Proceedings of the American Mathematical Society

Contents of Volume 111, Number 3
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Norm exponents and representation groups

Hans Opolka

Proc. Amer. Math. Soc. 111 (1991), 595-597

DOI: https://doi.org/10.1090/S0002-9939-1991-1047006-4

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Singular degenerations of Calabi-Yau manifolds and the Weil-Petersson metric

Paul S. Green

Proc. Amer. Math. Soc. 111 (1991), 599-605

DOI: https://doi.org/10.1090/S0002-9939-1991-1042267-X

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On Yamamoto’s reciprocity law

Kenneth S. Williams

Proc. Amer. Math. Soc. 111 (1991), 607-609

DOI: https://doi.org/10.1090/S0002-9939-1991-1047009-X

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Unit groups of completed modular group algebras and the isomorphism problem

Frank Röhl

Proc. Amer. Math. Soc. 111 (1991), 611-618

DOI: https://doi.org/10.1090/S0002-9939-1991-1045598-2

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A partition result for algebraic varieties

Aner Shalev

Proc. Amer. Math. Soc. 111 (1991), 619-624

DOI: https://doi.org/10.1090/S0002-9939-1991-1042273-5

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A generic Torelli-type theorem for singular algebraic curves with an involution

Miroslav Tsanov Jotov

Proc. Amer. Math. Soc. 111 (1991), 625-632

DOI: https://doi.org/10.1090/S0002-9939-1991-1045140-6

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On products of characters in $A_ n$

Ilan Zisser

Proc. Amer. Math. Soc. 111 (1991), 633-641

DOI: https://doi.org/10.1090/S0002-9939-1991-1043422-5

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A result by Kulikov that does not extend to modules over general valuation domains

L. Salce and P. Zanardo

Proc. Amer. Math. Soc. 111 (1991), 643-649

DOI: https://doi.org/10.1090/S0002-9939-1991-1043419-5

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Functorial finite subcategories over triangular matrix rings

S. O. Smalø

Proc. Amer. Math. Soc. 111 (1991), 651-656

DOI: https://doi.org/10.1090/S0002-9939-1991-1028295-9

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On $p$-$C^ *$ summing operators

Krzysztof Nowak

Proc. Amer. Math. Soc. 111 (1991), 657-662

DOI: https://doi.org/10.1090/S0002-9939-1991-1034881-2

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On the extensions of vector-valued Loeb measures

Horst Osswald and Yeneng Sun

Proc. Amer. Math. Soc. 111 (1991), 663-675

DOI: https://doi.org/10.1090/S0002-9939-1991-1047007-6

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Periodically perturbed nonconservative systems of Liénard type

M. N. Nkashama

Proc. Amer. Math. Soc. 111 (1991), 677-682

DOI: https://doi.org/10.1090/S0002-9939-1991-1057959-6

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Basis of wavelets and atomic decompositions of $H^ 1(\textbf {R}^ n)$ and $H^ 1(\textbf {R}^ n\times \textbf {R}^ n)$

J. Aguirre, M. Escobedo, J. C. Peral and Ph. Tchamitchian

Proc. Amer. Math. Soc. 111 (1991), 683-693

DOI: https://doi.org/10.1090/S0002-9939-1991-1050015-2

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A sampling theorem for a class of pseudoanalytic functions

J. L. Schiff and W. J. Walker

Proc. Amer. Math. Soc. 111 (1991), 695-699

DOI: https://doi.org/10.1090/S0002-9939-1991-1045599-4

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Convergence of arguments of Blaschke products in $L_ p$-metrics

A. V. Rybkin

Proc. Amer. Math. Soc. 111 (1991), 701-708

DOI: https://doi.org/10.1090/S0002-9939-1991-1010000-3

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The first sign change of a cosine polynomial

Jiang Zeng

Proc. Amer. Math. Soc. 111 (1991), 709-716

DOI: https://doi.org/10.1090/S0002-9939-1991-1000327-3

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Global hypoellipticity of a Mathieu operator

Masafumi Yoshino

Proc. Amer. Math. Soc. 111 (1991), 717-720

DOI: https://doi.org/10.1090/S0002-9939-1991-1042277-2

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On a singular nonlinear elliptic boundary-value problem

A. C. Lazer and P. J. McKenna

Proc. Amer. Math. Soc. 111 (1991), 721-730

DOI: https://doi.org/10.1090/S0002-9939-1991-1037213-9

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Positiveness of nonnegative supersolutions of elliptic equations

Xi Ting Liang and Ming Qi Yu

Proc. Amer. Math. Soc. 111 (1991), 731-742

DOI: https://doi.org/10.1090/S0002-9939-1991-1087007-3

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Algebras of invariant functions on the Šilov boundary of generalized half-planes

Giovanna Carcano

Proc. Amer. Math. Soc. 111 (1991), 743-753

DOI: https://doi.org/10.1090/S0002-9939-1991-1039253-2

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Convolution equations in certain Banach spaces

Alexander L. Koldobskii

Proc. Amer. Math. Soc. 111 (1991), 755-765

DOI: https://doi.org/10.1090/S0002-9939-1991-1034886-1

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Compactness in $L_ 1$, Dunford-Pettis operators, geometry of Banach spaces

Maria Girardi

Proc. Amer. Math. Soc. 111 (1991), 767-777

DOI: https://doi.org/10.1090/S0002-9939-1991-1039256-8

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Regularity of the $\overline \partial$-Neumann problem

So-Chin Chen

Proc. Amer. Math. Soc. 111 (1991), 779-785

DOI: https://doi.org/10.1090/S0002-9939-1991-1049842-7

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On the cohomological equivalence of a class of functions under an irrational rotation of bounded type

Lawrence Baggett and Kathy Merrill

Proc. Amer. Math. Soc. 111 (1991), 787-793

DOI: https://doi.org/10.1090/S0002-9939-1991-1042261-9

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Remarks on blow up for a nonlinear parabolic equation with a gradient term

Marek Fila

Proc. Amer. Math. Soc. 111 (1991), 795-801

DOI: https://doi.org/10.1090/S0002-9939-1991-1052569-9

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Cusp forms associated to rank $2$ parabolic subgroups of Kleinian groups

Irwin Kra

Proc. Amer. Math. Soc. 111 (1991), 803-814

DOI: https://doi.org/10.1090/S0002-9939-1991-1056679-1

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A sphere theorem for reverse volume pinching on even-dimensional manifolds

Leslie Coghlan and Yoe Itokawa

Proc. Amer. Math. Soc. 111 (1991), 815-819

DOI: https://doi.org/10.1090/S0002-9939-1991-1042262-0

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$Q$-sets, Sierpiński sets, and rapid filters

Haim Judah and Saharon Shelah

Proc. Amer. Math. Soc. 111 (1991), 821-832

DOI: https://doi.org/10.1090/S0002-9939-1991-1045594-5

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Varieties with cofinal sets: examples and amalgamation

Peter Bruyns and Henry Rose

Proc. Amer. Math. Soc. 111 (1991), 833-840

DOI: https://doi.org/10.1090/S0002-9939-1991-1039528-7

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Partitioning pairs of countable sets

Stevo Todorčević

Proc. Amer. Math. Soc. 111 (1991), 841-844

DOI: https://doi.org/10.1090/S0002-9939-1991-1036992-4

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Measures on Boolean algebras

Wiesław Główczyński

Proc. Amer. Math. Soc. 111 (1991), 845-849

DOI: https://doi.org/10.1090/S0002-9939-1991-1050019-X

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Mean number of real zeros of a random trigonometric polynomial

J. Ernest Wilkins

Proc. Amer. Math. Soc. 111 (1991), 851-863

DOI: https://doi.org/10.1090/S0002-9939-1991-1039266-0

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CE-equivalence, $UV^ k$-equivalence and dimension of compacta

Peter Mrozik

Proc. Amer. Math. Soc. 111 (1991), 865-867

DOI: https://doi.org/10.1090/S0002-9939-1991-1057958-4

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Free loop spaces of finite complexes have infinite category

Y. Félix, J. C. Thomas and M. Vigué-Poirrier

Proc. Amer. Math. Soc. 111 (1991), 869-875

DOI: https://doi.org/10.1090/S0002-9939-1991-1025277-8

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Existence d’applications harmoniques tordues à valeurs dans les variétés à courbure négative

François Labourie

Proc. Amer. Math. Soc. 111 (1991), 877-882

DOI: https://doi.org/10.1090/S0002-9939-1991-1049845-2

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A note on cobordism of surface links in $S^ 4$

Masahico Saito

Proc. Amer. Math. Soc. 111 (1991), 883-887

DOI: https://doi.org/10.1090/S0002-9939-1991-1087008-5

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