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Rigorous results in space-periodic two-dimensional turbulence
We survey the recent advance in the rigorous qualitative theory of the 2d
stochastic Navier-Stokes system that are relevant to the description of
turbulence in two-dimensional fluids. After discussing briefly the
initial-boundary value problem and the associated Markov process, we formulate
results on the existence, uniqueness and mixing of a stationary measure. We
next turn to various consequences of these properties: strong law of large
numbers, central limit theorem, and random attractors related to a unique
stationary measure. We also discuss the Donsker-Varadhan and Freidlin-Wentzell
type large deviations, as well as the inviscid limit and asymptotic results in
3d thin domains. We conclude with some open problems
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Optimal Control of Coupled Systems of PDE
The Workshop Optimal Control of Coupled Systems of PDE was held from April 17th – April 23rd, 2005 in the Mathematisches Forschungsinstitut Oberwolfach. The scientific program covered various topics such as controllability, feedback control, optimality conditions,analysis and control of Navier-Stokes equations, model reduction of large systems, optimal shape design, and applications in crystal growth, chemical reactions and aviation
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