The three short-time density factors on a cell #
Each factor multiplying rescaled quadratic energy is bounded by a common center Gaussian.
theorem
ESS.bu_short_three_cell_factors_bound
(scale a b : ℝ)
(hscale : 0 < scale)
(ha : 0 ≤ a)
(hb : 0 < b)
:
∃ (C : ℝ),
0 < C ∧ ∀ (k : ℤ),
0 ≤ k →
∀ (m : Fin 3 → ℤ) (ell : Fin 2048),
∀ z ∈ buShortShiftedDyadicCell k m ell,
z ∈ buShortHighStrip scale →
have Y := (CKN.Foundation.buSmallTimeDyadicCellCenter k m ell).1;
have Bound := C * Real.exp (-(Y 0 ^ 2 + Y 1 ^ 2) / 8) * Real.exp (b * Y 2 ^ 2);
Real.exp (-(z.1 0 ^ 2 + z.1 1 ^ 2) / (4 * z.2)) * (1 + z.1 2) ^ 4 ≤ Bound ∧ buShortShiftedWeight scale a z * (1 + z.1 2) ^ 4 ≤ Bound ∧ buShortShiftedWeight scale a z ≤ Bound
The tangential factor and both shifted Carleman factors share a
center Gaussian bound on the high normal strip (lem:bu-small-time).