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VOLUME328 NUMBER 2 EI 11999 DECEMBER1991 RANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY EDITED BY Avner D. Ash James E. Baumgartner James W. Cannon Sun-Yung A. Chang Ralph Cohen Richard Durrett David Jerison Jerry L. Kazdan Roger D. Nussbaum Carl Pomerance Judith D. Sally David J. Saltman, Managing Editor Masamichi Takesaki Audrey Terras PROVIDENCE. RHODE ISLAND USA TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY THIS JOURNAL is devoted entirely to research in pure and applied mathematics, and includes, in general, longer papers than those in the PROCEEDINGS. Papers should be at least 16 typed pages in length. PREPARATION OF THE MANUSCRIPT. All papers should be typewritten double-spaced, and two copies should be sent to the appropriate editor. The author should keep a complete copy. 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The paper used in this journal is acid-free and falls within the guidelines established to ensure permanence and durability. @ This publication was typeset using ^^S-TgX, the American Mathematical Society's Tj:X macro system. 109 8 76 5432 1 96 95 94 93 92 91 Transactions of the American Mathematical Society AUTHOR INDEX 1991, Volumes 323-328 Aarts, J. M. and Oversteegen, L. G. Flowbox manifolds, 327, 449. Adams, Colin, Hildebrand, Martin and Weeks, Jeffrey. Hyperbolic invariants of knots and links, 326, 1. Ahmad, Shair. A nonstandard resonance problem for ordinary differential equations, 323, 857. Akcoglu, M. A. and Bradley, R. E. Alternating sequences and induced operators, 325, 765. Albano, Alberto and Katz, Sheldon. Lines on the Fermât quintic threefold and the infinitesimal generalized Hodge conjecture, 324, 353. Alonso, Juan M. Quasi-projective and relative cohomological dimension of groups, 325, 715. Alspach, Dale E. A characterization of the complemented translation-invariant subspaces ofHlÇR), 323, 197. Andersen, Kenneth F. Weighted inequalities for maximal functions associated with general mea- sures, 326, 907. Anderson, J. M., Fernández, J. L. and Shields, A. L. Inner functions and cyclic vectors in the Bloch space, 323, 429. Anderson, J. M. and Hinkkanen, A. Univalence criteria and quasiconformal extensions, 324, 823. Attouch, Hedy and Wets, Roger J.-B. Quantitative stability of variational systems : I. the epigraph- ical distance, 328, 695. Ball, Keith. Shadows of convex bodies, 327, 891. Ballico, Edoardo. On vector bundles on 3-folds with sectional genus 1, 324, 135. Balogh, Zoltán. On collectionwise normality of locally compact, normal spaces, 323, 389. Bardi, Martino and Soravia, Pierpaolo. Hamilton-Jacobi equations with singular boundary condi- tions on a free boundary and applications to differential games, 325, 205. Beattie, M. See Caenepeel, S. Beer, Gerald and Lucchetti, Roberto. Convex optimization and the epi-distance topology, 327, 795. Beerends, R. J. Chebyshev polynomials in several variables and the radial part of the Laplace- Beltrami operator, 328, 779. Bendersky, Martin and Gitler, Sam. The cohomology of certain function spaces, 326, 423. Benedetto, John J. A multidimensional Wiener-Wintner theorem and spectrum estimation, 327, 833. Benzinger, Harold E. Plane autonomous systems with rational vector fields, 326, 465. Bercovici, Hari, Foias, Ciprian and Tannenbaum, Allen. A spectral commutant lifting theorem, 325,741. Berend, Daniel and Katz, Gabriel. Concentrated cyclic actions of high periodicity, 323, 665. Bergvelt, M. J. and Guest, M. A. Actions of loop groups on harmonic maps, 326, 861. Berhanu, S. Microlocal Holmgren's theorem for a class of hypo-analytic structures, 323, 51. Blasco, O. and Pelczynski, A. Theorems of Hardy and Paley for vector-valued analytic functions and related classes ofBanach spaces, 323, 335. Boggess, A., Dwilewicz, R. and Nagel, A. The hull of holomorphy of a nonisotropic ball in a real hypersurfaceof finite type, 323, 209. Bollobás, Bêla and Brightwell, Graham. Box-spaces and random partial orders, 324, 59. Borwein, J. M. and Borwein, P. B. A cubic counterpart of Jacobi's identity and the AGM, 323, 691. Borwein, J. M. and Lewis, A. S. On the convergence of moment problems, 325, 249. Borwein, P. B. See Borwein, J. M. Boyarsky, A. See Góra, P. Boyer, Charles P., Mann, Benjamin M. and Waggoner, Daniel. On the homology ofSV{n) instan- tons, 323, 529. Boyer, Charles P. and Sánchez Valenzuela, O. A. Lie supergroup actions on supermanifolds, 323, 151. INDEX TO VOLUME 323-328 Bradley, R. E. See Akcoglu, M. A. Bratteli, Ola and Robinson, Derek W. Second-order elliptic operators and heat kernels on Lie groups, 325, 683. Brightwell, Graham. See Bollobás, Bêla Bruns, Winfried, Simis, Aron and Trung, Ngô Viêt. Blow-up of straightening-closed ideals in ordinal Hodge algebras, 326, 507. Buoncristiano, Sandro and Hacon, Derek. Characteristic numbers for unoriented Z-homology man- ifolds,323, 651. Caenepeel, S. and Beattie, M. A cohomological approach to the Brauer-Long group and the groups of Galois extensions and strongly graded rings, 324, 747. Cao, Jianguo. The existence of generalized isothermal coordinates for higher dimensional Riemannian manifolds,324, 901. Carasso, Alfred S. and Kato, Tosio. On subordinated holomorphic semigroups, 327, 867. Carlson, James A. Hypersurface variations are maximal. II, 323, 177. Cauty, Robert. Structure locale de l'espace des rétractions d'une surface, 323, 315. Chen, Shaozhu. Asymptotic integrations of nonoscillatory