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DefinitionDefinition: Literature-sourcedProof: Not applicablejudge pass (gpt-6-luna)
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The skew convective form for incompressible flow

Definition

Let D⊂Rd be a bounded connected Lipschitz domain with d∈{2,3}, and let V=H01(D;Rd) as in Stokes velocity and pressure spaces and weak forms. For a,b,c∈V, define the real skew convective form c(a;b,c):=12∫D((a⋅∇)b⋅c−(a⋅∇)c⋅b) dx. The middle and last slots are displayed separately to emphasize c(a;b,c)=−c(a;c,b). In particular c(a;b,b)=0. The integrals are well-defined on V by Continuity, energy cancellation, and Sobolev bounds for skew convection ↗. If additionally div⁡a=0, then c(a;b,c)=∫D(a⋅∇)b⋅c.

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