Keinert F. Wavelets and multiwavelets 2004

Textbook in PDF format

Many of the existing wavelet books have a short section discussing multiwavelets, but there has never
been a full exposition of multiwavelet theory in book form.
This book is divided into two main parts. The first part deals with scalar wavelet theory, and can be read
by itself. The second part deals with multiwavelet theory and can also be read by itself, assuming the reader
is already familiar with scalar wavelets. Most sections of the two parts run in parallel, so it is easy to refer
back and forth between the two and check how a scalar result generalizes to the multiwavelet case. In some
cases, the generalization is straightforward. In other cases, the multiwavelet results are more complex, in
unexpected ways