Phase 2: vanishing-diffusivity limits are transport weak solutions #
Source line 10132 (asserted without proof there): a sequence of weak solutions with
diffusivities κ_j → 0, uniformly Cauchy in L²(cell) over t ∈ [0,1], converges uniformly in
L² to a weak solution of the transport equation ∂ₜθ + b·∇θ = 0 with the same initial datum.
Uniform-L² limits of weak solutions with vanishing diffusivity are transport weak
solutions.
Equations
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