The central subject of this book - the theory of shift-invariant
algebras - is an outgrowth of the established theory of generalized
analytic functions. This general framework carries along associated
subalgebras of almost periodic functions of real variables and of
bounded analytic functions on the unit disc. The text describes Bourgain
algebras, orthogonal measures, and primary ideals of big disc algebras.
The notion of a harmonic function is extended on compact abelian groups,
and corresponding Fatou-type theorems are proven. Finally, the book
introduces and studies classes of inductive limits of standard uniform
algebras, including Blasche algebras. This is the first monograph
devoted entirely to the topic.