Physical residuals in the slow-coordinate order (T,Z) #
PhysicalResidualBridge uses slow coordinates (Z,T). The correction-state
pipeline uses (T,Z). The map below swaps those two input coordinates and
leaves radius, fast variables, angle, and vector components unchanged.
Extension to the actual angular cylinder; the angle is not permuted.
Equations
- NavierStokes.PhysicalResidualTZ.swapCylinder = { toLinearEquiv := NavierStokes.PhysicalResidualTZ.swapSlow.prodCongr (LinearEquiv.refl ℝ ℝ), norm_map' := ⋯ }
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This is exactly the continuous linear map used for swapSlow in the
variable-gauge module, expressed using only frozen dependencies.
Pullback of a vector field under a fixed linear change of coordinates.
Equations
- NavierStokes.PhysicalResidualTZ.reindexVector e V x = e.symm (V (e x))
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The chain rule is valid even for the total derivative convention at a nondifferentiable point, because the coordinate change is an equivalence.
Swap field, defined pointwise by f n (swapSlow x).
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Swap triple, given by ⟨swapField m.radial, swapField m.angular, swapField m.axial⟩.
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- One or more equations did not get rendered due to their size.
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Swap operators, bundling epsilon, radialFrequency, fastCoefficient, radius and the
required compatibility proofs.
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- One or more equations did not get rendered due to their size.
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Swap context, bundling operators, base, virtualTheta, virtualAxial.
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- One or more equations did not get rendered due to their size.
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Swap oscillation, defined pointwise by f n (swapCylinder x).
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Swap errors, bundling base, gaussian, aliasError.
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- One or more equations did not get rendered due to their size.
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Swap state, bundling mean, pressure, oscillation, oscillatoryPressure and the
required compatibility proofs.
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- One or more equations did not get rendered due to their size.
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Exact covariance of the full nonlinear correction residual. It includes the fixed base error once, exactly as in the original state definition.
Literal operator data in the order (T,Z). No derivative identity is
assumed: all derivative transport is supplied by the preceding theorems.
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The actual scaled physical graph, with the slow coordinates in (T,Z) order.
Equations
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Graph source TZ, given by {p | 0 < p.2 0 ∧ graphMapTZ G p ∈ U}.
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Graph radial TZ, given by reindexVector swapCylinder.toContinuousLinearEquiv G.radial.
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Graph angular TZ, given by reindexVector swapCylinder.toContinuousLinearEquiv PhysicalResidualBridge.ScaledGraph.angular.
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- One or more equations did not get rendered due to their size.
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Graph axial TZ, given by reindexVector swapCylinder.toContinuousLinearEquiv G.axial.
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Graph temporal TZ, given by reindexVector swapCylinder.toContinuousLinearEquiv G.temporal.
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Velocity TZ, given by G.velocity (fun x => a (swapCylinder x)).
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Pressure TZ, given by G.pressure (fun x => p (swapCylinder x)).
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Exact covariance of the complete real graph equation in the two layouts.
Absolute lift TZ, given by swapSlow (PhysicalResidualBridge.absoluteLift h p).
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The full correction-state residual in (T,Z) coordinates is the actual
scaled Cartesian Navier--Stokes residual. The fixed base-pressure equation
and the neighborhood representation of the actual physical fields remain explicit.