Contributions to Algebra. A Collection of Papers Dedicated to Ellis Kolchin

Content: 
Inside Front Cover, Page ii
Front Matter, Page iii
Copyright, Page iv
Inside Front Cover, Page v
List of contributors, Pages xv-xvi
Preface, Pages xvii-xxii
Quadratic modules over polynomial rings, Pages 1-23, Hyman Bass
The action of the universal modular group on certain boundary points, Pages 25-36, Lipman Bers
Differentially closed fields: a model-theoretic tour, Pages 37-61, Lenore Blum
On finite projective groups, Pages 63-82, Richard Brauer
Unipotent differential algebraic groups, Pages 83-115, Phyllis J. Cassidy
Solutions in the general solution, Pages 117-128, Richard M. Cohn
Folk theorems on elliptic equations, Pages 129-134, Jean Dieudonné
Limit properties of stochastic matrices, Pages 135-149, Samuel Eilenberg, Alex Heller
A fixed-point characterization of linearly reductive groups, Pages 151-155, J. Fogarty, P. Norman
Orthogonal and unitary invariants of families of subspaces, Pages 157-164, P.X. Gallagher, R.J. Proulx
The Macdonald-Kac formulas as a consequence of the Euler-Poincaré principle, Pages 165-173, Howard Garland, James Lepowsky
The characters of reductive p-adic groups, Pages 175-182, Harish-Chandra
Basic constructions in group extension theory, Pages 183-201, G. Hochschild
On the hyperalgebra of a semisimple algebraic group, Pages 203-210, J.E. Humphreys
A notion of regularity for differential local algebras, Pages 211-232, Joseph Johnson
The Engel–Kolchin theorem revisited, Pages 233-237, Irving Kaplansky
Prime differential ideals in differential rings, Pages 239-249, William F. Keigher
Constrained cohomology, Pages 251-266, J. Kovacic
The integrability condition of deformations of CR structures, Pages 267-278, Masatake Kuranishi
Noetherian rings with many derivations, Pages 279-294, Hideyuki Matsumura
Hopf maps and quadratic forms over ℤ, Pages 295-304, Takashi Ono
Families of subgroup schemes of formal groups, Pages 305-319, Frans Oort
An effective lower bound on the “diophantine” approximation of algebraic functions by rational functions (II), Pages 321-327, Charles F. Osgood
On elementary, generalized elementary, and liouvillian extension fields, Pages 329-342, Maxwell Rosenlicht, Michael Singer
Derivations and valuation rings, Pages 343-347, A. Seidenberg
On theorems of Lie-Kolchin, Borel, and Lang, Pages 349-354, Robert Steinberg
A differential-algebraic study of the intrusion of logarithms into asymptotic expansions, Pages 355-375, Walter Strodt
A “theorem of Lie-Kolchin” for trees, Pages 377-388, J. Tits
Regular elements in anisotropic tori, Pages 389-424, F.D. Veldkamp