## Contents of Volume 278, Number 2

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- Equivariant vector fields on spheres
- Unni Namboodiri PDF
- Trans. Amer. Math. Soc.
**278**(1983), 431-460

- $F$-purity and rational singularity
- Richard Fedder PDF
- Trans. Amer. Math. Soc.
**278**(1983), 461-480

- Poles of a two-variable $P$-adic complex power
- Leon Strauss PDF
- Trans. Amer. Math. Soc.
**278**(1983), 481-493

- Measure and category approximations for $C$-sets
- V. V. Srivatsa PDF
- Trans. Amer. Math. Soc.
**278**(1983), 495-505

- The coordinatization of Arguesian lattices
- Alan Day and Douglas Pickering PDF
- Trans. Amer. Math. Soc.
**278**(1983), 507-522

- Support points of families of analytic functions described by subordination
- D. J. Hallenbeck and T. H. MacGregor PDF
- Trans. Amer. Math. Soc.
**278**(1983), 523-546

- $I^{X}$, the hyperspace of fuzzy sets, a natural nontopological fuzzy topological space
- R. Lowen PDF
- Trans. Amer. Math. Soc.
**278**(1983), 547-564

- Cocycles and local product decomposition
- Jun-ichi Tanaka PDF
- Trans. Amer. Math. Soc.
**278**(1983), 565-572

- Conformally flat manifolds with nilpotent holonomy and the uniformization problem for $3$-manifolds
- William M. Goldman PDF
- Trans. Amer. Math. Soc.
**278**(1983), 573-583

- Separatrix and limit cycles of quadratic systems and Dulac’s theorem
- Carmen Chicone and Douglas S. Shafer PDF
- Trans. Amer. Math. Soc.
**278**(1983), 585-612

- The divisor classes of the hypersurface $z^{p^{m}}=G(x_{1},\cdots ,x_{n})$ in characteristic $p>0$
- Jeffrey Lang PDF
- Trans. Amer. Math. Soc.
**278**(1983), 613-634

- Diophantine approximation properties of certain infinite sets
- Wolfgang M. Schmidt PDF
- Trans. Amer. Math. Soc.
**278**(1983), 635-645

- The sufficiency of the Matkowsky condition in the problem of resonance
- Ching Her Lin PDF
- Trans. Amer. Math. Soc.
**278**(1983), 647-670

- Stable complete constant mean curvature surfaces in $\textbf {R}^{3}$ and $H^{3}$
- Hiroshi Mori PDF
- Trans. Amer. Math. Soc.
**278**(1983), 671-687

- Embedding $L^{1}$ in $L^{1}/H^{1}$
- J. Bourgain PDF
- Trans. Amer. Math. Soc.
**278**(1983), 689-702

- Almost everywhere summability on nilmanifolds
- Andrzej Hulanicki and Joe W. Jenkins PDF
- Trans. Amer. Math. Soc.
**278**(1983), 703-715

- Subcontinua with degenerate tranches in hereditarily decomposable continua
- Lex G. Oversteegen and E. D. Tymchatyn PDF
- Trans. Amer. Math. Soc.
**278**(1983), 717-724

- Hereditarily additive families in descriptive set theory and Borel measurable multimaps
- Roger W. Hansell PDF
- Trans. Amer. Math. Soc.
**278**(1983), 725-749

- Fully nonlinear, uniformly elliptic equations under natural structure conditions
- Neil S. Trudinger PDF
- Trans. Amer. Math. Soc.
**278**(1983), 751-769

- On some cheap control problems for diffusion processes
- José-Luis Menaldi and Maurice Robin PDF
- Trans. Amer. Math. Soc.
**278**(1983), 771-802

- Uniformly exhaustive submeasures and nearly additive set functions
- N. J. Kalton and James W. Roberts PDF
- Trans. Amer. Math. Soc.
**278**(1983), 803-816

- An application of asymptotic techniques to certain problems of spectral and scattering theory of Stark-like Hamiltonians
- Matania Ben-Artzi PDF
- Trans. Amer. Math. Soc.
**278**(1983), 817-839

- Group actions on aspherical $A_{k}(N)$-manifolds
- Hsü Tung Ku and Mei Chin Ku PDF
- Trans. Amer. Math. Soc.
**278**(1983), 841-859