The scope of the next two chapters is to treat Clifford algebra valued singular integral operators. Then a familiar argument based on Schur's lemma yields the result. This is worked out in detail in Chapter 3. This is done in the same spirit as before, i.e. essentially as a corollary of the existence of some suitable bases of Clifford wavelets. As for Chapter 5, we submit that the classical boundary value problems for the Laplace operator in Lipschitz domains can be very naturally treated with the aid of Clifford algebra techniques.
Several exercises outline further developments and complement the body of results in each chapter.