Contents of Volume 131, Number 2

All articles in this issue are freely accessible.

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The word problem and consequences for the braid groups and mapping class groups of the $2$-sphere

Richard Gillette and James Van Buskirk.
Trans. Amer. Math. Soc. 131 (1968), 277-296
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MathSciNet review: 0231894

Harmonic differential with prescribed singularities

Mitsuru Nakai.
Trans. Amer. Math. Soc. 131 (1968), 297-302
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MathSciNet review: 0222286

The minimal boundary of $C(X)$

S. L. Gulick.
Trans. Amer. Math. Soc. 131 (1968), 303-314
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MathSciNet review: 0221289

Injective hulls of $C^*$ algebras

Harry Gonshor.
Trans. Amer. Math. Soc. 131 (1968), 315-322
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MathSciNet review: 0229053

The $K$-theory of a class of homogeneous spaces

Bruno Harris.
Trans. Amer. Math. Soc. 131 (1968), 323-332
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MathSciNet review: 0220312

Secondary characteristic classes for $k$-special bundles

Robert E. Mosher.
Trans. Amer. Math. Soc. 131 (1968), 333-344
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MathSciNet review: 0224108

The monotone union property of manifolds

Lawrence S. Husch.
Trans. Amer. Math. Soc. 131 (1968), 345-355
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MathSciNet review: 0221484

Changes of variables near a periodic surface or invariant manifold

Al Kelley.
Trans. Amer. Math. Soc. 131 (1968), 356-364
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MathSciNet review: 0222383

Representation of bilinear forms in Hilbert space by linear operators

Alan McIntosh.
Trans. Amer. Math. Soc. 131 (1968), 365-377
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MathSciNet review: 0221299

Some new finite translation planes

F. W. Wilke and J. L. Zemmer.
Trans. Amer. Math. Soc. 131 (1968), 378-397
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MathSciNet review: 0223974

On the number of automorphisms of a closed Riemann surface

Robert D. M. Accola.
Trans. Amer. Math. Soc. 131 (1968), 398-408
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MathSciNet review: 0222281

Closure theorems for some discrete subgroups of $R^{k}$

R. P. Gosselin.
Trans. Amer. Math. Soc. 131 (1968), 409-419
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MathSciNet review: 0221219

Semirecursive sets and positive reducibility

Carl G. Jockusch.
Trans. Amer. Math. Soc. 131 (1968), 420-436
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MathSciNet review: 0220595

Singular integral operators over a Hilbert space

Michael J. Fisher.
Trans. Amer. Math. Soc. 131 (1968), 437-465
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MathSciNet review: 0223940

The Radon-Nikodym theorem for the Bochner integral

M. A. Rieffel.
Trans. Amer. Math. Soc. 131 (1968), 466-487
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MathSciNet review: 0222245

The characters of the finite symplectic group $\textrm {Sp}(4, q)$

Bhama Srinivasan.
Trans. Amer. Math. Soc. 131 (1968), 488-525
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MathSciNet review: 0220845

Recursive pseudo-well-orderings

Joseph Harrison.
Trans. Amer. Math. Soc. 131 (1968), 526-543
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MathSciNet review: 0244049

The structure and ideal theory of the predual of a Banach lattice

E. B. Davies.
Trans. Amer. Math. Soc. 131 (1968), 544-555
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MathSciNet review: 0222604

Correction to: “Higher obstructions to sectioning a special type of fibre bundle”

W.-C. Hsiang.
Trans. Amer. Math. Soc. 131 (1968), 556
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MathSciNet review: 0226659