Inverse Problems in Scattering exposes some of the mathematics which
has been developed in attempts to solve the one-dimensional inverse
scattering problem. Layered media are treated in Chapters 1--6 and
quantum mechanical models in Chapters 7--10. Thus, Chapters 2 and 6 show
the connections between matrix theory, Schur's lemma in complex
analysis, the Levinson--Durbin algorithm, filter theory, moment problems
and orthogonal polynomials. The chapters devoted to the simplest inverse
scattering problems in quantum mechanics show how the Gel'fand--Levitan
and Marchenko equations arose. The introduction to this problem is an
excursion through the inverse problem related to a finite difference
version of Schrödinger's equation. One of the basic problems in inverse
quantum scattering is to determine what conditions must be imposed on
the scattering data to ensure that they correspond to a regular
potential, which involves Lebesque integrable functions, which are
introduced in Chapter 9.