This book provides an introduction to the analysis and the control
mechanism of physical, chemical, biological, technological and economic
models and their nonequilibrium evolution dynamics. Strong emphasis is
placed on the foundation of variational principles, evolution and
control equations, numerical methods, statistical concepts and
techniques for solving or estimation of stochastic control problems for
systems with a high degree of complexity. In particular, the central aim
of this book is developing a synergetic connection between theoretical
concepts and real applications. This book is a modern introduction and a
helpful tool for researchers as well as for graduate students interested
in econophysics and related topics.