Contents of Volume 23, Number 2

Miscellaneous front pages, Bull. Amer. Math. Soc. (N.S.), Volume 23, Number 2 (1990)

Bull. Amer. Math. Soc. 23 (1990)
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Miscellaneous back pages, Bull. Amer. Math. Soc. (N.S.), Volume 23, Number 2 (1990)

Bull. Amer. Math. Soc. 23 (1990)
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Multiplication of distributions

J. F. Colombeau
Bull. Amer. Math. Soc. 23 (1990), 251-268.
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MathSciNet review: 1028141

Exponential sums over finite fields and differential equations over the complex numbers: Some interactions

Nicholas M. Katz
Bull. Amer. Math. Soc. 23 (1990), 269-309.
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MathSciNet review: 1032857

Elliptic methods in symplectic geometry

Dusa McDuff
Bull. Amer. Math. Soc. 23 (1990), 311-358.
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MathSciNet review: 1039425

Hurwitz groups: A brief survey

Marston Conder
Bull. Amer. Math. Soc. 23 (1990), 359-370.
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MathSciNet review: 1041434

Torsion points on elliptic curves

S. Kamienny
Bull. Amer. Math. Soc. 23 (1990), 371-373.
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MathSciNet review: 1058689

The behavior of the Mordell-Weil group of elliptic curves

Armand Brumer; Oisín McGuinness
Bull. Amer. Math. Soc. 23 (1990), 375-382.
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MathSciNet review: 1044170

A new upper bound for the minimum of an integral lattice of determinant 1

J. H. Conway; N. J. A. Sloane
Bull. Amer. Math. Soc. 23 (1990), 383-387.
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MathSciNet review: 1046123

$L$ functions for the group $G_2$

I. Piatetski-Shapiro; S. Rallis; G. Schiffmann
Bull. Amer. Math. Soc. 23 (1990), 389-399.
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MathSciNet review: 1031583

Subgroups of polynomial automorphisms

Edwin Connell; John Zweibel
Bull. Amer. Math. Soc. 23 (1990), 401-406.
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MathSciNet review: 1039423

Circle packings in the approximation of conformal mappings

Kenneth Stephenson
Bull. Amer. Math. Soc. 23 (1990), 407-415.
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MathSciNet review: 1049434

The topology of complete one-ended minimal surfaces and Heegaard surfaces in ${\text{R}}^3$

Charles Frohman; William H. Meeks III
Bull. Amer. Math. Soc. 23 (1990), 417-421.
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MathSciNet review: 1033085

A finiteness theorem for Ricci curvature in dimension three

Shun-Hui Zhu
Bull. Amer. Math. Soc. 23 (1990), 423-426.
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MathSciNet review: 1027905

Simply connected manifolds of positive scalar curvature

Stephan Stolz
Bull. Amer. Math. Soc. 23 (1990), 427-432.
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MathSciNet review: 1056561

Isospectral families of conformally equivalent Riemannian metrics

Robert Brooks; Carolyn Gordon
Bull. Amer. Math. Soc. 23 (1990), 433-436.
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MathSciNet review: 1033084

Complete noncompact Kähler manifolds with positive holomorphic bisectional curvature

Wan-Xiong Shi
Bull. Amer. Math. Soc. 23 (1990), 437-440.
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MathSciNet review: 1044171

Some new results on the topology of nonsingular real algebraic sets

Selman Akbulut; Henry King
Bull. Amer. Math. Soc. 23 (1990), 441-446.
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MathSciNet review: 1053986

Exotic cohomology and index theory

John Roe
Bull. Amer. Math. Soc. 23 (1990), 447-453.
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MathSciNet review: 1049433

The tensor product problem for reflexive algebras

Jon Kraus
Bull. Amer. Math. Soc. 23 (1990), 455-460.
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MathSciNet review: 1027903

Triangular algebras and ideals of nest algebras

John Lindsay Orr
Bull. Amer. Math. Soc. 23 (1990), 461-467.
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MathSciNet review: 1053988

Antimonotonicity: Concurrent creation and annihilation of periodic orbits

I. Kan; J. A. Yorke
Bull. Amer. Math. Soc. 23 (1990), 469-476.
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MathSciNet review: 1031582

A new formulation of the generalized Toda lattice equations and their fixed point analysis via the momentum map

Anthony M. Bloch; Roger W. Brockett; Tudor S. Ratiu
Bull. Amer. Math. Soc. 23 (1990), 477-485.
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MathSciNet review: 1027895

On the complete integrability of some Lax systems on ${\text{GL}}\left( {n,R} \right) \times {\text{GL}}\left( {n,R} \right)$

Luen-Chau Li
Bull. Amer. Math. Soc. 23 (1990), 487-493.
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MathSciNet review: 1028140

A simplified version of the abstract Cauchy-Kowalewski theorem with weak singularities

Russel E. Caflisch
Bull. Amer. Math. Soc. 23 (1990), 495-500.
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MathSciNet review: 1027897

Zero-order perturbations of the subelliptic Laplacian on the Heisenberg group and their uniqueness properties

Nicola Garofalo; Ermanno Lanconelli
Bull. Amer. Math. Soc. 23 (1990), 501-511.
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MathSciNet review: 1039424

Subcriticality, positivity, and gaugeability of the Schrödinger operator

Z. Zhao
Bull. Amer. Math. Soc. 23 (1990), 513-517.
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MathSciNet review: 1043084

$L^p \to L^{p'}$ estimates for time-dependent Schrödinger operators

J. L. Journé; A. Soffer; C. D. Sogge
Bull. Amer. Math. Soc. 23 (1990), 519-524.
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MathSciNet review: 1035837

On the energy of a large atom

Charles L. Fefferman; Luis A. Seco
Bull. Amer. Math. Soc. 23 (1990), 525-530.
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MathSciNet review: 1056556

Shape optimization for Dirichlet problems: Relaxed solutions and optimality conditions

Giuseppe Buttazzo; Gianni Dal Maso
Bull. Amer. Math. Soc. 23 (1990), 531-535.
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MathSciNet review: 1027896

Discrete analogues of singular Radon transforms

E. M. Stein; S. Wainger
Bull. Amer. Math. Soc. 23 (1990), 537-544.
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MathSciNet review: 1056560

Review: The linearization method in hydrodynamical stability theory

Reviewer(s) D. H. Sattinger
Bull. Amer. Math. Soc. 23 (1990), 545-547.
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Review: $J$ Contractive matrix functions, reproducing kernel Hilbert spaces and interpolation

Reviewer(s) Joseph A. Ball
Bull. Amer. Math. Soc. 23 (1990), 547-551.
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Review: Operators and representation theory: Canonical models for algebras of operators arising in quantum mechanics

Reviewer(s) Roe Goodman
Bull. Amer. Math. Soc. 23 (1990), 551-554.
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Review: Initial-boundary value problems and the Navier-Stokes equations

Reviewer(s) Peter Constantin
Bull. Amer. Math. Soc. 23 (1990), 555-559.
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Review: Mathematical problems from combustion theory

Reviewer(s) A. K. Kapila
Bull. Amer. Math. Soc. 23 (1990), 559-562.
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Review: The asymptotic solution of linear differential systems, applications of the Levinson theorem

Reviewer(s) Allen Devinatz
Bull. Amer. Math. Soc. 23 (1990), 563-566.
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Review: Conformal geometry

Reviewer(s) William M. Goldman
Bull. Amer. Math. Soc. 23 (1990), 566-575.
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Review: Real analysis and probability

Reviewer(s) Mark A. Pinsky
Bull. Amer. Math. Soc. 23 (1990), 575-579.
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Review: Noncommutative Noetherian rings

Reviewer(s) Edward Formanek
Bull. Amer. Math. Soc. 23 (1990), 579-582.
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Review: Foliations on Riemannian manifolds
Riemannian foliations

Reviewer(s) L. Conlon
Bull. Amer. Math. Soc. 23 (1990), 583-588.
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Review: Elementary geometry in hyperbolic space

Reviewer(s) J. B. Wilker
Bull. Amer. Math. Soc. 23 (1990), 589-594.
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Review: The classical groups and $K$-theory

Reviewer(s) Robert Steinberg
Bull. Amer. Math. Soc. 23 (1990), 594-598.
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Review: Harmonic analysis of spherical functions on real reductive groups

Reviewer(s) D. Barbasch
Bull. Amer. Math. Soc. 23 (1990), 598-604.
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Review: Binary quadratic forms, classical theory and applications

Reviewer(s) D. H. Lehmer
Bull. Amer. Math. Soc. 23 (1990), 604-605.
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Review: The emperor's new mind

Reviewer(s) John McCarthy
Bull. Amer. Math. Soc. 23 (1990), 606-616.
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Review: Cosmology in $\left( {2 + 1} \right)$-dimensions, cyclic models, and deformations of $M_{2,1}$

Reviewer(s) John K. Beem
Bull. Amer. Math. Soc. 23 (1990), 616-617.
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Review: The averaged moduli of smoothness with applications in numerical methods and approximation

Reviewer(s) R. J. Nessel
Bull. Amer. Math. Soc. 23 (1990), 618-620.
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Review: Matrix norms and their applications

Reviewer(s) Peter A. Fillmore
Bull. Amer. Math. Soc. 23 (1990), 620-623.
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Review: Vibration and coupling of continuous systems: asymptotic methods

Reviewer(s) M. Slemrod
Bull. Amer. Math. Soc. 23 (1990), 623-626.
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Review: An introduction to the numerical analysis of spectral methods

Reviewer(s) Levi Lustman
Bull. Amer. Math. Soc. 23 (1990), 626-629.
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Review: The theory of fixed point classes

Reviewer(s) D. R. Smart
Bull. Amer. Math. Soc. 23 (1990), 630-633.
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