2 papers
math.AP2019
Axisymmetric solutions in the geomagnetic direction problem
Ralf Kaiser, Tobias Ramming
The magnetic field outside the earth is in good approximation a harmonic vector field determined by its values at the earth's surface. The direction problem seeks to determine harm…
astro-ph.SR2012
Well-posedness of some initial-boundary-value problems for dynamo-generated poloidal magnetic fields
Ralf Kaiser, Hannes Uecker
Given a bounded domain , , we study smooth solutions of a linear parabolic equation with non-constant coefficients in , which at the boundary have to $C…