Proceedings of the American Mathematical Society

Contents of Volume 112, Number 2
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Good approximations and continued fractions

Cor Kraaikamp and Pierre Liardet

Proc. Amer. Math. Soc. 112 (1991), 303-309

DOI: https://doi.org/10.1090/S0002-9939-1991-1062392-7

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On purity of inertia

David Harbater

Proc. Amer. Math. Soc. 112 (1991), 311-319

DOI: https://doi.org/10.1090/S0002-9939-1991-1064903-4

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On indecomposable modules over directed algebras

Peter Dräxler

Proc. Amer. Math. Soc. 112 (1991), 321-327

DOI: https://doi.org/10.1090/S0002-9939-1991-1062830-X

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Some trigonometric identities related to exact covers

John Beebee

Proc. Amer. Math. Soc. 112 (1991), 329-338

DOI: https://doi.org/10.1090/S0002-9939-1991-1049133-4

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Interpretations into $p$-algebras

O. Cartagena, C. González, R. Lewin and O. Rubilar

Proc. Amer. Math. Soc. 112 (1991), 339-342

DOI: https://doi.org/10.1090/S0002-9939-1991-1049134-6

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Points not as hyperplane sections of projectively normal curves

Edoardo Ballico

Proc. Amer. Math. Soc. 112 (1991), 343-346

DOI: https://doi.org/10.1090/S0002-9939-1991-1052870-9

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Bielliptic curves and symmetric products

Joe Harris and Joe Silverman

Proc. Amer. Math. Soc. 112 (1991), 347-356

DOI: https://doi.org/10.1090/S0002-9939-1991-1055774-0

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Generating finite completely reducible linear groups

L. G. Kovács and Geoffrey R. Robinson

Proc. Amer. Math. Soc. 112 (1991), 357-364

DOI: https://doi.org/10.1090/S0002-9939-1991-1047004-0

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Additive properties of multiplicative subgroups of finite index in fields

Pedro Berrizbeitia

Proc. Amer. Math. Soc. 112 (1991), 365-369

DOI: https://doi.org/10.1090/S0002-9939-1991-1057940-7

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Lebesgue’s theorem of differentiation in Fréchet lattices

Karl-Goswin Grosse-Erdmann

Proc. Amer. Math. Soc. 112 (1991), 371-379

DOI: https://doi.org/10.1090/S0002-9939-1991-1062390-3

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Dimension of certain kernel spaces of linear operators

Zuowei Shen

Proc. Amer. Math. Soc. 112 (1991), 381-390

DOI: https://doi.org/10.1090/S0002-9939-1991-1065091-0

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Multiplicity theory and the outer boundary

John S. Spraker

Proc. Amer. Math. Soc. 112 (1991), 391-392

DOI: https://doi.org/10.1090/S0002-9939-1991-1062837-2

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Weighted decay estimate for the wave equation

Valéry Covachev and Vladimir Georgiev

Proc. Amer. Math. Soc. 112 (1991), 393-402

DOI: https://doi.org/10.1090/S0002-9939-1991-1055769-7

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Hypersurfaces in $\textbf {R}^ n$ whose unit normal has small BMO norm

Stephen Semmes

Proc. Amer. Math. Soc. 112 (1991), 403-412

DOI: https://doi.org/10.1090/S0002-9939-1991-1065093-4

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A class of absolute retracts in spaces of integrable functions

Alberto Bressan, Arrigo Cellina and Andrzej Fryszkowski

Proc. Amer. Math. Soc. 112 (1991), 413-418

DOI: https://doi.org/10.1090/S0002-9939-1991-1045587-8

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A symbolic calculus for layer potentials on $C^ 1$ curves and $C^ 1$ curvilinear polygons

Jeff E. Lewis

Proc. Amer. Math. Soc. 112 (1991), 419-427

DOI: https://doi.org/10.1090/S0002-9939-1991-1043413-4

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Note on a theorem of Avakumović

J. L. Geluk

Proc. Amer. Math. Soc. 112 (1991), 429-431

DOI: https://doi.org/10.1090/S0002-9939-1991-1052570-5

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A growth condition for Fourier coefficients of functions of bounded entropy norm

W. Christopher Lang

Proc. Amer. Math. Soc. 112 (1991), 433-439

DOI: https://doi.org/10.1090/S0002-9939-1991-1045141-8

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Homogeneous Fourier multipliers in the plane

Javier Duoandikoetxea and Adela Moyua

Proc. Amer. Math. Soc. 112 (1991), 441-449

DOI: https://doi.org/10.1090/S0002-9939-1991-1057743-3

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On the evaluation of spectral projections onto absolutely continuous parts of a contraction

Alexey V. Rybkin

Proc. Amer. Math. Soc. 112 (1991), 451-455

DOI: https://doi.org/10.1090/S0002-9939-1991-1045149-2

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Local spectrum and generalized spectrum

Mostafa Mbekhta

Proc. Amer. Math. Soc. 112 (1991), 457-463

DOI: https://doi.org/10.1090/S0002-9939-1991-1045142-X

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Some properties of noncommutative $H^ 1$ spaces

Alvaro Arias

Proc. Amer. Math. Soc. 112 (1991), 465-472

DOI: https://doi.org/10.1090/S0002-9939-1991-1045585-4

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A note on the quenching rate

Marek Fila and Josephus Hulshof

Proc. Amer. Math. Soc. 112 (1991), 473-477

DOI: https://doi.org/10.1090/S0002-9939-1991-1055772-7

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Conditional analytic Feynman integrals on abstract Wiener spaces

Dong Myung Chung

Proc. Amer. Math. Soc. 112 (1991), 479-488

DOI: https://doi.org/10.1090/S0002-9939-1991-1060719-3

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Finiteness of the lower spectrum of Schrödinger operators with singular potentials

Jörg Donig

Proc. Amer. Math. Soc. 112 (1991), 489-501

DOI: https://doi.org/10.1090/S0002-9939-1991-1043408-0

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Common fixed points in hyperbolic Riemann surfaces and convex domains

Marco Abate and Jean-Pierre Vigué

Proc. Amer. Math. Soc. 112 (1991), 503-512

DOI: https://doi.org/10.1090/S0002-9939-1991-1065938-8

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Higher monotonicity properties and inequalities for zeros of Bessel functions

Laura Nicolò-Amati Gori, Andrea Laforgia and Martin E. Muldoon

Proc. Amer. Math. Soc. 112 (1991), 513-520

DOI: https://doi.org/10.1090/S0002-9939-1991-1062389-7

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Finite order vanishing of boundary values of holomorphic mappings

Mitja Lakner

Proc. Amer. Math. Soc. 112 (1991), 521-527

DOI: https://doi.org/10.1090/S0002-9939-1991-1065952-2

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Array convergence of functions of the first Baire class

Helmut Knaust

Proc. Amer. Math. Soc. 112 (1991), 529-532

DOI: https://doi.org/10.1090/S0002-9939-1991-1057955-9

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A local classification of $2$-type surfaces in $S^ 3$

Th. Hasanis and Th. Vlachos

Proc. Amer. Math. Soc. 112 (1991), 533-538

DOI: https://doi.org/10.1090/S0002-9939-1991-1059626-1

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New complete genus zero minimal surfaces with embedded parallel ends

Francisco J. López

Proc. Amer. Math. Soc. 112 (1991), 539-544

DOI: https://doi.org/10.1090/S0002-9939-1991-1059629-7

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Harmonic two-forms in four dimensions

Walter Seaman

Proc. Amer. Math. Soc. 112 (1991), 545-548

DOI: https://doi.org/10.1090/S0002-9939-1991-1062836-0

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Self-similar sets. V. Integer matrices and fractal tilings of $\textbf {R}^ n$

Christoph Bandt

Proc. Amer. Math. Soc. 112 (1991), 549-562

DOI: https://doi.org/10.1090/S0002-9939-1991-1036982-1

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The soul at infinity in dimension $4$

Gerard Walschap

Proc. Amer. Math. Soc. 112 (1991), 563-567

DOI: https://doi.org/10.1090/S0002-9939-1991-1049852-X

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Ordered rings over which output sets are recursively enumerable sets

Christian Michaux

Proc. Amer. Math. Soc. 112 (1991), 569-575

DOI: https://doi.org/10.1090/S0002-9939-1991-1041016-9

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A remark on incomparable ultrafilters in the Rudin-Keisler order

Eva Butkovičová

Proc. Amer. Math. Soc. 112 (1991), 577-578

DOI: https://doi.org/10.1090/S0002-9939-1991-1045131-5

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Sharp maximal inequalities for conditionally symmetric martingales and Brownian motion

Gang Wang

Proc. Amer. Math. Soc. 112 (1991), 579-586

DOI: https://doi.org/10.1090/S0002-9939-1991-1059638-8

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A congruence for the signature of an embedded manifold

Robert D. Little

Proc. Amer. Math. Soc. 112 (1991), 587-596

DOI: https://doi.org/10.1090/S0002-9939-1991-1049846-4

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$\alpha$-invariant and $S^ 1$ actions

Kaoru Ono

Proc. Amer. Math. Soc. 112 (1991), 597-600

DOI: https://doi.org/10.1090/S0002-9939-1991-1043417-1

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A remark on a paper of J. S. Ruan: “Invariant subspace of strictly singular operators” [Proc. Amer. Math. Soc. 108 (1990), no. 4, 931–936; MR1002160 (90g:47009)]

Patrick M. Fitzpatrick and Seymour Goldberg

Proc. Amer. Math. Soc. 112 (1991), 601

DOI: https://doi.org/10.1090/S0002-9939-1991-1062386-1

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On measurable local homomorphisms

Zoltán Sasvári

Proc. Amer. Math. Soc. 112 (1991), 603-604

DOI: https://doi.org/10.1090/S0002-9939-1991-1064907-1

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