In this book invariant probabilities for a large class of discrete-time
homogeneous Markov processes known as Feller processes are discussed.
These Feller processes appear in the study of iterated function systems
with probabilities, convolution operators, certain time series, etc.
Rather than dealing with the processes, the transition probabilities and
the operators associated with these processes are studied. Special
efforts are made to attract newcomers to the theory of Markov processes
in general, and to the topics covered, in particular. Most of the
results are new and deal with topics of intense research interest.