Proceedings of the American Mathematical Society

Contents of Volume 112, Number 3
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What makes $\textrm {Tor}^ R_ 1(R/I,I)$ free?

Shiro Goto and Naoyoshi Suzuki

Proc. Amer. Math. Soc. 112 (1991), 605-611

DOI: https://doi.org/10.1090/S0002-9939-1991-1052871-0

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Integral domains with finitely generated groups of divisibility

D. D. Anderson

Proc. Amer. Math. Soc. 112 (1991), 613-618

DOI: https://doi.org/10.1090/S0002-9939-1991-1055765-X

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Algebras of finite self-injective dimension

Mitsuo Hoshino

Proc. Amer. Math. Soc. 112 (1991), 619-622

DOI: https://doi.org/10.1090/S0002-9939-1991-1047011-8

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$\omega !$ can be a nontrivial automorphism group

Judith Roitman

Proc. Amer. Math. Soc. 112 (1991), 623-628

DOI: https://doi.org/10.1090/S0002-9939-1991-1059636-4

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On the compositum of two power series rings

Shreeram S. Abhyankar, William Heinzer and Sylvia Wiegand

Proc. Amer. Math. Soc. 112 (1991), 629-636

DOI: https://doi.org/10.1090/S0002-9939-1991-1057740-8

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Embedding Galois problems and reduced norms

Teresa Crespo

Proc. Amer. Math. Soc. 112 (1991), 637-639

DOI: https://doi.org/10.1090/S0002-9939-1991-1057951-1

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Auslander-Reiten triangles in derived categories of finite-dimensional algebras

Dieter Happel

Proc. Amer. Math. Soc. 112 (1991), 641-648

DOI: https://doi.org/10.1090/S0002-9939-1991-1045137-6

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The group determinant determines the group

Edward Formanek and David Sibley

Proc. Amer. Math. Soc. 112 (1991), 649-656

DOI: https://doi.org/10.1090/S0002-9939-1991-1062831-1

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Finitely embedded commutative rings

Carl Faith

Proc. Amer. Math. Soc. 112 (1991), 657-659

DOI: https://doi.org/10.1090/S0002-9939-1991-1057942-0

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Comaximizable primes

Raymond C. Heitmann and Stephen McAdam

Proc. Amer. Math. Soc. 112 (1991), 661-669

DOI: https://doi.org/10.1090/S0002-9939-1991-1049136-X

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On small Iwasawa invariants and imaginary quadratic fields

Jonathan W. Sands

Proc. Amer. Math. Soc. 112 (1991), 671-684

DOI: https://doi.org/10.1090/S0002-9939-1991-1057961-4

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Henselian rings and Weierstrass polynomials

Budh Nashier

Proc. Amer. Math. Soc. 112 (1991), 685-690

DOI: https://doi.org/10.1090/S0002-9939-1991-1057944-4

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Automorphisms of $\textrm {SL}_ 2$ of imaginary quadratic integers

John Smillie and Karen Vogtmann

Proc. Amer. Math. Soc. 112 (1991), 691-699

DOI: https://doi.org/10.1090/S0002-9939-1991-1065094-6

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Some operator-theoretic calculus for positive definite kernels

Ameer Athavale

Proc. Amer. Math. Soc. 112 (1991), 701-708

DOI: https://doi.org/10.1090/S0002-9939-1991-1068114-8

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An $n\times n$ matrix of linear maps of a $C^ *$-algebra

Ching Yun Suen

Proc. Amer. Math. Soc. 112 (1991), 709-712

DOI: https://doi.org/10.1090/S0002-9939-1991-1069296-4

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Lower estimate in Littlewood’s conjecture on the mean spherical derivative of a polynomial and iteration theory

A. È. Erëmenko

Proc. Amer. Math. Soc. 112 (1991), 713-715

DOI: https://doi.org/10.1090/S0002-9939-1991-1065943-1

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Exceptional $q$-Askey-Wilson polynomials and continued fractions

Dharma P. Gupta and David R. Masson

Proc. Amer. Math. Soc. 112 (1991), 717-727

DOI: https://doi.org/10.1090/S0002-9939-1991-1059625-X

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The stability of certain functional equations

John A. Baker

Proc. Amer. Math. Soc. 112 (1991), 729-732

DOI: https://doi.org/10.1090/S0002-9939-1991-1052568-7

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The stable rank of crossed products of sectional $C^ *$-algebras by compact Lie groups

Eckart Schulz

Proc. Amer. Math. Soc. 112 (1991), 733-744

DOI: https://doi.org/10.1090/S0002-9939-1991-1042272-3

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Principal distributions for almost unperturbed Schrödinger pairs of operators

Daoxing Xia

Proc. Amer. Math. Soc. 112 (1991), 745-754

DOI: https://doi.org/10.1090/S0002-9939-1991-1042275-9

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Some trace formulas for almost unperturbed Schrödinger pairs of operators

Daoxing Xia

Proc. Amer. Math. Soc. 112 (1991), 755-764

DOI: https://doi.org/10.1090/S0002-9939-1991-1042276-0

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A hypercyclic operator whose adjoint is also hypercyclic

Héctor Salas

Proc. Amer. Math. Soc. 112 (1991), 765-770

DOI: https://doi.org/10.1090/S0002-9939-1991-1049848-8

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Carleson measures in Hardy and weighted Bergman spaces of polydiscs

F. Jafari

Proc. Amer. Math. Soc. 112 (1991), 771-781

DOI: https://doi.org/10.1090/S0002-9939-1991-1039533-0

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Counterexamples concerning bitriangular operators

M. S. Lambrou and W. E. Longstaff

Proc. Amer. Math. Soc. 112 (1991), 783-787

DOI: https://doi.org/10.1090/S0002-9939-1991-1052576-6

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Estimates for inverses of $e^ {int}$ in some quotient algebras of $A^ +$

Elhassan Zerouali

Proc. Amer. Math. Soc. 112 (1991), 789-793

DOI: https://doi.org/10.1090/S0002-9939-1991-1037228-0

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On infinitely differentiable and Gevrey vectors for representation

A. F. M. ter Elst

Proc. Amer. Math. Soc. 112 (1991), 795-802

DOI: https://doi.org/10.1090/S0002-9939-1991-1045134-0

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A note on a global stability theorem of M. W. Hirsch

Ji Fa Jiang

Proc. Amer. Math. Soc. 112 (1991), 803-806

DOI: https://doi.org/10.1090/S0002-9939-1991-1043411-0

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Sums of powers of derivatives

Jan Mařík and Clifford E. Weil

Proc. Amer. Math. Soc. 112 (1991), 807-817

DOI: https://doi.org/10.1090/S0002-9939-1991-1042268-1

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Boundaries and modular ideals on locally compact groups

William Moran and George A. Willis

Proc. Amer. Math. Soc. 112 (1991), 819-827

DOI: https://doi.org/10.1090/S0002-9939-1991-1033960-3

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Bernstein-type inequalities for the derivatives of constrained polynomials

Tamás Erdélyi

Proc. Amer. Math. Soc. 112 (1991), 829-838

DOI: https://doi.org/10.1090/S0002-9939-1991-1036985-7

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Explicit construction of universal operator algebras and applications to polynomial factorization

David P. Blecher and Vern I. Paulsen

Proc. Amer. Math. Soc. 112 (1991), 839-850

DOI: https://doi.org/10.1090/S0002-9939-1991-1049839-7

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Mean growth of Bloch functions and Makarov’s law of the iterated logarithm

Rodrigo Bañuelos and Charles N. Moore

Proc. Amer. Math. Soc. 112 (1991), 851-854

DOI: https://doi.org/10.1090/S0002-9939-1991-1057948-1

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The spectral extension property and extension of multiplicative linear functionals

Michael J. Meyer

Proc. Amer. Math. Soc. 112 (1991), 855-861

DOI: https://doi.org/10.1090/S0002-9939-1991-1052578-X

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Pseudospectral operators and the pointwise ergodic theorem

R. E. Bradley

Proc. Amer. Math. Soc. 112 (1991), 863-870

DOI: https://doi.org/10.1090/S0002-9939-1991-1050017-6

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Simple $C^ *$-algebras with continuous scales and simple corona algebras

Hua Xin Lin

Proc. Amer. Math. Soc. 112 (1991), 871-880

DOI: https://doi.org/10.1090/S0002-9939-1991-1079711-8

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A fixed point approach to homological perturbation theory

Donald W. Barnes and Larry A. Lambe

Proc. Amer. Math. Soc. 112 (1991), 881-892

DOI: https://doi.org/10.1090/S0002-9939-1991-1057939-0

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Spread and local properties

Basil Coutant

Proc. Amer. Math. Soc. 112 (1991), 893-898

DOI: https://doi.org/10.1090/S0002-9939-1991-1045132-7

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Permutation groups in Euclidean Ramsey theory

Igor Kříž

Proc. Amer. Math. Soc. 112 (1991), 899-907

DOI: https://doi.org/10.1090/S0002-9939-1991-1065087-9

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The derivative of the exponential map

Carl Herz

Proc. Amer. Math. Soc. 112 (1991), 909-911

DOI: https://doi.org/10.1090/S0002-9939-1991-1086328-8

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A correction to: “On extensions of models of strong fragments of arithmetic” [Proc. Amer. Math. Soc. 108 (1990), no. 1, 223–232; MR0984802 (90d:03123)]

Roman Kossak

Proc. Amer. Math. Soc. 112 (1991), 913-914

DOI: https://doi.org/10.1090/S0002-9939-1991-1049844-0

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