Minimal dynamical systems model of the Northern Hemisphere jet stream via embedding of climate data

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Jet streams are narrow, fast-flowing westerly air currents located near the tropopause, the tropospheric boundary with the higher stratosphere. These jets play a major role in driving the large-scale atmospheric circulation and modulate the frequency, severity and persistence of weather events at middle latitudes. Read more →

Spectral theory for the stability of dynamical systems on large oriented locally tree-like graphs

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The linear stability of large complex systems around their stationary points can be studied with random matrix theory. In one common model, the i.i.d. random matrix model, one assumes a simple statistical form for the interactions between distinct elements of a network. Read more →