## Contents of Volume 137

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- On the theory of linear partial differential operators with analytic coefficients
- François Trèves PDF
- Trans. Amer. Math. Soc.
**137**(1969), 1-20

- On handle decompositions and diffeomorphisms
- Max K. Agoston PDF
- Trans. Amer. Math. Soc.
**137**(1969), 21-26

- Relative knots and tangential equivalences
- Max K. Agoston PDF
- Trans. Amer. Math. Soc.
**137**(1969), 27-52

- Functional analytic properties of extremely amenable semigroups
- Edmond E. Granirer PDF
- Trans. Amer. Math. Soc.
**137**(1969), 53-75

- Commuting functions with no common fixed point
- William M. Boyce PDF
- Trans. Amer. Math. Soc.
**137**(1969), 77-92

- Transitivity of the automorphisms of certain geometric structures
- William M. Boothby PDF
- Trans. Amer. Math. Soc.
**137**(1969), 93-100

- On algebraic extensions and order-preserving isomorphisms of certain partially ordered fields
- Robert K. Wright PDF
- Trans. Amer. Math. Soc.
**137**(1969), 101-114

- Some applications of an inequality in locally convex spaces
- C. W. McArthur and J. R. Retherford PDF
- Trans. Amer. Math. Soc.
**137**(1969), 115-123

- $A$-transforms and Hilbert functions in local lattices
- E. W. Johnson PDF
- Trans. Amer. Math. Soc.
**137**(1969), 125-139

- Necessary conditions for embedding rings into fields
- Abraham A. Klein PDF
- Trans. Amer. Math. Soc.
**137**(1969), 141-151

- Haar series
- James R. McLaughlin PDF
- Trans. Amer. Math. Soc.
**137**(1969), 153-176

- Systems of difference equations with general homogeneous boundary conditions
- Stanley Osher PDF
- Trans. Amer. Math. Soc.
**137**(1969), 177-201

- Boundary functions for bounded harmonic functions
- T. J. Kaczynski PDF
- Trans. Amer. Math. Soc.
**137**(1969), 203-209

- The $C^{\ast }$-algebra generated by an isometry. II
- L. A. Coburn PDF
- Trans. Amer. Math. Soc.
**137**(1969), 211-217

- The proof that a game may not have a solution
- William F. Lucas PDF
- Trans. Amer. Math. Soc.
**137**(1969), 219-229

- Concerning cellular decompositions of $3$-manifolds with boundary
- Steve Armentrout PDF
- Trans. Amer. Math. Soc.
**137**(1969), 231-236

- Weak wave operators for the nonlinear wave equation
- A. Robert Brodsky PDF
- Trans. Amer. Math. Soc.
**137**(1969), 237-244

- Ideals in Chevalley algebras
- James F. Hurley PDF
- Trans. Amer. Math. Soc.
**137**(1969), 245-258

- Lie algebras of characteristic three with nondegenerate Killing form.
- Gordon Brown PDF
- Trans. Amer. Math. Soc.
**137**(1969), 259-268

- The automorphism groups of almost Hermitian manifolds
- Shûkichi Tanno PDF
- Trans. Amer. Math. Soc.
**137**(1969), 269-275

- Local times and sample function properties of stationary Gaussian processes
- Simeon M. Berman PDF
- Trans. Amer. Math. Soc.
**137**(1969), 277-299

- A note on the connectivity of components of Kleinian groups
- Charles Kalme PDF
- Trans. Amer. Math. Soc.
**137**(1969), 301-307

- Complete models of differential fields
- Peter Blum PDF
- Trans. Amer. Math. Soc.
**137**(1969), 309-325

- Centralizers in free associative algebras
- George M. Bergman PDF
- Trans. Amer. Math. Soc.
**137**(1969), 327-344

- Identities involving the coefficients of a class of Dirichlet series. I
- Bruce C. Berndt PDF
- Trans. Amer. Math. Soc.
**137**(1969), 345-359

- Identities involving the coefficients of a class of Dirichlet series. II
- Bruce C. Berndt PDF
- Trans. Amer. Math. Soc.
**137**(1969), 361-374

- Extreme invariant positive operators
- George Converse, Isaac Namioka and R. R. Phelps PDF
- Trans. Amer. Math. Soc.
**137**(1969), 375-385

- Harmonic functions and their conjugates on Hilbert space
- Michael J. Fisher PDF
- Trans. Amer. Math. Soc.
**137**(1969), 387-405

- Pre-self-injective rings
- G. B. Klatt and L. S. Levy PDF
- Trans. Amer. Math. Soc.
**137**(1969), 407-419

- Continuous characters of compact semigroups
- Ronald Fulp PDF
- Trans. Amer. Math. Soc.
**137**(1969), 421-430

- On symmetric neighborhood systems in metric, strongly paracompact and some other types of spaces
- Margaret Reames Wiscamb PDF
- Trans. Amer. Math. Soc.
**137**(1969), 431-450

- Triangulations of the $3$-ball with knotted spanning $1$-simplexes and collapsible $r$th derived subdivisions
- W. B. R. Lickorish and J. M. Martin PDF
- Trans. Amer. Math. Soc.
**137**(1969), 451-458

- Complemented $B^{\ast }$-algebras
- F. E. Alexander and B. J. Tomiuk PDF
- Trans. Amer. Math. Soc.
**137**(1969), 459-480

- A cohomological description of abelian Galois extensions
- Morris Orzech PDF
- Trans. Amer. Math. Soc.
**137**(1969), 481-499

- Functions of exponential type not vanishing in a half-plane and related polynomials
- N. K. Govil and Q. I. Rahman PDF
- Trans. Amer. Math. Soc.
**137**(1969), 501-517

- Othogonal representations of algebraic groups
- Frank Grosshans PDF
- Trans. Amer. Math. Soc.
**137**(1969), 519-531

- Characteristic classes for modules over groups. I
- L. S. Charlap and A. T. Vasquez PDF
- Trans. Amer. Math. Soc.
**137**(1969), 533-549

- On topological equivalence of $\aleph _{0}$-dimensional linear spaces
- Raymond Y. T. Wong PDF
- Trans. Amer. Math. Soc.
**137**(1969), 551-560