## Contents of Volume 231, Number 2

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- Nonzero-sum stochastic differential games with stopping times and free boundary problems
- Alain Bensoussan and Avner Friedman PDF
- Trans. Amer. Math. Soc.
**231**(1977), 275-327

- Uniqueness properties of CR-functions
- L. R. Hunt PDF
- Trans. Amer. Math. Soc.
**231**(1977), 329-338

- Kernel functions on domains with hyperelliptic double
- William H. Barker PDF
- Trans. Amer. Math. Soc.
**231**(1977), 339-347

- Extremal arcs and extended Hamiltonian systems
- Frank H. Clarke PDF
- Trans. Amer. Math. Soc.
**231**(1977), 349-367

- Boundary behavior of harmonic forms on a rank one symmetric space
- Aroldo Kaplan and Robert Putz PDF
- Trans. Amer. Math. Soc.
**231**(1977), 369-384

- Structurally stable Grassmann transformations
- Steve Batterson PDF
- Trans. Amer. Math. Soc.
**231**(1977), 385-404

- The decay of solutions of the two dimensional wave equation in the exterior of a straight strip
- Peter Wolfe PDF
- Trans. Amer. Math. Soc.
**231**(1977), 405-428

- Transversality in $G$-manifolds
- M. J. Field PDF
- Trans. Amer. Math. Soc.
**231**(1977), 429-450

- Singularities of spaces of flat bundles over complex manifolds
- B. Wong PDF
- Trans. Amer. Math. Soc.
**231**(1977), 451-461

- Cyclic purity versus purity in excellent Noetherian rings
- Melvin Hochster PDF
- Trans. Amer. Math. Soc.
**231**(1977), 463-488

- Modular forms for $G_{0}(N)$ and Dirichlet series
- Michael J. Razar PDF
- Trans. Amer. Math. Soc.
**231**(1977), 489-495

- Efficient generation of maximal ideals in polynomial rings
- E. D. Davis and A. V. Geramita PDF
- Trans. Amer. Math. Soc.
**231**(1977), 497-505

- On the dimension of left invariant means and left thick subsets
- Maria Klawe PDF
- Trans. Amer. Math. Soc.
**231**(1977), 507-518

- Spectra and measure inequalities
- C. R. Putnam PDF
- Trans. Amer. Math. Soc.
**231**(1977), 519-529

- On one-dimensional coupled Dirac equations
- R. T. Glassey PDF
- Trans. Amer. Math. Soc.
**231**(1977), 531-539

- Torsion in the bordism of oriented involutions
- Russell J. Rowlett PDF
- Trans. Amer. Math. Soc.
**231**(1977), 541-548