Dynamics of Opinion Forming in Structurally Balanced Social Networks
Figure 5
A fraction of one of the two parties (individuals in red) joints the other faction at . In our model this corresponds to applying a gauge transformation to the individuals in question: in the sociomatrix friends become adversaries and viceversa. This results in a change of sign of the corresponding rows/columns of the Jacobian and induces a rapid realignment of the individuals to opposite opinions. The network rapidly reaches a new steady state, differing for the old one only for the sign of the opinions of the red individuals.