books.google.com - A classical problem in analysis is to find conditions under which a given complex-valued function on a topological space can be uniformly approximated by elements of a prescribed algebra of functions on this set. It turns out that an important role in solving this problem is played by uniform algebras,...http://books.google.com/books/about/Uniform_Algebras.html?id=2-K2A7cdORoC&q=norm&utm_source=gb-gplus-shareUniform Algebras