On a spectral problem in magnetohydrodynamics and its relevance for the geodynamo

2018/05/01 by Stefani, Frank, Tretter, Christiane
#35Q86 #47A10 #47N50 #76W05 #86A25 #FOS: Physical sciences #Geophysics (physics.geo-ph) #Mathematical Physics (math-ph)

paper · doi:10.48550/arxiv.1805.00238

Abstract

One of the most remarkable features of the geodynamo is the irregular occurrence of magnetic field reversals. Starting with the operator theoretical treatment of a non-selfadjoint dynamo operator, we elaborate a dynamical picture of those reversals that rely on the existence of exceptional spectral points.

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