*Caveat*: These lectures and the special choice of the subjects covered here as the syllabus should in no ways be considered as a substitute for a good textbook or the standard syllabus of your school. It is strongly advised that you consult standard textbooks closely, and do not rely on these lectures alone. These lectures have not yet been double-checked by the lecturer, thus they may still contain scientific errors. If, anyhow,you would like to use these lectures, beware of this point and use them at your own risk.Hopefully, annotated versions of the lecture files with corrections and explanatory comments will be available in near future.