Contents of Volume 137, Number 6

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Minimal polynomial of an exponential automorphism of $\mathbb {C}^n$

Jakub Zygadło
Proc. Amer. Math. Soc. 137 (2009), 1849-1853.
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MathSciNet review: 2480263

Torsion of the symmetric algebra and implicitization

Laurent Busé; Marc Chardin; Jean-Pierre Jouanolou
Proc. Amer. Math. Soc. 137 (2009), 1855-1865.
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MathSciNet review: 2480264

Reduction theorems for Noether's problem

Ming-chang Kang; Bernat Plans
Proc. Amer. Math. Soc. 137 (2009), 1867-1874.
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MathSciNet review: 2480265

A Littlewood-Richardson rule for Grassmannian permutations

Kevin Purbhoo; Frank Sottile
Proc. Amer. Math. Soc. 137 (2009), 1875-1882.
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MathSciNet review: 2480266

Regularity and Segre-Veronese embeddings

David A. Cox; Evgeny Materov
Proc. Amer. Math. Soc. 137 (2009), 1883-1890.
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MathSciNet review: 2480267

The group of order preserving automorphisms of the ring of differential operators on a Laurent polynomial algebra in prime characteristic

V. V. Bavula
Proc. Amer. Math. Soc. 137 (2009), 1891-1898.
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MathSciNet review: 2480268

Cycles on Nash algebraic models of smooth manifolds

Wojciech Kucharz
Proc. Amer. Math. Soc. 137 (2009), 1899-1906.
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MathSciNet review: 2480269

The ghost dimension of a ring

Mark Hovey; Keir Lockridge
Proc. Amer. Math. Soc. 137 (2009), 1907-1913.
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MathSciNet review: 2480270

The crystal $\mathcal {B}(\infty )$ and extended Nakajima monomials

Hyeonmi Lee
Proc. Amer. Math. Soc. 137 (2009), 1915-1924.
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MathSciNet review: 2480271

Semisimplicity criteria for irreducible Hopf algebras in positive characteristic

Akira Masuoka
Proc. Amer. Math. Soc. 137 (2009), 1925-1932.
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MathSciNet review: 2480272

New results on the least common multiple of consecutive integers

Bakir Farhi; Daniel Kane
Proc. Amer. Math. Soc. 137 (2009), 1933-1939.
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MathSciNet review: 2480273

The Auslander-Reiten conjecture for Gorenstein rings

Tokuji Araya
Proc. Amer. Math. Soc. 137 (2009), 1941-1944.
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MathSciNet review: 2480274

Asymptotic depth of twisted higher direct image sheaves

Renate Bär; Markus Brodmann
Proc. Amer. Math. Soc. 137 (2009), 1945-1950.
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MathSciNet review: 2480275

Descent on elliptic curves and Hilbert's tenth problem

Kirsten Eisenträger; Graham Everest
Proc. Amer. Math. Soc. 137 (2009), 1951-1959.
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MathSciNet review: 2480276

Average behavior of Fourier coefficients of cusp forms

Guangshi Lü
Proc. Amer. Math. Soc. 137 (2009), 1961-1969.
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MathSciNet review: 2480277

Boundary points as limit functions of iterated holomorphic function systems

Kourosh Tavakoli
Proc. Amer. Math. Soc. 137 (2009), 1971-1976.
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MathSciNet review: 2480278

On the existence of infinite energy solutions for nonlinear Schrödinger equations

Pablo Braz e Silva; Lucas C. F. Ferreira; Elder J. Villamizar-Roa
Proc. Amer. Math. Soc. 137 (2009), 1977-1987.
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MathSciNet review: 2480279

Borg-type uniqueness theorems for periodic Jacobi operators with matrix-valued coefficients

Evgeny Korotyaev; Anton Kutsenko
Proc. Amer. Math. Soc. 137 (2009), 1989-1996.
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MathSciNet review: 2480280

In orbifolds, small isoperimetric regions are small balls

Frank Morgan
Proc. Amer. Math. Soc. 137 (2009), 1997-2004.
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MathSciNet review: 2480281

Existence and uniqueness of Tronquée solutions of the fourth-order Jimbo-Miwa second Painlevé equation

Nalini Joshi; Tegan Morrison
Proc. Amer. Math. Soc. 137 (2009), 2005-2014.
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MathSciNet review: 2480282

Electrical response matrix of a regular $2n$-gon

Nathaniel D. Blair-Stahn; David B. Wilson
Proc. Amer. Math. Soc. 137 (2009), 2015-2025.
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MathSciNet review: 2480283

Lipschitzness of the Lempert and Green functions

Nikolai Nikolov; Peter Pflug; Pascal J. Thomas
Proc. Amer. Math. Soc. 137 (2009), 2027-2036.
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MathSciNet review: 2480284

Optimal regularity for the Poisson equation

Lihe Wang; Fengping Yao; Shulin Zhou; Huilian Jia
Proc. Amer. Math. Soc. 137 (2009), 2037-2047.
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MathSciNet review: 2480285

Cyclic behavior of the Cesàro operator on $L_2(0,\infty )$

M. González; F. León-Saavedra
Proc. Amer. Math. Soc. 137 (2009), 2049-2055.
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MathSciNet review: 2480286

A note on Cheeger sets

Alessio Figalli; Francesco Maggi; Aldo Pratelli
Proc. Amer. Math. Soc. 137 (2009), 2057-2062.
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MathSciNet review: 2480287

When lower entropy implies stronger Devaney chaos

Grzegorz Haranczyk; Dominik Kwietniak
Proc. Amer. Math. Soc. 137 (2009), 2063-2073.
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MathSciNet review: 2480288

Remarks on the blow-up of solutions to a toy model for the Navier-Stokes equations

Isabelle Gallagher; Marius Paicu
Proc. Amer. Math. Soc. 137 (2009), 2075-2083.
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MathSciNet review: 2480289

On gradient Ricci solitons with symmetry

Peter Petersen; William Wylie
Proc. Amer. Math. Soc. 137 (2009), 2085-2092.
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MathSciNet review: 2480290

Area growth rate of the level surface of the potential function on the 3-dimensional steady gradient Ricci soliton

Hongxin Guo
Proc. Amer. Math. Soc. 137 (2009), 2093-2097.
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MathSciNet review: 2480291

$K$-trivial degrees and the jump-traceability hierarchy

George Barmpalias; Rod Downey; Noam Greenberg
Proc. Amer. Math. Soc. 137 (2009), 2099-2109.
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MathSciNet review: 2480292

Equidistribution of dilations of polynomial curves in nilmanifolds

Michael Björklund; Alexander Fish
Proc. Amer. Math. Soc. 137 (2009), 2111-2123.
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MathSciNet review: 2480293

A study of counts of Bernoulli strings via conditional Poisson processes

Fred W. Huffer; Jayaram Sethuraman; Sunder Sethuraman
Proc. Amer. Math. Soc. 137 (2009), 2125-2134.
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MathSciNet review: 2480294

On a problem of Borsuk and Ulam

Alexander Y. Gordon
Proc. Amer. Math. Soc. 137 (2009), 2135-2137.
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MathSciNet review: 2480295

Generic spectral simplicity of polygons

Luc Hillairet; Chris Judge
Proc. Amer. Math. Soc. 137 (2009), 2139-2145.
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MathSciNet review: 2480296

The Laitinen Conjecture for finite solvable Oliver groups

Krzysztof Pawałowski; Toshio Sumi
Proc. Amer. Math. Soc. 137 (2009), 2147-2156.
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MathSciNet review: 2480297

Spanning trees and Khovanov homology

Abhijit Champanerkar; Ilya Kofman
Proc. Amer. Math. Soc. 137 (2009), 2157-2167.
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MathSciNet review: 2480298