(a) Consider a problem of analysing publications in particular scientific area and you are given list of authors and a graph representing author's network is built. The network growth is modelled by Barabasi-Albert model and has degree distribution p(k) 2m/8k-", with B = 0.5, y = 1 + 1 = 3. What kind of network is described by the above parameters: random, scale-free network, etc and explain why? [5 marks]