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 131, Number 2
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On pro-unipotent groups satisfying the Golod–Shafarevich condition: M. Kassabov; Proc. Amer. Math. Soc. 131 (2003), 329-336; DOI: https://doi.org/10.1090/S0002-9939-02-06824-7; Published electronically: September 19, 2002; PDF

The influence of minimal subgroups on the structure of a finite group: Yangming Li and Yanming Wang; Proc. Amer. Math. Soc. 131 (2003), 337-341; DOI: https://doi.org/10.1090/S0002-9939-02-06547-4; Published electronically: May 22, 2002; PDF

A new invariant of stable equivalences of Morita type: Zygmunt Pogorzały; Proc. Amer. Math. Soc. 131 (2003), 343-349; DOI: https://doi.org/10.1090/S0002-9939-02-06553-X; Published electronically: June 5, 2002; PDF

Correction to the paper “Duality and flat base change on formal schemes”: Leovigildo Alonso Tarrío, Ana Jeremías López and Joseph Lipman; Proc. Amer. Math. Soc. 131 (2003), 351-357; DOI: https://doi.org/10.1090/S0002-9939-02-06558-9; Published electronically: June 5, 2002; PDF

A simple proof for the finiteness of GIT-quotients: Alexander Schmitt; Proc. Amer. Math. Soc. 131 (2003), 359-362; DOI: https://doi.org/10.1090/S0002-9939-02-06599-1; Published electronically: June 3, 2002; PDF

Nilpotency degree of cohomology rings in characteristic $p$: Pham Anh Minh; Proc. Amer. Math. Soc. 131 (2003), 363-368; DOI: https://doi.org/10.1090/S0002-9939-02-06550-4; Published electronically: June 3, 2002; PDF

Algebraic groups over finite fields, a quick proof of Lang’s theorem: Peter Müller; Proc. Amer. Math. Soc. 131 (2003), 369-370; DOI: https://doi.org/10.1090/S0002-9939-02-06591-7; Published electronically: May 17, 2002; PDF

Fully transitive $p$-groups with finite first Ulm subgroup: Agnes T. Paras and Lutz Strüngmann; Proc. Amer. Math. Soc. 131 (2003), 371-377; DOI: https://doi.org/10.1090/S0002-9939-02-06593-0; Published electronically: June 3, 2002; PDF

Some results on extremal vectors and invariant subspaces: Per Enflo and Terje Hõim; Proc. Amer. Math. Soc. 131 (2003), 379-387; DOI: https://doi.org/10.1090/S0002-9939-02-06326-8; Published electronically: September 17, 2002; PDF

Differentiability and regularity of Lipschitzian mappings: Boris S. Mordukhovich and Bingwu Wang; Proc. Amer. Math. Soc. 131 (2003), 389-399; DOI: https://doi.org/10.1090/S0002-9939-02-06836-3; Published electronically: September 25, 2002; PDF

Harmonic Bergman functions as radial derivatives of Bergman functions: Boo Rim Choe, Hyungwoon Koo and HeungSu Yi; Proc. Amer. Math. Soc. 131 (2003), 401-408; DOI: https://doi.org/10.1090/S0002-9939-02-06531-0; Published electronically: September 19, 2002; PDF

On the number of zeros of certain harmonic polynomials: Dmitry Khavinson and Grzegorz Świa̧tek; Proc. Amer. Math. Soc. 131 (2003), 409-414; DOI: https://doi.org/10.1090/S0002-9939-02-06476-6; Published electronically: September 17, 2002; PDF

Nonexistence results for higher–order evolution partial differential inequalities: Gennady G. Laptev; Proc. Amer. Math. Soc. 131 (2003), 415-423; DOI: https://doi.org/10.1090/S0002-9939-02-06665-0; Published electronically: September 17, 2002; PDF

Triangulations and homology of Riemann surfaces: Peter Buser and Mika Seppälä; Proc. Amer. Math. Soc. 131 (2003), 425-432; DOI: https://doi.org/10.1090/S0002-9939-02-06470-5; Published electronically: September 25, 2002; PDF

Block bases of the Haar system as complemented subspaces of $L_p$, $2<p<\infty$: Dvir Kleper and Gideon Schechtman; Proc. Amer. Math. Soc. 131 (2003), 433-439; DOI: https://doi.org/10.1090/S0002-9939-02-06779-5; Published electronically: September 17, 2002; PDF

Soliton solutions for quasilinear Schrödinger equations, I: Jiaquan Liu and Zhi-Qiang Wang; Proc. Amer. Math. Soc. 131 (2003), 441-448; DOI: https://doi.org/10.1090/S0002-9939-02-06783-7; Published electronically: September 17, 2002; PDF

Exposed 2-homogeneous polynomials on Hilbert spaces: Sung Guen Kim and Sang Hun Lee; Proc. Amer. Math. Soc. 131 (2003), 449-453; DOI: https://doi.org/10.1090/S0002-9939-02-06544-9; Published electronically: May 17, 2002; PDF

$L^p$ regularity of averaging operators with higher fold singularities: Chan Woo Yang; Proc. Amer. Math. Soc. 131 (2003), 455-465; DOI: https://doi.org/10.1090/S0002-9939-02-06559-0; Published electronically: June 5, 2002; PDF

Endpoint estimates for certain commutators of fractional and singular integrals: Shanzhen Lu and Qiang Wu; Proc. Amer. Math. Soc. 131 (2003), 467-477; DOI: https://doi.org/10.1090/S0002-9939-02-06548-6; Published electronically: May 17, 2002; PDF

Hypercyclicity and supercyclicity for invertible bilateral weighted shifts: Nathan S. Feldman; Proc. Amer. Math. Soc. 131 (2003), 479-485; DOI: https://doi.org/10.1090/S0002-9939-02-06537-1; Published electronically: June 3, 2002; PDF

An infinite-time relaxation theorem for differential inclusions: Brian Ingalls, Eduardo D. Sontag and Yuan Wang; Proc. Amer. Math. Soc. 131 (2003), 487-499; DOI: https://doi.org/10.1090/S0002-9939-02-06539-5; Published electronically: May 22, 2002; PDF

Applications of phase plane analysis of a Liénard system to positive solutions of Schrödinger equations: Jitsuro Sugie and Naoto Yamaoka; Proc. Amer. Math. Soc. 131 (2003), 501-509; DOI: https://doi.org/10.1090/S0002-9939-02-06681-9; Published electronically: June 12, 2002; PDF

The $\ell ^{1}$-indices of Tsirelson type spaces: Denny H. Leung and Wee-Kee Tang; Proc. Amer. Math. Soc. 131 (2003), 511-521; DOI: https://doi.org/10.1090/S0002-9939-02-06586-3; Published electronically: June 3, 2002; PDF

Irrational rotation numbers and unboundedness of solutions of the second order differential equations with asymmetric nonlinearities: Zaihong Wang; Proc. Amer. Math. Soc. 131 (2003), 523-531; DOI: https://doi.org/10.1090/S0002-9939-02-06601-7; Published electronically: June 3, 2002; PDF

A trace formula for isometric pairs: Rongwei Yang; Proc. Amer. Math. Soc. 131 (2003), 533-541; DOI: https://doi.org/10.1090/S0002-9939-02-06687-X; Published electronically: June 5, 2002; PDF

The Banach envelope of Paley-Wiener type spaces: Mark Hoffmann; Proc. Amer. Math. Soc. 131 (2003), 543-548; DOI: https://doi.org/10.1090/S0002-9939-02-06581-4; Published electronically: June 5, 2002; PDF

On the Albanese maps of compact Kähler manifolds: F. Campana, T. Peternell and Qi Zhang; Proc. Amer. Math. Soc. 131 (2003), 549-553; DOI: https://doi.org/10.1090/S0002-9939-02-06702-3; Published electronically: June 27, 2002; PDF

Locally pre-$C$*-equivalent algebras: Wei Wu; Proc. Amer. Math. Soc. 131 (2003), 555-562; DOI: https://doi.org/10.1090/S0002-9939-02-06686-8; Published electronically: June 3, 2002; PDF

On the boundedness of Hamiltonian operators: Tomas Ya. Azizov, Aad Dijksma and Irina V. Gridneva; Proc. Amer. Math. Soc. 131 (2003), 563-576; DOI: https://doi.org/10.1090/S0002-9939-02-06565-6; Published electronically: May 29, 2002; PDF

Multiple symmetric positive solutions of a class of boundary value problems for higher order ordinary differential equations: John R. Graef, Chuanxi Qian and Bo Yang; Proc. Amer. Math. Soc. 131 (2003), 577-585; DOI: https://doi.org/10.1090/S0002-9939-02-06579-6; Published electronically: June 18, 2002; PDF

Mbekhta’s subspaces and a spectral theory of compact operators: Weibang Gong and Libin Wang; Proc. Amer. Math. Soc. 131 (2003), 587-592; DOI: https://doi.org/10.1090/S0002-9939-02-06639-X; Published electronically: July 17, 2002; PDF

Generalized Schwarz-Pick estimates: Barbara D. MacCluer, Karel Stroethoff and Ruhan Zhao; Proc. Amer. Math. Soc. 131 (2003), 593-599; DOI: https://doi.org/10.1090/S0002-9939-02-06588-7; Published electronically: June 12, 2002; PDF

Adjoints of a class of composition operators: John N. Mc Donald; Proc. Amer. Math. Soc. 131 (2003), 601-606; DOI: https://doi.org/10.1090/S0002-9939-02-06590-5; Published electronically: June 5, 2002; PDF

The Kowalevski top as a reduction of a Hamiltonian system on $\mathfrak {sp}(4, \mathbb {R})^*$: C. Ivanescu and A. Savu; Proc. Amer. Math. Soc. 131 (2003), 607-618; DOI: https://doi.org/10.1090/S0002-9939-02-06541-3; Published electronically: May 22, 2002; PDF

Perfect cliques and $G_\delta$ colorings of Polish spaces: Wiesław Kubiś; Proc. Amer. Math. Soc. 131 (2003), 619-623; DOI: https://doi.org/10.1090/S0002-9939-02-06584-X; Published electronically: August 19, 2002; PDF

Remarks on small sets of reals: Tomek Bartoszynski; Proc. Amer. Math. Soc. 131 (2003), 625-630; DOI: https://doi.org/10.1090/S0002-9939-02-06567-X; Published electronically: April 10, 2002; PDF

A lower bound for sums of eigenvalues of the Laplacian: Antonios D. Melas; Proc. Amer. Math. Soc. 131 (2003), 631-636; DOI: https://doi.org/10.1090/S0002-9939-02-06834-X; Published electronically: September 25, 2002; PDF

Catégorie de Lusternik-Schnirelmann et genre des $H_0$-espaces: M. Cristina Costoya-Ramos; Proc. Amer. Math. Soc. 131 (2003), 637-645; DOI: https://doi.org/10.1090/S0002-9939-02-06533-4; Published electronically: June 3, 2002; PDF

A weakly Stegall space that is not a Stegall space: Warren B. Moors and Sivajah Somasundaram; Proc. Amer. Math. Soc. 131 (2003), 647-654; DOI: https://doi.org/10.1090/S0002-9939-02-06717-5; Published electronically: June 27, 2002; PDF

Knot modules and the Nakanishi index: C. Kearton and S. M. J. Wilson; Proc. Amer. Math. Soc. 131 (2003), 655-663; DOI: https://doi.org/10.1090/S0002-9939-02-06582-6; Published electronically: June 12, 2002; PDF