Showing 1 - 10 of 21
We use an information-theoretic approach to describe changes in lending relationships between financial institutions around the time of the Lehman Brothers failure. Unlike previous work that conducts maximum likelihood estimation on undirected networks our analysis distinguishes between...
Persistent link: https://www.econbiz.de/10011194002
power supply requires, together with careful operation, a robust design of the electrical power grid topology. Currently …, the impact of the topology on grid robustness is mainly assessed by purely topological approaches, that fail to capture … the essence of electric power flow. This paper proposes a metric, the effective graph resistance, to relate the topology …
Persistent link: https://www.econbiz.de/10010873707
Polymer gel serves as a model system which represents many aspects of static and dynamic processes in solids in an amplified manner both spatially and temporaly. We will give a brief overview of those aspects and refer to the recent topics on the subjects.
Persistent link: https://www.econbiz.de/10010874099
the underlying topology. We also investigate the influence of the ratio between the number of red and blue particles has …
Persistent link: https://www.econbiz.de/10011057596
The topological interaction method proposed by Suzuki is applied to the transverse Ising chain and XY chain in order to study the behaviour of the boundary–boundary correlations. The correlation function 〈σ1xσNx〉 for the thermodynamic limit is derived by this method as a function of the...
Persistent link: https://www.econbiz.de/10011059079
objects. The approach is based on recently elaborated computational topology methods and it proves to be very useful for …
Persistent link: https://www.econbiz.de/10011060037
A compressed representation is described of the state space of discrete systems with some kind of symmetry of its states. An initial state space is represented as a network of states. Two states are linked if some single process leads from one state to another. The network can be compressed by a...
Persistent link: https://www.econbiz.de/10011060502
class of short-range, confining potentials, a topology change in some family of configuration space submanifolds is the only … possible such mechanism. Two examples of systems in which the phase transition is not accompanied by a such topology change are …
Persistent link: https://www.econbiz.de/10011061743
arrival process, a scale-free topology of payments between banks, a fixed total liquidity which limits banks’ capacity to …
Persistent link: https://www.econbiz.de/10011061770
Geometric realization of an opinion is considered as a simplex and the opinion space of a group of individuals is a simplicial complex whose topological features are monitored in the process of opinion formation. The agents are physically located at the nodes of a scale-free and a random...
Persistent link: https://www.econbiz.de/10011062649