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LeanPool.ParameterFreeGradient.V7.Proofs.Stage5AboveTwoLowerS5AHessianContinuity.HessianContinuity

Ambient norm estimates imply continuity of the kernel Hessian at the origin.

theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.kernelHessian_zero {r theta : ℝ} (_hr : 2 < r) (htheta : 1 < theta) (htr : 2 * theta < r) {d : ℕ} :

The coefficient in the coordinatewise bound for the kernel Hessian.

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Instances For
    theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.hessianCoordConstant_nonneg {r theta : ℝ} (hr : 2 < r) (htheta : 1 < theta) {d : ℕ} :
    theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.abs_kernelHessianCoord_first_apply_le {r theta : ℝ} (hr : 2 < r) (htheta : 1 < theta) {d : ℕ} (x h : Point d) (hx : x ≠ 0) (i : Fin d) :
    |((4 * theta * O3.Experimental.scalarJ r (x i)) • ((2 * theta / r - 1) * O3.lpPower r x ^ (2 * theta / r - 2)) • S5ARepair.lpPowerFDeriv r x) h| ≤ 4 * theta * |2 * theta / r - 1| * r * S5AFinalRepair.lpAmbientConstant r d * O3.lpNorm r x ^ (2 * theta - 2) * ‖h‖
    theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.abs_kernelHessianCoord_second_apply_le {r theta : ℝ} (hr : 2 < r) (htheta : 1 < theta) {d : ℕ} (x h : Point d) (hx : x ≠ 0) (i : Fin d) :
    |((4 * theta * O3.lpPower r x ^ (2 * theta / r - 1)) • ((r - 1) * |x i| ^ (r - 2)) • ContinuousLinearMap.proj i) h| ≤ 4 * theta * (r - 1) * O3.lpNorm r x ^ (2 * theta - 2) * ‖h‖
    theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.abs_kernelHessianCoord_apply_le {r theta : ℝ} (hr : 2 < r) (htheta : 1 < theta) {d : ℕ} (x h : Point d) (hx : x ≠ 0) (i : Fin d) :
    |(S5ARepair.kernelHessianCoord r theta x i) h| ≤ hessianCoordConstant r theta d * O3.lpNorm r x ^ (2 * theta - 2) * ‖h‖
    theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.norm_kernelHessian_le_lpNorm_rpow {r theta : ℝ} (hr : 2 < r) (htheta : 1 < theta) (htr : 2 * theta < r) {d : ℕ} (x : Point d) :

    The coefficient in the ambient norm bound for the kernel Hessian.

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    • One or more equations did not get rendered due to their size.
    Instances For
      theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.hessianAmbientConstant_nonneg {r theta : ℝ} (hr : 2 < r) (htheta : 1 < theta) {d : ℕ} :
      theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.norm_kernelHessian_le_ambient_rpow {r theta : ℝ} (hr : 2 < r) (htheta : 1 < theta) (htr : 2 * theta < r) {d : ℕ} (x : Point d) :
      theorem V7.Stage5AboveTwoLower.S5AHessianContinuity.continuousAt_kernelHessian_zero {r theta : ℝ} (hr : 2 < r) (htheta : 1 < theta) (htr : 2 * theta < r) {d : ℕ} :

      The exact narrow-repair gate: the concrete ambient Hessian converges to zero in continuous-linear-map operator norm at the origin.