## Contents of Volume 9, Number 2

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- Miscellaneous front pages, Bull. Amer. Math. Soc. (N.S.), Volume 9, Number 2 (1983)
- Bull. Amer. Math. Soc.
**9**(1983)

- Miscellaneous back pages, Bull. Amer. Math. Soc. (N.S.), Volume 9, Number 2 (1983)
- Bull. Amer. Math. Soc.
**9**(1983)

- The uncertainty principle
- Charles L. Fefferman PDF
- Bull. Amer. Math. Soc.
**9**(1983), 129-206

- Steenrod-Sitnikov homology for arbitrary spaces
- Ju. T. Lisica and S. Mardešić PDF
- Bull. Amer. Math. Soc.
**9**(1983), 207-210

- Explicit relaxation of a variational problem in optimal design
- Robert V. Kohn and Gilbert Strang PDF
- Bull. Amer. Math. Soc.
**9**(1983), 211-214

- A generalization of two classical convergence tests for Fourier series, and some new Banach spaces of functions
- B. Korenblum PDF
- Bull. Amer. Math. Soc.
**9**(1983), 215-218

- Entropies and factorizations of topological Markov shifts
- D. A. Lind PDF
- Bull. Amer. Math. Soc.
**9**(1983), 219-222

- Surgery and bordism invariants
- Michael Weiss PDF
- Bull. Amer. Math. Soc.
**9**(1983), 223-226

- $FP_\infty$ groups and HNN extensions
- Kenneth S. Brown and Ross Geoghegan PDF
- Bull. Amer. Math. Soc.
**9**(1983), 227-229

- Characterization of strictly convex domains biholomorphic to a circular domain
- Giorgio Patrizio PDF
- Bull. Amer. Math. Soc.
**9**(1983), 231-233

- Milnor algebras and equivalence relations among holomorphic functions
- Stephen S.-T. Yau PDF
- Bull. Amer. Math. Soc.
**9**(1983), 235-239

##
Book Reviews

Book reviews do not contain an abstract. You may
download each review in this issue using the links
below.

- Applications of centre manifold theory, by J. Carr.
- Theory and applications of Hopf bifurcation, by B. D. Hassard, N. D. Kazarinoff and Y.-H. Wan.
- Elementary stability and bifurcation theory, by Gerard Iooss and Daniel D. Joseph.
- Reviewer: Stuart S. Antman

- Review information PDF
- Bull. Amer. Math. Soc.
**9**(1983), 241-248

- Interpolation of linear operators, by S. G. Kreĭn, Ju. I. Petunin and E. M. Semenov.
- Reviewer: Colin Bennett

- Review information PDF
- Bull. Amer. Math. Soc.
**9**(1983), 248-252

- Generalized solutions of Hamilton-Jacobi equations, by P. L. Lions.
- Reviewer: Stanley H. Benton

- Review information PDF
- Bull. Amer. Math. Soc.
**9**(1983), 252-256

- Surfaces and planar discontinuous groups, by Heiner Zieschang, Elmar Vogt and Hans-Dieter Coldewey.
- Reviewer: Jane Gilman

- Review information PDF
- Bull. Amer. Math. Soc.
**9**(1983), 256-259

- Mathematical theory of entropy, by Nathaniel F. G. Martin and James W. England.
- Topics in ergodic theory, by William Parry.
- An introduction to ergodic theory, by Peter Walters.
- Reviewer: Paul Shields

- Review information PDF
- Bull. Amer. Math. Soc.
**9**(1983), 259-265