Banavar J R, Colaiori F, Flammini A, Maritan A, Rinaldo A
Department of Physics and Center for Materials Physics, 104 Davey Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Phys Rev Lett. 2000 May 15;84(20):4745-8. doi: 10.1103/PhysRevLett.84.4745.
The presence or absence of loops in the emergent transportation networks, that are characterized by a minimum overall cost, is shown to depend on the convexity of the cost function for the local transportation of material. Our results are directly applicable to a variety of situations across disciplines.
以最低总成本为特征的新兴运输网络中回路的存在与否，取决于物质局部运输成本函数的凸性。我们的结果可直接应用于跨学科的各种情况。
