Contents of Volume 129, Number 8

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On the solutions of the congruence $n^{2}\equiv 1~(mod~\phi ^{2}(n))$

Florian Luca; Michal Krizek
Proc. Amer. Math. Soc. 129 (2001), 2191-2196.
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Symmetric numerical semigroups with arbitrary multiplicity and embedding dimension

J. C. Rosales
Proc. Amer. Math. Soc. 129 (2001), 2197-2203.
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On the number of maximal sum-free sets

Tomasz Luczak; Tomasz Schoen
Proc. Amer. Math. Soc. 129 (2001), 2205-2207.
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Splitting sets in integral domains

D. D. Anderson; Muhammad Zafrullah
Proc. Amer. Math. Soc. 129 (2001), 2209-2217.
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Signs in the $cd$-index of Eulerian partially ordered sets

Margaret M. Bayer
Proc. Amer. Math. Soc. 129 (2001), 2219-2225.
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On birational morphisms between pencils of Del Pezzo surfaces

Vitaly Vologodsky
Proc. Amer. Math. Soc. 129 (2001), 2227-2234.
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Hypercentral units in integral group rings

Yuanlin Li; M. M. Parmenter
Proc. Amer. Math. Soc. 129 (2001), 2235-2238.
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Inequalities for products of spectral radii

M. Omladic; H. Radjavi; P. Rosenthal; A. Sourour
Proc. Amer. Math. Soc. 129 (2001), 2239-2243.
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Iterative approximation of fixed points of Lipschitz pseudocontractive maps

C. E. Chidume
Proc. Amer. Math. Soc. 129 (2001), 2245-2251.
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A random variational principle with application to weak Hadamard differentiability of convex integral functionals

Francesco S. De Blasi; Pando Gr. Georgiev
Proc. Amer. Math. Soc. 129 (2001), 2253-2260.
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An asymmetric Putnam--Fuglede theorem for unbounded operators

Jan Stochel
Proc. Amer. Math. Soc. 129 (2001), 2261-2271.
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An equivalent definition of functions of the first Baire class

Peng-Yee Lee; Wee-Kee Tang; Dongsheng Zhao
Proc. Amer. Math. Soc. 129 (2001), 2273-2275.
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Compact operators whose real and imaginary parts are positive

Rajendra Bhatia; Xingzhi Zhan
Proc. Amer. Math. Soc. 129 (2001), 2277-2281.
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An inequality for the norm of a polynomial factor

Igor E. Pritsker
Proc. Amer. Math. Soc. 129 (2001), 2283-2291.
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Iteration processes for approximating fixed points of operators of monotone type

Gu Feng
Proc. Amer. Math. Soc. 129 (2001), 2293-2300.
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The Fucik spectrum and critical groups

Kanishka Perera; Martin Schechter
Proc. Amer. Math. Soc. 129 (2001), 2301-2308.
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Criteria of Pólya type for radial positive definite functions

Tilmann Gneiting
Proc. Amer. Math. Soc. 129 (2001), 2309-2318.
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Almost periodic ultradistributions of Beurling and of Roumieu type

M. C. Gómez-Collado
Proc. Amer. Math. Soc. 129 (2001), 2319-2329.
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Sur l'inégalité de Poincaré, à support compact, pour un ou plusieurs champs de vecteurs

Makhlouf Derridj
Proc. Amer. Math. Soc. 129 (2001), 2331-2342.
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A formula for $k$-hyponormality of backstep extensions of subnormal weighted shifts

Il Bong Jung; Chunji Li
Proc. Amer. Math. Soc. 129 (2001), 2343-2351.
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Separation for kernels of Hankel operators

Caixing Gu
Proc. Amer. Math. Soc. 129 (2001), 2353-2358.
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An example on the Mann iteration method for Lipschitz pseudocontractions

C. E. Chidume; S. A. Mutangadura
Proc. Amer. Math. Soc. 129 (2001), 2359-2363.
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Invariant subspaces for bounded operators with large localizable spectrum

Bebe Prunaru
Proc. Amer. Math. Soc. 129 (2001), 2365-2372.
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The Fefferman-Stein type inequality for the Kakeya maximal operator

Hitoshi Tanaka
Proc. Amer. Math. Soc. 129 (2001), 2373-2378.
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On the commutant of operators of multiplication by univalent functions

B. Khani Robati; S. M. Vaezpour
Proc. Amer. Math. Soc. 129 (2001), 2379-2383.
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Sufficient conditions for a linear functional to be multiplicative

K. Seddighi; M. H. Shirdarreh Haghighi
Proc. Amer. Math. Soc. 129 (2001), 2385-2393.
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Polynomial approximation on three-dimensional real-analytic submanifolds of $\mathbf{C}^n$

John T. Anderson; Alexander J. Izzo; John Wermer
Proc. Amer. Math. Soc. 129 (2001), 2395-2402.
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Realisation of special Kähler manifolds as parabolic spheres

Oliver Baues; Vicente Cortés
Proc. Amer. Math. Soc. 129 (2001), 2403-2407.
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Isometric submersions of Finsler manifolds

J. C. Álvarez Paiva; C. E. Durán
Proc. Amer. Math. Soc. 129 (2001), 2409-2417.
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Einstein manifolds and contact geometry

Charles P. Boyer; Krzysztof Galicki
Proc. Amer. Math. Soc. 129 (2001), 2419-2430.
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Finiteness of polyhedral decompositions of cusped hyperbolic manifolds obtained by the Epstein-Penner's method

Hirotaka Akiyoshi
Proc. Amer. Math. Soc. 129 (2001), 2431-2439.
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Borel complexity of the space of probability measures

Abhijit Dasgupta
Proc. Amer. Math. Soc. 129 (2001), 2441-2443.
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$0^{\sharp}$ and elementary end extensions of $V_{\kappa}$

Amir Leshem
Proc. Amer. Math. Soc. 129 (2001), 2445-2450.
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Hypoelliptic random heat kernels: A case study

Richard B. Sowers
Proc. Amer. Math. Soc. 129 (2001), 2451-2460.
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A proof of the homotopy push-out and pull-back lemma

Michihiro Sakai
Proc. Amer. Math. Soc. 129 (2001), 2461-2466.
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Isospectrality and $3$-manifold groups

Daniel Ruberman
Proc. Amer. Math. Soc. 129 (2001), 2467-2471.
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Analytic linearizability of some resonant vector fields

J. Basto-Gonçalves; I. Cruz
Proc. Amer. Math. Soc. 129 (2001), 2473-2481.
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Real groups transitive on complex flag manifolds

Joseph A. Wolf
Proc. Amer. Math. Soc. 129 (2001), 2483-2487.
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Seiberg-Witten invariants for manifolds diffeomorphic outside a circle

Stefano Vidussi
Proc. Amer. Math. Soc. 129 (2001), 2489-2496.
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A note on regular isotopy of singular links

Chichen M. Tsau
Proc. Amer. Math. Soc. 129 (2001), 2497-2502.
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Erratum to ``On the set of topologically invariant means on an algebra of convolution operators on $L^p(G)$''

Edmond E. Granirer
Proc. Amer. Math. Soc. 129 (2001), 2503-2503.
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