This book is devoted to the analysis of approximate solution techniques for differential equations, based on classical orthogonal polynomials. These techniques

Everything is more simple than one thinks but at the same time more complex than one can understand Johann Wolfgang von Goethe To reach the point that is unknow

"This is a book about polynomial approximation in high dimensions"--

This self-contained book brings together the important results of a rapidly growing area.As a starting point it presents the classic results of the theory. The