer. Math. Soc. 139 (2011), 1155-1161; DOI: https://doi.org/10.1090/S0002-9939-2010-10765-7; Published electronically: November 17, 2010; PDF

Motivic invariants of algebraic tori: Johannes Nicaise; Proc. Amer. Math. Soc. 139 (2011), 1163-1174; DOI: https://doi.org/10.1090/S0002-9939-2010-10781-5; Published electronically: December 6, 2010; PDF

The Andrews-Stanley partition function and $p(n)$: congruences: Holly Swisher; Proc. Amer. Math. Soc. 139 (2011), 1175-1185; DOI: https://doi.org/10.1090/S0002-9939-2010-10551-8; Published electronically: August 24, 2010; PDF

A negative answer to a question of Bass: G. Cortiñas, C. Haesemeyer, Mark E. Walker and C. Weibel; Proc. Amer. Math. Soc. 139 (2011), 1187-1200; DOI: https://doi.org/10.1090/S0002-9939-2010-10728-1; Published electronically: November 2, 2010; PDF

Łojasiewicz exponent near the fibre of a mapping: Tomasz Rodak and Stanisław Spodzieja; Proc. Amer. Math. Soc. 139 (2011), 1201-1213; DOI: https://doi.org/10.1090/S0002-9939-2010-10623-8; Published electronically: September 29, 2010; PDF

Difference between Galois representations in automorphism and outer-automorphism groups of a fundamental group: Makoto Matsumoto; Proc. Amer. Math. Soc. 139 (2011), 1215-1220; DOI: https://doi.org/10.1090/S0002-9939-2010-10846-8; Published electronically: December 1, 2010; PDF

The existence of hyperelliptic fibrations with slope four and high relative Euler-Poincaré characteristic: Hirotaka Ishida; Proc. Amer. Math. Soc. 139 (2011), 1221-1235; DOI: https://doi.org/10.1090/S0002-9939-2010-10773-6; Published electronically: November 4, 2010; PDF

The Johnson filtration of the McCool stabilizer subgroup of the automorphism group of a free group: Takao Satoh; Proc. Amer. Math. Soc. 139 (2011), 1237-1245; DOI: https://doi.org/10.1090/S0002-9939-2010-10550-6; Published electronically: August 27, 2010; PDF

Congruences for newforms and the index of the Hecke algebra: Scott Ahlgren and Jeremy Rouse; Proc. Amer. Math. Soc. 139 (2011), 1247-1261; DOI: https://doi.org/10.1090/S0002-9939-2010-10661-5; Published electronically: October 1, 2010; PDF

A universal characterization of the Chern character maps: Gonçalo Tabuada; Proc. Amer. Math. Soc. 139 (2011), 1263-1271; DOI: https://doi.org/10.1090/S0002-9939-2010-10569-5; Published electronically: August 31, 2010; PDF

Gauss sums over finite fields and roots of unity: Robert J. Lemke Oliver; Proc. Amer. Math. Soc. 139 (2011), 1273-1276; DOI: https://doi.org/10.1090/S0002-9939-2010-10662-7; Published electronically: September 30, 2010; PDF

The class number of $\mathbb {Q}(\sqrt {-p})$ and digits of $1/p$: M. Ram Murty and R. Thangadurai; Proc. Amer. Math. Soc. 139 (2011), 1277-1289; DOI: https://doi.org/10.1090/S0002-9939-2010-10560-9; Published electronically: August 30, 2010; PDF

On the restriction of the Hermitian Eisenstein series and its applications: Shoyu Nagaoka and Yoshitugu Nakamura; Proc. Amer. Math. Soc. 139 (2011), 1291-1298; DOI: https://doi.org/10.1090/S0002-9939-2010-10562-2; Published electronically: September 2, 2010; PDF

Holonomies and the slope inequality of Lefschetz fibrations: Hideki Miyachi and Hiroshige Shiga; Proc. Amer. Math. Soc. 139 (2011), 1299-1307; DOI: https://doi.org/10.1090/S0002-9939-2010-10563-4; Published electronically: October 4, 2010; PDF

Sets of integers as superdegrees and superclass sizes: Benjamin Allen Otto; Proc. Amer. Math. Soc. 139 (2011), 1309-1319; DOI: https://doi.org/10.1090/S0002-9939-2010-10748-7; Published electronically: October 29, 2010; PDF

Hecke algebras related to the unimodular and modular groups over quadratic field extensions and quaternion algebras: Martin Raum; Proc. Amer. Math. Soc. 139 (2011), 1321-1331; DOI: https://doi.org/10.1090/S0002-9939-2010-10570-1; Published electronically: September 3, 2010; PDF

Neumann problem on a half-space: Fumiyama Shu, Masaki Tanaka and Minoru Yanagishita; Proc. Amer. Math. Soc. 139 (2011), 1333-1345; DOI: https://doi.org/10.1090/S0002-9939-2010-10787-6; Published electronically: November 30, 2010; PDF

Vector spaces of entire functions of unbounded type: Jerónimo López - Salazar Codes; Proc. Amer. Math. Soc. 139 (2011), 1347-1360; DOI: https://doi.org/10.1090/S0002-9939-2010-10817-1; Published electronically: November 23, 2010; PDF

Uniqueness of traveling waves for nonlocal lattice equations: Jian Fang, Junjie Wei and Xiao-Qiang Zhao; Proc. Amer. Math. Soc. 139 (2011), 1361-1373; DOI: https://doi.org/10.1090/S0002-9939-2010-10540-3; Published electronically: August 25, 2010; PDF

The Koch snowflake curve is tube-null: Viktor Harangi; Proc. Amer. Math. Soc. 139 (2011), 1375-1381; DOI: https://doi.org/10.1090/S0002-9939-2010-10712-8; Published electronically: December 1, 2010; PDF

On spaces of compact operators on $C(K, X)$ spaces: Elói Medina Galego; Proc. Amer. Math. Soc. 139 (2011), 1383-1386; DOI: https://doi.org/10.1090/S0002-9939-2010-10544-0; Published electronically: August 23, 2010; PDF

Toeplitz and Hankel operators associated with subdiagonal algebras: Bebe Prunaru; Proc. Amer. Math. Soc. 139 (2011), 1387-1396; DOI: https://doi.org/10.1090/S0002-9939-2010-10573-7; Published electronically: August 31, 2010; PDF

Geometric versions of Schwarz’s lemma for quasiregular mappings: Dimitrios Betsakos; Proc. Amer. Math. Soc. 139 (2011), 1397-1407; DOI: https://doi.org/10.1090/S0002-9939-2010-10604-4; Published electronically: September 15, 2010; PDF

A non-residually solvable hyperlinear one-relator group: Jon P. Bannon; Proc. Amer. Math. Soc. 139 (2011), 1409-1410; DOI: https://doi.org/10.1090/S0002-9939-2010-10668-8; Published electronically: August 30, 2010; PDF

Carathéodory measure hyperbolicity and positivity of canonical bundles: Shin Kikuta; Proc. Amer. Math. Soc. 139 (2011), 1411-1420; DOI: https://doi.org/10.1090/S0002-9939-2010-10564-6; Published electronically: September 1, 2010; PDF

Asymptotic behavior for a nonlocal diffusion equation with absorption and nonintegrable initial data. The supercritical case: Joana Terra and Noemi Wolanski; Proc. Amer. Math. Soc. 139 (2011), 1421-1432; DOI: https://doi.org/10.1090/S0002-9939-2010-10612-3; Published electronically: September 2, 2010; PDF

Another observation about operator compressions: Elizabeth S. Meckes and Mark W. Meckes; Proc. Amer. Math. Soc. 139 (2011), 1433-1439; DOI: https://doi.org/10.1090/S0002-9939-2010-10671-8; Published electronically: September 2, 2010; PDF

Another proof of Euler’s formula for $\zeta (2k)$: E. de Amo, M. Díaz Carrillo and J. Fernández-Sánchez; Proc. Amer. Math. Soc. 139 (2011), 1441-1444; DOI: https://doi.org/10.1090/S0002-9939-2010-10565-8; Published electronically: September 30, 2010; PDF

Weak-star convergence in multiparameter Hardy spaces: Jill Pipher and Sergei Treil; Proc. Amer. Math. Soc. 139 (2011), 1445-1454; DOI: https://doi.org/10.1090/S0002-9939-2010-10567-1; Published electronically: September 3, 2010; PDF

Volume integral means of holomorphic functions: Jie Xiao and Kehe Zhu; Proc. Amer. Math. Soc. 139 (2011), 1455-1465; DOI: https://doi.org/10.1090/S0002-9939-2010-10797-9; Published electronically: November 18, 2010; PDF

Fibred quadratic polynomials can admit two attracting invariant curves: Mario Ponce; Proc. Amer. Math. Soc. 139 (2011), 1467-1468; DOI: https://doi.org/10.1090/S0002-9939-2010-10574-9; Published electronically: October 5, 2010; PDF

Nonpositively curved Hermitian metrics on product manifolds: Chengjie Yu; Proc. Amer. Math. Soc. 139 (2011), 1469-1472; DOI: https://doi.org/10.1090/S0002-9939-2010-10558-0; Published electronically: August 27, 2010; PDF

A new proof of the Orlicz Busemann-Petty centroid inequality: Ai-Jun Li and Gangsong Leng; Proc. Amer. Math. Soc. 139 (2011), 1473-1481; DOI: https://doi.org/10.1090/S0002-9939-2010-10651-2; Published electronically: September 30, 2010; PDF

Exponential scale mixture of matrix variate Cauchy distribution: Amadou Sarr and Arjun K. Gupta; Proc. Amer. Math. Soc. 139 (2011), 1483-1494; DOI: https://doi.org/10.1090/S0002-9939-2010-10568-3; Published electronically: September 2, 2010; PDF

Characterizing isotopic continua in the sphere: Lex G. Oversteegen and Kirsten I. S. Valkenburg; Proc. Amer. Math. Soc. 139 (2011), 1495-1510; DOI: https://doi.org/10.1090/S0002-9939-2010-10830-4; Published electronically: December 8, 2010; PDF

Higher-dimensional linking integrals: Clayton Shonkwiler and David Shea Vela-Vick; Proc. Amer. Math. Soc. 139 (2011), 1511-1519; DOI: https://doi.org/10.1090/S0002-9939-2010-10603-2; Published electronically: October 1, 2010; PDF