The NATO Advanced Research Workshop "Painleve Transcendents, their
Asymp- totics and Physical Applications", held at the Alpine Inn in
Sainte-Adele, near Montreal, September 2 -7, 1990, brought together a
group of experts to discuss the topic and produce this volume. There
were 41 participants from 14 countries and 27 lectures were presented,
all included in this volume. The speakers presented reviews of topics to
which they themselves have made important contributions and also re-
sults of new original research. The result is a volume which, though
multiauthored, has the character of a monograph on a single topic. This
is the theory of nonlinear ordinary differential equations, the
solutions of which have no movable singularities, other than poles, and
the extension of this theory to partial differential equations. For
short we shall call such systems "equations with the Painleve property".
The search for such equations was a very topical mathematical problem in
the 19th century. Early work concentrated on first order differential
equations. One of Painleve's important contributions in this field was
to develop simple methods applicable to higher order equations. In
particular these methods made possible a complete analysis of the
equation;; = f(y', y, x), where f is a rational function of y' and y,
with coefficients that are analytic in x. The fundamental result due to
Painleve (Acta Math.