Cascading Failures in Interdependent Networks with Multiple Supply-Demand Links and Functionality Thresholds
- Universidad Nacional de Mar del Plata-CONICET (Argentina); DOE/OSTI
- Ciudad Universitaria (Argentina); Universidad Nacional de Córdoba (Argentina)
- Ciência e Tecnologia do Maranhão (Brazil)
- Yeshiva Univ., New York, NY (United States)
- Boston Univ., MA (United States)
- Universidad Nacional de Mar del Plata-CONICET (Argentina); Boston Univ., MA (United States)
Various social, financial, biological and technological systems can be modeled by interdependent networks. It has been assumed that in order to remain functional, nodes in one network must receive the support from nodes belonging to different networks. So far these models have been limited to the case in which the failure propagates across networks only if the nodes lose all their supply nodes. In this paper we develop a more realistic model for two interdependent networks in which each node has its own supply threshold, i.e., they need the support of a minimum number of supply nodes to remain functional. In addition, we analyze different conditions of internal node failure due to disconnection from nodes within its own network. We show that several local internal failure conditions lead to similar nontrivial results. When there are no internal failures the model is equivalent to a bipartite system, which can be useful to model a financial market. We explore the rich behaviors of these models that include discontinuous and continuous phase transitions. Using the generating functions formalism, we analytically solve all the models in the limit of infinitely large networks and find an excellent agreement with the stochastic simulations.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC07-05ID14517
- OSTI ID:
- 1624357
- Journal Information:
- Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 7; ISSN 2045-2322
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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