\chapter{Introduction}

As the title suggests, the present work constitutes an attempt to summarize mathematical models and abstractions employed in modern theoretical physics.
Focussed on solid state theory, which, however, requires a large amount of tools, the present book tries to additionally include all prerequisites in a hopefully compact way.

A final remark: This is work in progress.
In the initial form, the manuscript will hardly contain pedagogically useful explanations but pure mathematical descriptions.
Thus, it is considered my own personal leaflet rather than a general introduction to solid state theory.

