Debates about whether or not to engage in interventions to stabilize and rebuild states that have suffered extreme events, such as wars and large-scale natural disasters include questions about whether or not the intervening force can complete the mission. Intervening is a compl…
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This dissertation covers the two major parts of my Ph.D. research: i) developing a theoretical framework of complex networks and applying simulation and numerical methods to study the robustness of the network system, and ii) applying statistical physics concepts and methods to …
Evolution-based optimization of fuzzy logic control systems has, in recent years, received a great deal of attention due to the inherent ability of Genetic Algorithms (GA) in efficient and parallel search of complex and multimodal landscapes. This need is vividly realized as kno…
Large-scale, complex systems can be much better designed or greatly improved through re-architecture of overall system, subsystems, and components. However, the number and variety of components and their interfaces make finding optimal system designs very difficult because exist…
Spectral and wave function statistics of the quantum directed graph, QdG, are studied. The crucial feature of this model is that the direction of a bond (arc) corresponds to the direction of the waves propagating along it. We pay special attention to the full Neumann digraph, FN…
It is attempted with this dissertation to draw an explanatory interdisciplinary framework to clarify the causes of systemic corruption. Following an intense review of political sciences, economics, and sociology literatures on the issue, a complex systems theoretical model is co…
Static friction, a force fundamental to nearly every mechanical system from micro-machines to basketball shoes to tectonic plates, is in fact anything but static. In contrast to the simplified version taught in high-school, static friction is actually extremely dynamic, complex,…