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physics.plasm-ph2023
Relative magnetic helicity in multiply connected domains
David MacTaggart, Alberto Valli
Magnetic helicity is a conserved quantity of ideal magnetohydrodynamics (MHD) that is related to the topology of the magnetic field, and is widely studied in both laboratory and as…
math.AP2023
A well-posed variational formulation of the Neumann boundary value problem for the biharmonic operator
Alberto Valli
In this note we devise and analyze a well-posed variational formulation of the Neumann boundary value problem associated to the biharmonic operator . An alternative formulatio…