This paper deals with the 2-Peripatetic Salesman Problem for the case where costs respect the triangle inequality. The aim is to determine 2 edge disjoint Hamiltonian cycles of minimum total cost on a graph. We first present a straightforward 9/4 approximation algorithm based on the well known Christofides algorithm for the travelling salesman problem. Then we propose a 2(n−1)/n-approximation p...

Fritz Heider was a wanderer, someone who liked to survey and take the measure of whatever he encountered. In his formative years, he was a wanderer in the geographical sense — hiking in his beloved Austrian mountains and traveling throughout much of Europe. In his professional years, he was a wanderer in the intellectual sense — taking daily walks for the purpose of analyzing a difficult concep...

this investigation, is consideration in relation between faith and moral in soren kierkegaard`s point of view, as two undeniable fact of mankind living reality that wich kierkegaard, christian fideist philosopher, describe from christian faith; she scrutinize`s this relation with study bible and some of chiristianity teachings as incarnation and expiate and the three persons. on the other hand,...

The article proposes an examination and academic translation into Ukrainian of a series works by ancient Greek thinkers-peripatetics, which reveal the problems education upbringing. In center attention, in particular, there are fragments such philosophers as Clearchus Soli, Hieronymus Rhodes Aristo Keos.
 It is revealed that on basis surviving work “On Education”, Sol focuses attention his...