RebaseJoinRegated #
Ported from scottnarmstrong/Superdiffusion at 7f20476385d4af418f110303085ad0740c9eba46. Module imports, support namespace and local option directives adapted for Lean Pool.
The re-gated provider assembly, the outer join #
This module is a conditional A, not a source-node closure. It is
The outer join re-cut at the frozen statement
(Algsuperdiff/Section4/Provider/ExcessDecay/ProviderEpsFree.lean, read for
the byte-verification, never imported). Exactly two literals of the
display sit at the statement's own existential C rather than at (1/2): the
hoisted funding line's threshold C⁻¹ s⁴ and the general clause's
good-event threshold C⁻¹ s⁴. The interior clause's event stays at
(1/2).
Why this is a re-cut and not a composition #
hgen is a hypothesis, and both of those thresholds sit inside its own
hypotheses: hgen is funded less and gated on a smaller event, i.e. it is a
weaker caller obligation than the (1/2)-gated join's. A weaker hypothesis
cannot be fed to that theorem, so its script is re-run, and the two
back-ports appear where the constants are chosen:
- the interior clause (
exists_interiorClause_anchorShape, gated at(1/2)) is funded from theC⁻¹ s⁴line throughclauseEpsilon_le_half; - the caller's
hgenis funded throughclauseEpsilon_antiat its own constant; - the conclusion's
C⁻¹ s⁴event is pushed intohgen's (larger) one by the provedGoodEvents.goodEventAt_mono_ep.
The joint constant is max (max C_gen C_int) 2: the 2 is exactly what makes
C⁻¹ s⁴ ≤ 1/2 on the anchor's own range s ≤ 1.
What the module discharges, unconditionally #
- the outer join: the two clauses under one existential constant;
- the a.e. layer: the two almost-sure statements intersected;
- the
ℝ≥0∞shell of both clauses; - the binder weakening
n + 3 ≤ m ⟹ n + 2 ≤ mat the interior-instance call; - the
ε-back-ports at both thresholds.
The caller obligation hgen, in words #
On the anchor's own binders, funded at γ|log γ|² ≤ (s/8)^{3/2} c⋆² · C⁻¹ s⁴,
and on the good event 𝒢(n+3, z; s/8, C⁻¹ s⁴), almost surely,
‖u − v‖_{L²(x+□_n)}
≤ C ( s^{-4} 𝓔_{s/8}(z+□_{n+3}) ( ‖u − (u)_{W'}‖_{L²(W')}
+ s^{-3/2} 3^n |(∇h)_W| )
+ s^{-7} σ_n^{-1} 3^{(1+s)n} [g]_{H^s(W')}
+ s^{-6} 3^{(1+s)n} [∇h]_{H^s(W')}
+ s^{-6} 3^n ‖∇h‖_{L²(W')} ) ,
W = (z + □_{n+2}) ∩ □_m , W' = (z + □_{n+3}) ∩ □_m ,
with every carrier the frozen statement's own, including its two deliberate
asymmetries: the in-bracket ∇h average stays at W (not W'), and the
interior clause's slot, gate, flux index and (1/2) event all stay at n+2.
References #
- ABK26,
l.harmonic.approximation.good.scales; the frozen block ofAlgsuperdiff/Section4/Provider/ExcessDecay/ProviderEpsFree.lean.
Nonnegative profiles may price the final gradient leg of a comparison estimate.
Equations
- One or more equations did not get rendered due to their size.
Instances For
Join general and interior clauses with an arbitrary nonnegative gradient weight.
The frozen block, from the proved interior chain and one real-valued caller obligation.
The conclusion is the frozen statement byte-for-byte (only the two
indicator binders omega' carry a leading underscore, forced by the
repository's zero-warning gate: the frozen file escapes the unusedVariables
linter only through its sorry). The hypothesis hgen is a conditional A
obligation, not a premise of the pinned source statement.