OAI/Analysis/RieszRectifiability/Nets/CellDyadicScales.lean
3 declarations, 0 contain sorry, 0 declared as axioms
Comparing lattice generations with dyadic descendants
One lattice generation contracts the radius by 64, hence corresponds to six
dyadic halvings. Dividing a dyadic depth by six separates a whole lattice
generation from a bounded remainder, giving uniform comparisons of the two scales.
- theorem
OAI.RieszRectifiability.latticeRadius_eq_descendantRadiusline 20Source documentation
Advancing
tlattice generations is exactly6 * tdyadic halvings.theorem latticeRadius_eq_descendantRadius (R : ℝ) (k t : ℕ) : latticeRadius R (k + t) = descendantRadius (latticeRadius R k) (6 * t) := by …Mentions: OAI.RieszRectifiability.latticeRadius, OAI.RieszRectifiability.descendantRadius
- theorem
OAI.RieszRectifiability.descendantRadius_cell_remainderline 27Source documentation
The remainder modulo six records the dyadic contraction within a lattice generation.
theorem descendantRadius_cell_remainder (R H : ℝ) (k j : ℕ) : descendantRadius (H * latticeRadius R k) j = H * latticeRadius R (k + j / 6) / (2 : ℝ) ^ (j % 6) := by …Mentions: OAI.RieszRectifiability.descendantRadius, OAI.RieszRectifiability.latticeRadius
- theorem
OAI.RieszRectifiability.descendantRadius_cell_boundsline 38Source documentation
Positive dyadic descendant radii lie between fixed multiples of the matching lattice scale.
theorem descendantRadius_cell_bounds (R H : ℝ) (hR : 0 < R) (hH : 0 < H) (k j : ℕ) : (H / 64) * latticeRadius R (k + j / 6) ≤ descendantRadius (H * latticeRadius R k) j ∧ descendantRadius (H * latticeRadius R k) j ≤ H * latticeRadius R (k + j / 6) := by …Mentions: OAI.RieszRectifiability.latticeRadius, OAI.RieszRectifiability.descendantRadius