Contents of Volume 137, Number 5

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An upper bound on the characteristic polynomial of a nonnegative matrix leading to a proof of the Boyle-Handelman conjecture

Assaf Goldberger; Michael Neumann
Proc. Amer. Math. Soc. 137 (2009), 1529-1538.
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Two way subtable sum problems and quadratic Gröbner bases

Hidefumi Ohsugi; Takayuki Hibi
Proc. Amer. Math. Soc. 137 (2009), 1539-1542.
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Intersection of modular polynomials

Jie Ling
Proc. Amer. Math. Soc. 137 (2009), 1543-1549.
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Capping groups and some cases of the Fontaine-Mazur conjecture

Frauke M. Bleher; Ted Chinburg; Jennifer Froelich
Proc. Amer. Math. Soc. 137 (2009), 1551-1560.
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Induced quasi-actions: A remark

Bruce Kleiner; Bernhard Leeb
Proc. Amer. Math. Soc. 137 (2009), 1561-1567.
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Rationality of the Folsom-Ono grid

P. Guerzhoy
Proc. Amer. Math. Soc. 137 (2009), 1569-1577.
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The Folsom-Ono grid contains only integers

Sander Zwegers
Proc. Amer. Math. Soc. 137 (2009), 1579-1584.
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On strings of consecutive integers with a distinct number of prime factors

Jean-Marie De Koninck; John B. Friedlander; Florian Luca
Proc. Amer. Math. Soc. 137 (2009), 1585-1592.
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Splitting necklaces and measurable colorings of the real line

Noga Alon; Jarosław Grytczuk; Michał Lason; Mateusz Michałek
Proc. Amer. Math. Soc. 137 (2009), 1593-1599.
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The Gauss-Bonnet formula of polytopal manifolds and the characterization of embedded graphs with nonnegative curvature

Beifang Chen
Proc. Amer. Math. Soc. 137 (2009), 1601-1611.
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Polyhedral embeddings of snarks in orientable surfaces

Martin Kochol
Proc. Amer. Math. Soc. 137 (2009), 1613-1619.
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Jack polynomials and the coinvariant ring of $G(r,p,n)$

Stephen Griffeth
Proc. Amer. Math. Soc. 137 (2009), 1621-1629.
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Threefolds containing Bordiga surfaces as ample divisors

Hidetoshi Maeda
Proc. Amer. Math. Soc. 137 (2009), 1631-1639.
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A new bound on the number of special fibers in a pencil of curves

S. Yuzvinsky
Proc. Amer. Math. Soc. 137 (2009), 1641-1648.
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First neighborhood complete ideals in two-dimensional Muhly local domains are projectively full

Raymond Debremaeker
Proc. Amer. Math. Soc. 137 (2009), 1649-1656.
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Essentialities in additive bases

Peter Hegarty
Proc. Amer. Math. Soc. 137 (2009), 1657-1661.
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Leonhard Euler and a $q$-analogue of the logarithm

Erik Koelink; Walter Van Assche
Proc. Amer. Math. Soc. 137 (2009), 1663-1676.
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Optimization of the first eigenvalue in problems involving the $p$-Laplacian

Fabrizio Cuccu; Behrouz Emamizadeh; Giovanni Porru
Proc. Amer. Math. Soc. 137 (2009), 1677-1687.
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Restriction and extension of Fourier multipliers between weighted $L^p$ spaces on $\mathbb {R}^n$ and $\mathbb {T}^n$

Kenneth F. Andersen; Parasar Mohanty
Proc. Amer. Math. Soc. 137 (2009), 1689-1697.
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Interlacing and nonorthogonality of spectral polynomials for the Lamé operator

A. Bourget; T. McMillen; A. Vargas
Proc. Amer. Math. Soc. 137 (2009), 1699-1710.
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Asymptotic analysis of a Dirichlet problem for the heat equation on a coated body

Jingyu Li; Steve Rosencrans; Xuefeng Wang; Kaijun Zhang
Proc. Amer. Math. Soc. 137 (2009), 1711-1721.
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On a conjecture of Tomas Sauer regarding nested ideal interpolation

Boris Shekhtman
Proc. Amer. Math. Soc. 137 (2009), 1723-1728.
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A remark on the regularity of the div-curl system

Irina Mitrea; Marius Mitrea
Proc. Amer. Math. Soc. 137 (2009), 1729-1733.
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Large and moderate deviations for slowly mixing dynamical systems

Ian Melbourne
Proc. Amer. Math. Soc. 137 (2009), 1735-1741.
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Compact factorization of differentiable mappings

Raffaella Cilia; Joaquín M. Gutiérrez; Giuseppe Saluzzo
Proc. Amer. Math. Soc. 137 (2009), 1743-1752.
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Distinguishing properties of Arens irregularity

Zhiguo Hu; Matthias Neufang
Proc. Amer. Math. Soc. 137 (2009), 1753-1761.
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Maps preserving the geometric mean of positive operators

Lajos Molnár
Proc. Amer. Math. Soc. 137 (2009), 1763-1770.
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On period minimal pseudo-Anosov braids

André de Carvalho; Toby Hall; Rupert Venzke
Proc. Amer. Math. Soc. 137 (2009), 1771-1776.
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A condition for spectral continuity of positive elements

S. Mouton
Proc. Amer. Math. Soc. 137 (2009), 1777-1782.
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On injectivity of quasiregular mappings

Tadeusz Iwaniec; Leonid V. Kovalev; Jani Onninen
Proc. Amer. Math. Soc. 137 (2009), 1783-1791.
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A version of Lomonosov's theorem for collections of positive operators

Alexey I. Popov; Vladimir G. Troitsky
Proc. Amer. Math. Soc. 137 (2009), 1793-1800.
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On an open problem regarding totally Fenchel unstable functions

Radu Ioan Bot; Ernö Robert Csetnek
Proc. Amer. Math. Soc. 137 (2009), 1801-1805.
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On the topology of manifolds with positive isotropic curvature

Siddartha Gadgil; Harish Seshadri
Proc. Amer. Math. Soc. 137 (2009), 1807-1811.
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On the linearity of torsion-free nilpotent groups of finite Morley rank

Tuna Altinel; John S. Wilson
Proc. Amer. Math. Soc. 137 (2009), 1813-1821.
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The proper and semi-proper forcing axioms for forcing notions that preserve $\aleph _2$ or $\aleph _3$

Joel David Hamkins; Thomas A. Johnstone
Proc. Amer. Math. Soc. 137 (2009), 1823-1833.
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Palindromic random trigonometric polynomials

J. Brian Conrey; David W. Farmer; Özlem Imamoglu
Proc. Amer. Math. Soc. 137 (2009), 1835-1839.
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Topological complexity of configuration spaces

Michael Farber; Mark Grant
Proc. Amer. Math. Soc. 137 (2009), 1841-1847.
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