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 129, Number 6
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Free summands of conormal modules and central elements in homotopy Lie algebras of local rings: Srikanth Iyengar; Proc. Amer. Math. Soc. 129 (2001), 1563-1572; DOI: https://doi.org/10.1090/S0002-9939-01-05565-4; Published electronically: February 2, 2001; PDF

Proof of Wang’s conjecture on subspaces of an inner product space: Dragomir Ž. Đoković and Jason Sanmiya; Proc. Amer. Math. Soc. 129 (2001), 1573-1580; DOI: https://doi.org/10.1090/S0002-9939-01-06105-6; Published electronically: February 2, 2001; PDF

Depth of symmetric algebras of certain ideals: Mark R. Johnson; Proc. Amer. Math. Soc. 129 (2001), 1581-1585; DOI: https://doi.org/10.1090/S0002-9939-00-05742-7; Published electronically: October 31, 2000; PDF

Primitive noetherian algebras with big centers: Ronald S. Irving; Proc. Amer. Math. Soc. 129 (2001), 1587-1593; DOI: https://doi.org/10.1090/S0002-9939-00-05809-3; Published electronically: October 31, 2000; PDF

Integer solutions to interval linear equations and unique measurement: Peter Fishburn; Proc. Amer. Math. Soc. 129 (2001), 1595-1599; DOI: https://doi.org/10.1090/S0002-9939-00-05947-5; Published electronically: November 15, 2000; PDF

Rigid chains admitting many embeddings: M. Droste and J. K. Truss; Proc. Amer. Math. Soc. 129 (2001), 1601-1608; DOI: https://doi.org/10.1090/S0002-9939-00-05702-6; Published electronically: October 31, 2000; PDF

Antichains of monomial ideals are finite: Diane Maclagan; Proc. Amer. Math. Soc. 129 (2001), 1609-1615; DOI: https://doi.org/10.1090/S0002-9939-00-05816-0; Published electronically: October 31, 2000; PDF

Double exponential sums over thin sets: John B. Friedlander and Igor E. Shparlinski; Proc. Amer. Math. Soc. 129 (2001), 1617-1621; DOI: https://doi.org/10.1090/S0002-9939-00-05921-9; Published electronically: October 31, 2000; PDF

Some Ramanujan hypergraphs associated to $GL(n,\mathbb {F}_q)$: María G. Martínez, Harold M. Stark and Audrey A. Terras; Proc. Amer. Math. Soc. 129 (2001), 1623-1629; DOI: https://doi.org/10.1090/S0002-9939-00-05965-7; Published electronically: October 31, 2000; PDF

On the Lyubeznik numbers of a local ring: Uli Walther; Proc. Amer. Math. Soc. 129 (2001), 1631-1634; DOI: https://doi.org/10.1090/S0002-9939-00-05755-5; Published electronically: October 31, 2000; PDF

Optimizing matrix stability: J. V. Burke, A. S. Lewis and M. L. Overton; Proc. Amer. Math. Soc. 129 (2001), 1635-1642; DOI: https://doi.org/10.1090/S0002-9939-00-05985-2; Published electronically: October 31, 2000; PDF

Irreducible restriction and zeros of characters: Gabriel Navarro; Proc. Amer. Math. Soc. 129 (2001), 1643-1645; DOI: https://doi.org/10.1090/S0002-9939-00-05747-6; Published electronically: October 31, 2000; PDF

Plane quartics with Jacobians isomorphic to a hyperelliptic Jacobian: Everett W. Howe; Proc. Amer. Math. Soc. 129 (2001), 1647-1657; DOI: https://doi.org/10.1090/S0002-9939-00-05887-1; Published electronically: November 21, 2000; PDF

Line bundles for which a projectivized jet bundle is a product: Sandra Di Rocco and Andrew J. Sommese; Proc. Amer. Math. Soc. 129 (2001), 1659-1663; DOI: https://doi.org/10.1090/S0002-9939-00-05875-5; Published electronically: December 13, 2000; PDF

Linear maps preserving ideals of $C^{*}$-algebras: Sang Og Kim; Proc. Amer. Math. Soc. 129 (2001), 1665-1668; DOI: https://doi.org/10.1090/S0002-9939-00-06003-2; Published electronically: October 25, 2000; PDF

Estimates for the principal spectrum point for certain time-dependent parabolic operators: V. Hutson, W. Shen and G. T. Vickers; Proc. Amer. Math. Soc. 129 (2001), 1669-1679; DOI: https://doi.org/10.1090/S0002-9939-00-05808-1; Published electronically: November 2, 2000; PDF

Regularity of the spectrum for the almost Mathieu operator: Norbert Riedel; Proc. Amer. Math. Soc. 129 (2001), 1681-1687; DOI: https://doi.org/10.1090/S0002-9939-00-05752-X; Published electronically: October 31, 2000; PDF

Residually finite dimensional and AF-embeddable $C^*$-algebras: Huaxin Lin; Proc. Amer. Math. Soc. 129 (2001), 1689-1696; DOI: https://doi.org/10.1090/S0002-9939-00-05744-0; Published electronically: November 2, 2000; PDF

Cotlar-Stein lemma and the $Tb$ theorem: Y.-S. Han and J. Zhang; Proc. Amer. Math. Soc. 129 (2001), 1697-1703; DOI: https://doi.org/10.1090/S0002-9939-00-05707-5; Published electronically: November 2, 2000; PDF

A lifting theorem for symmetric commutants: Gelu Popescu; Proc. Amer. Math. Soc. 129 (2001), 1705-1711; DOI: https://doi.org/10.1090/S0002-9939-00-05750-6; Published electronically: October 31, 2000; PDF

Asymptotic behavior of Fourier transforms of self-similar measures: Tian-You Hu; Proc. Amer. Math. Soc. 129 (2001), 1713-1720; DOI: https://doi.org/10.1090/S0002-9939-00-05709-9; Published electronically: November 3, 2000; PDF

Hilbert modules over a class of semicrossed products: Dale R. Buske; Proc. Amer. Math. Soc. 129 (2001), 1721-1726; DOI: https://doi.org/10.1090/S0002-9939-00-05691-4; Published electronically: November 2, 2000; PDF

Products of EP operators on Hilbert spaces: Dragan S. Djordjević; Proc. Amer. Math. Soc. 129 (2001), 1727-1731; DOI: https://doi.org/10.1090/S0002-9939-00-05701-4; Published electronically: October 31, 2000; PDF

Local derivations of reflexive algebras II: Jing Wu; Proc. Amer. Math. Soc. 129 (2001), 1733-1737; DOI: https://doi.org/10.1090/S0002-9939-01-05792-6; Published electronically: January 17, 2001; PDF

Convex curves, Radon transforms and convolution operators defined by singular measures: Fulvio Ricci and Giancarlo Travaglini; Proc. Amer. Math. Soc. 129 (2001), 1739-1744; DOI: https://doi.org/10.1090/S0002-9939-00-05751-8; Published electronically: October 31, 2000; PDF

Imaginary powers of Laplace operators: Adam Sikora and James Wright; Proc. Amer. Math. Soc. 129 (2001), 1745-1754; DOI: https://doi.org/10.1090/S0002-9939-00-05754-3; Published electronically: October 31, 2000; PDF

Menger curvature and $C^{1}$ regularity of fractals: Yong Lin and Pertti Mattila; Proc. Amer. Math. Soc. 129 (2001), 1755-1762; DOI: https://doi.org/10.1090/S0002-9939-00-05814-7; Published electronically: October 31, 2000; PDF

Exemples séparant certaines classes d’algèbres topologiques: Z. Abdelali and M. Chidami; Proc. Amer. Math. Soc. 129 (2001), 1763-1767; DOI: https://doi.org/10.1090/S0002-9939-00-05685-9; Published electronically: December 13, 2000; PDF

Transformation formulas for the Bergman kernels and projections of Reinhardt domains: Siqi Fu; Proc. Amer. Math. Soc. 129 (2001), 1769-1773; DOI: https://doi.org/10.1090/S0002-9939-00-05804-4; Published electronically: November 3, 2000; PDF

The asymptotic behavior of a class of nonlinear delay difference equations: Hassan Sedaghat and Wendi Wang; Proc. Amer. Math. Soc. 129 (2001), 1775-1783; DOI: https://doi.org/10.1090/S0002-9939-00-05974-8; Published electronically: November 21, 2000; PDF

A noncommutative moment problem: Don Hadwin; Proc. Amer. Math. Soc. 129 (2001), 1785-1791; DOI: https://doi.org/10.1090/S0002-9939-01-05772-0; Published electronically: January 23, 2001; PDF

Universally meager sets: Piotr Zakrzewski; Proc. Amer. Math. Soc. 129 (2001), 1793-1798; DOI: https://doi.org/10.1090/S0002-9939-00-05726-9; Published electronically: November 2, 2000; PDF

The abelianization of almost free groups: Charly Bitton; Proc. Amer. Math. Soc. 129 (2001), 1799-1803; DOI: https://doi.org/10.1090/S0002-9939-00-05730-0; Published electronically: November 21, 2000; PDF

First return probabilities of birth and death chains and associated orthogonal polynomials: Holger Dette; Proc. Amer. Math. Soc. 129 (2001), 1805-1815; DOI: https://doi.org/10.1090/S0002-9939-00-05699-9; Published electronically: November 2, 2000; PDF

$C^1$ smoothness of Liouville arcs in Arnol’d tongues: Lionel Slammert; Proc. Amer. Math. Soc. 129 (2001), 1817-1823; DOI: https://doi.org/10.1090/S0002-9939-01-06043-9; Published electronically: January 23, 2001; PDF

The Postnikov Tower and the Steenrod problem: Ming-Li Chen; Proc. Amer. Math. Soc. 129 (2001), 1825-1831; DOI: https://doi.org/10.1090/S0002-9939-00-05766-X; Published electronically: October 31, 2000; PDF

Estimating the rational LS-category of elliptic spaces: Sonia Ghorbal and Barry Jessup; Proc. Amer. Math. Soc. 129 (2001), 1833-1842; DOI: https://doi.org/10.1090/S0002-9939-00-05739-7; Published electronically: October 31, 2000; PDF

Geodesics on the space of Lagrangian submanifolds in cotangent bundles: Darko Milinković; Proc. Amer. Math. Soc. 129 (2001), 1843-1851; DOI: https://doi.org/10.1090/S0002-9939-00-05851-2; Published electronically: November 3, 2000; PDF

Continuous selections and reflexive Banach spaces: Valentin Gutev and Stoyan Nedev; Proc. Amer. Math. Soc. 129 (2001), 1853-1860; DOI: https://doi.org/10.1090/S0002-9939-00-05740-3; Published electronically: November 3, 2000; PDF

Subdivision schemes for iterated function systems: Charles A. Micchelli, Thomas Sauer and Yuesheng Xu; Proc. Amer. Math. Soc. 129 (2001), 1861-1872; DOI: https://doi.org/10.1090/S0002-9939-00-05966-9; Published electronically: December 7, 2000; PDF

The pq-condition for $3$-manifold groups: Siddhartha Gadgil; Proc. Amer. Math. Soc. 129 (2001), 1873-1875; DOI: https://doi.org/10.1090/S0002-9939-00-05880-9; Published electronically: November 30, 2000; PDF