OAI/MathematicalPhysics/NavierStokes/ForcedComputation/Programs/PulsePlateau.lean

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Exact local motion on the open plateau surrounding a pulse rectangle. The explicit collar allows source neighborhoods, rather than only the closed source rectangles, to follow the same affine motion.

  1. theorem OAI.ForcedComputation.PlanarHamiltonian.rectangleCutoff_one_near_plateau line 14
  2. theorem OAI.ForcedComputation.PlanarHamiltonian.Pulse.spatial_on_plateau line 20
  3. theorem OAI.ForcedComputation.PlanarHamiltonian.Pulse.curve_ode_plateau line 25
  4. theorem OAI.ForcedComputation.PlanarHamiltonian.rectanglePlateau_of_dist_lt line 34

    Source documentation

    A perturbation smaller than the rational collar remains on the exact polynomial plateau. The norm here is the coordinate maximum norm.

    theorem rectanglePlateau_of_dist_lt {R : RationalBox 2} {δ : ℚ}
        {x y : Plane} (hx : x ∈ R.carrier) (hxy : dist y x < (δ : ℝ)) :
        y ∈ rectanglePlateau R δ := by
    …

    Mentions: OAI.ForcedComputation.PlanarHamiltonian.rectanglePlateau

  5. theorem OAI.ForcedComputation.PlanarHamiltonian.notMem_collar_of_dist_lt line 44

    Source documentation

    Endpoint-gap separation survives a controlled perturbation.

    theorem notMem_collar_of_dist_lt {R S : RationalBox 2} {gap δ ε : ℚ}
        (hgap : PlanarRouting.EndpointGap gap R S) (hsmall : 2 * δ + ε ≤ gap)
        {x y : Plane} (hx : x ∈ S.carrier) (hxy : dist y x < (ε : ℝ)) :
        y ∉ (rectangleCollar R δ).carrier := by
    …

    Mentions: OAI.ForcedComputation.PlanarRouting.EndpointGap, OAI.ForcedComputation.PlanarHamiltonian.rectangleCollar