D ec 1 99 8 Helicity invariants in 3 D : kinematical aspects

  • Hasan Gümral
  • Published 2008

Abstract

Exact, degenerate two-forms Θ k = dθ k on time-extended space R × M which are invariant under the unsteady, incompressible fluid motion on three-dimensional region M are introduced. The equivalence class up to exact one-forms of θ k is splitted by the velocity field. The components of this splitting corresponds to Lagrangian and Eulerian conservation laws… (More)

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