network of friends

whether your network of friends will survive or break up?Mathematician come up with an alogorithm to explain it all, which they publish in the journal Nature.Professor Tamas Vicsek of Budapest's Eotvos Lorand University and colleagues trawled through two sets of data to explore how people link up.One was a collaborative network of more than 30,000 researchers connected to an archive at New York's Cornell University; the other was the year-long record of communications patterns of 4 million mobile phone users. Put together, these figures provided an intriguing picture of relationship dynamics.The Hungarian and US team found that small groups only last if they have an unchanged core of members, in other words, a clique.