CollatzIntro  Introduction 
Workshop 

With this short series of articles I'm building a compilation of my attempts to deal with or solve ;) the Collatzproblem. It was  in all successlessnes  a wide spectrum of subjects, that I came across and that I learned as new stuff. So the following might give insight in some numbertheoretic threads, partly more than I found in various equallyamateurish collatzpages around so I decided finally to put up this site to share my thoughts and results. Since the dealing with mathematical puzzles of such a dimension (which I didn't expect, when I entered this problem first time back in the seventies) one has to know his limitations in abilities to prove this and that. The collatzproblem can be attacked from the pure numbertheoretic approach, from set theory, from graphtheory and in all these fields one comes very quickly to simple stated, but deep and difficult and still unsolved problems. 
