## Contents of Volume 22, Number 2

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- Miscellaneous back pages, Bull. Amer. Math. Soc. (N.S.), Volume 22, Number 2 (1990)
- Bull. Amer. Math. Soc.
**22**(1990)

- Miscellaneous front pages, Bull. Amer. Math. Soc. (N.S.), Volume 22, Number 2 (1990)
- Bull. Amer. Math. Soc.
**22**(1990)

- Mapping problems in complex analysis and the $\overline \partial$-problem
- S. Bell PDF
- Bull. Amer. Math. Soc.
**22**(1990), 233-259

- An extension of Casson’s invariant to rational homology spheres
- Kevin Walker PDF
- Bull. Amer. Math. Soc.
**22**(1990), 261-267

- A symplectic geometry approach to generalized Casson’s invariants of 3-manifolds
- Sylvain E. Cappell, Ronnie Lee and Edward Y. Miller PDF
- Bull. Amer. Math. Soc.
**22**(1990), 269-275

- Recent classification and characterization results in geometric topology
- J. J. Dijkstra, T. Dobrowolski, W. Marciszewski, J. van Mill and J. Mogilski PDF
- Bull. Amer. Math. Soc.
**22**(1990), 277-283

- Differentiability of entropy for Anosov and geodesic flows
- A. Katok, G. Knieper, M. Pollicott and H. Weiss PDF
- Bull. Amer. Math. Soc.
**22**(1990), 285-293

- A sharp counterexample on the regularity of $\Phi$-minimizing hypersurfaces
- Frank Morgan PDF
- Bull. Amer. Math. Soc.
**22**(1990), 295-299

- Errata to Groups and Geometric Analysis
- Bull. Amer. Math. Soc.
**22**(1990), 348-349

##
Book Reviews

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

- Mathematical intuitionism. Introduction to proof theory, by A. G. Dragalin.
- Reviewer: Ieke Moerdijk

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 301-304

- From cardinals to chaos: Reflections on the life and legacy of Stan Ulam, by Necia G. Cooper.
- Reviewer: Peter D. Lax

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 304-310

- Kleinian groups, by Bernard Maskit.
- Reviewer: Albert Marden

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 310-315

- Lectures on the asymptotic theory of ideals, by David Rees.
- Reviewer: S. McAdam

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 315-317

- Lattices with Unique Complements, by V. N. Saliĭ.
- Reviewer: G. Grätzer

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 318-324

- Grassmannians and Gauss maps in piecewise-linear topology, by Norman Levitt.
- Reviewer: R. Lashof

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 324-326

- Predicative arithmetic, by Edward Nelson.
- Reviewer: A. J. Wilkie

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 326-331

- Commutative rings with zero divisors, by James A. Huckaba.
- Reviewer: Carl Faith

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 331-335

- Harmonic analysis in phase space, by Gerald Folland.
- Reviewer: V. Guillemin

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 335-338

- Local methods in nonlinear differential equations, by Alexander D. Bruno.
- Reviewer: Philip Holmes

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 339-343

- Algebras, Lattices, Varieties,, by Ralph N. McKenzie, George F. McNulty and Walter F. Taylor.
- Reviewer: David M. Clark

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 343-348

- Direct and inverse scattering on the line, by Richard Beals, Percy Deift and Carlos Tomei.
- Reviewer: Robert L. Sachs

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 349-353

- Controlabilité Exacte, Perturbations et Stabilisation de Systèmes Distribués, by J.-L. Lions.
- Reviewer: David L. Russell

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 353-356

- Determinantal rings, by Winfried Bruns and Udo Vetter.
- Reviewer: Jerzy Weyman

- Review information PDF
- Bull. Amer. Math. Soc.
**22**(1990), 357-361