Arbesman S, Kleinberg J M and Strogatz S H (2009) Superlinear scaling for innovation in cities. Physical Review E; 79 (1): 016115.Arbesman, S., J. Kleinberg and S. Strogatz, "Superlinear scaling for innovation i
A new method of computation of the topological degree is given by making use of the theory of cones in this paper.As applications, we study the existence of nontrivial solutions for superlinear system of integral equations and two-point boundary value problem of superlinear system of ordinary ...