## Contents of Volume 78, Number 1

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- Miscellaneous front pages, Bull. Amer. Math. Soc., Volume 78, Number 1 (1972)
- Bull. Amer. Math. Soc.
**78**(1972)

- Integration of complex vector fields
- J. J. Kohn PDF
- Bull. Amer. Math. Soc.
**78**(1972), 1-11

- Miscellaneous back pages, Bull. Amer. Math. Soc., Volume 78, Number 1 (1972)
- Bull. Amer. Math. Soc.
**78**(1972)

- The summer meeting in University Park
- Everett Pitcher and Walter Gottschalk PDF
- Bull. Amer. Math. Soc.
**78**(1972), 21-34

- On the type of associative $H$-spaces
- John Ewing PDF
- Bull. Amer. Math. Soc.
**78**(1972), 35-37

- Functional composition on Sobolev spaces
- Moshe Marcus and Victor J. Mizel PDF
- Bull. Amer. Math. Soc.
**78**(1972), 38-42

- On a class of best nonlinear approximation problems
- Samuel Karlin PDF
- Bull. Amer. Math. Soc.
**78**(1972), 43-49

- Incomplete normed algebras
- Bertram Yood PDF
- Bull. Amer. Math. Soc.
**78**(1972), 50-52

- Mapping onto 2-dimensional spaces
- Dix H. Pettey PDF
- Bull. Amer. Math. Soc.
**78**(1972), 53-54

- Three new examples of compact manifolds admitting Riemannian structures of positive curvature
- Nolan R. Wallach PDF
- Bull. Amer. Math. Soc.
**78**(1972), 55-56

- Jordan operators in infinite dimensions and Sturm Liouville conjugate point theory
- J. William Helton PDF
- Bull. Amer. Math. Soc.
**78**(1972), 57-61

- Signatures on semilocal rings
- Manfred Knebusch, Alex Rosenberg and Roger Ware PDF
- Bull. Amer. Math. Soc.
**78**(1972), 62-64

- Extending Fourier transforms into Sz.-Nagy-Foiaş spaces
- Douglas N. Clark PDF
- Bull. Amer. Math. Soc.
**78**(1972), 65-67

- Schur multipliers of the known finite simple groups
- Robert L. Griess Jr. PDF
- Bull. Amer. Math. Soc.
**78**(1972), 68-71

- Rigidity theorems for surfaces in euclidean space
- Bang-Yen Chen and Gerald D. Ludden PDF
- Bull. Amer. Math. Soc.
**78**(1972), 72-73

- On the class numbers of totally imaginary quadratic extensions of totally real fields
- Judith E. Sunley PDF
- Bull. Amer. Math. Soc.
**78**(1972), 74-76

- Taming irregular sets of homeomorphisms
- P. F. Duvall Jr. and L. S. Husch PDF
- Bull. Amer. Math. Soc.
**78**(1972), 77-79

- Relative imaginary quadratic fields of low class number
- Larry Joel Goldstein PDF
- Bull. Amer. Math. Soc.
**78**(1972), 80-81

- A topological Reeb-Milnor-Rosen theorem and characterizations of manifolds
- Louis F. McAuley PDF
- Bull. Amer. Math. Soc.
**78**(1972), 82-84

- Quasi-analyticity and semigroups of bounded linear transformations
- J. W. Neuberger PDF
- Bull. Amer. Math. Soc.
**78**(1972), 85-87

- Classification theorems for $p$-groups and modules over a discrete valuation ring
- R. B. Warfield Jr. PDF
- Bull. Amer. Math. Soc.
**78**(1972), 88-92

- Generalizations of accretivity for nonlinear mappings of Banach spaces
- Felix E. Browder PDF
- Bull. Amer. Math. Soc.
**78**(1972), 93-98

- Surgically transforming links into noninvertible knots
- Wilbur Whitten PDF
- Bull. Amer. Math. Soc.
**78**(1972), 99-103

- Council and board of trustees—1971
- Bull. Amer. Math. Soc.
**78**(1972), 104

##
Book Reviews

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

- Perceptrons, An Introduction to Computational Geometry, by Marvin Minsky and Seymour Papert.
- Reviewer: Jan Mycielski

- Review information PDF
- Bull. Amer. Math. Soc.
**78**(1972), 12-15

- Methods of Hilbert Spaces, by Krzysztof Maurin.
- General Eigenfunction Expansions and Unitary Representations of Topological Groups, by Krzysztof Maurin.
- Reviewer: David L. Ragozin

- Review information PDF
- Bull. Amer. Math. Soc.
**78**(1972), 15-20