TY - BOOK AU - Wirsching,Günther J. ED - SpringerLink (Online service) TI - The Dynamical System Generated by the 3n+1 Function T2 - Lecture Notes in Mathematics, SN - 9783540696773 AV - QA241-247.5 U1 - 512.7 23 PY - 1998/// CY - Berlin, Heidelberg PB - Springer Berlin Heidelberg KW - Mathematics KW - Information theory KW - Number theory KW - Number Theory KW - Theory of Computation N1 - Some ideas around 3n+1 iterations -- Analysis of the Collatz graph -- 3-adic averages of counting functions -- An asymptotically homogeneous Markov chain -- Mixing and predecessor density N2 - The 3n+1 function T is defined by T(n)=n/2 for n even, and T(n)=(3n+1)/2 for n odd. The famous 3n+1 conjecture, which remains open, states that, for any starting number n>0, iterated application of T to n eventually produces 1. After a survey of theorems concerning the 3n+1 problem, the main focus of the book are 3n+1 predecessor sets. These are analyzed using, e.g., elementary number theory, combinatorics, asymptotic analysis, and abstract measure theory. The book is written for any mathematician interested in the 3n+1 problem, and in the wealth of mathematical ideas employed to attack it UR - http://dx.doi.org/10.1007/BFb0095985 ER -