Browsing by Author "Wanner, Thomas"
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Item Dissipative quasigeostrophic dynamics under random forcing(1998-06) Brannan, James R.; Duan, Jinqiao; Wanner, ThomasItem Enstrophy dynamics of stochastically forced large-scale geophysical flows(2001-07) Blomker, Dirk; Duan, Jinqiao; Wanner, ThomasEnstrophy is an averaged measure of fluid vorticity. This quantity is particularly important in {\em rotating} geophysical flows. We investigate the dynamical evolution of enstrophy for large-scale quasi-geostrophic flows under random wind forcing. We obtain upper bounds on the enstrophy, as well as results establishing its Hölder continuity and describing the small-time asymptotics.Item A randomized subdivision algorithm for determining the topology of nodal sets(University of Minnesota. Institute for Mathematics and Its Applications, 2012-12) Cochran, Gregory S.; Wanner, Thomas; Dlotko, PawelItem Rigorous validation of isolating blocks for flows and their Conley indices(University of Minnesota. Institute for Mathematics and Its Applications, 2014-05) Stephens, Thomas; Wanner, ThomasItem Towards a formal tie between combinatorial and classical vector field dynamics(University of Minnesota. Institute for Mathematics and Its Applications, 2014-11) Kaczynski, Tomasz; Mrozek, Marian; Wanner, Thomas