Driver closure for the R-324 endgame #
Three scoped closures on top of the driver scalar bound:
- the ambient exponent ledger for one complete contraction entity: the
left initial order, the right initial order, and the nested-cross
order partition the moment order
m, so the full2mcoupling weight splits into the driver weight and a leftover right/cross weight; - the uniform head-collapse budget instantiated from the integrated
Proposition 4.1 kernel majorant, with the
(Cλ)^{2n}factor absorbed by the small-coupling regime; - the terminal
y-Fourier evaluation of the driver-terminal phased density under the root measure, exchanging one raw outgoing Green leg for the paper second-order mode decay in the outgoing mode.
The ambient exponent ledger for one contraction entity #
The two within-half initial suffixes and the nested-cross initial suffix of one complete contraction entity partition the ambient moment order.
The doubled ambient exponent splits into the driver exponent and the leftover right/cross exponents.
Three-part multiplicative split of the full ambient coupling weight along the ledger of one contraction entity.
The free Green function's L¹ mass #
The paper second-order bracket is strictly positive.
Every second-order mode coefficient is dominated by the raw L¹
mass of the free Green function.
Regrouping the root parameter around the outgoing endpoint #
Regroup the root/terminal product so that the free outgoing endpoint
pairs with the terminal coordinates: ((y,zw),vr,u) ↦ ((zw,vr),(y,u)).
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The outgoing-endpoint regrouping preserves the product measures.
Uniform kernel-majorant budget in the small-coupling regime #
Order-uniform integrated Proposition 4.1 budget. In the
small-coupling regime |Cλ| ≤ 1 the order-dependent factor (Cλ)^{2n}
of the integrated kernel majorant is at most one, so a single explicit
ε⁻²/|log ε| budget dominates every primitive order at once.
Gap (c): the head-collapse budget instantiated. Pointwise
Proposition 4.1 kernel bounds at every reachable head, the small-coupling
regime, and the logarithmic window discharge the uniform head-collapse
budget with one explicit mode-independent B ≥ 1.
Terminal density norm with the raw outgoing Green leg split off:
under the direct outgoing geometry the whole y-dependence is one
translated free Green factor.
Exact y-marginal of the terminal density norm: the raw outgoing
Green leg integrates to the Green L¹ mass, independently of the
terminal coordinates.
The y-Fourier evaluation under the root measure. For a
terminal prefix with the direct outgoing Green geometry, and a
coefficient family carrying the outgoing character charT4 β at the
free outgoing endpoint but otherwise independent of it, the joint root
integral of the phased density is damped by the paper second-order mode
decay at β, at the price of the raw Green L¹ mass. Joint
integrability of the density is the only analytic hypothesis.
Gap (b), coefficient form. The leftover right/cross coupling weight lands multiplicatively on the two untouched scalar factors of the collapsed-head refined driver coefficient: the right initial residual integrand receives the right-half weight and the cross-cut primitive factor receives the nested-cross weight.
The multiplier-weighted collapsed-head refined driver coefficient
with the outgoing character charT4 β at the free outgoing endpoint
stripped off; it depends on the root parameter only through the two
measured endpoints and the right initial tuple.
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Stripping the outgoing character from the multiplier-weighted driver coefficient.
Norm of the reduced driver coefficient.
The gap-(a) interface: joint integrability of the driver-terminal
phased density under the root measure. This is the only analytic
input of the terminal y-Fourier evaluation.
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Gap (b), scalar form: the full-ambient-weight budget bound. The
2m-weighted refined physical integral is bounded by the head-collapse
budget raised to the retained suffix length times the root integral of
the terminal coordinate integral, with the leftover right-half and
nested-cross coupling weights carried inside the root integrand.
Gap (a) applied: the mode-decay upgrade of the driver-terminal
scalar bound. Under the direct outgoing Green geometry and the joint
integrability of the driver-terminal density under the root measure, the
weighted refined physical integral gains the paper second-order mode
decay in the outgoing mode β, at the price of the raw Green L¹
mass, against the joint L¹ mass of the driver-terminal density.
Consumer form of the mode-decay upgrade: the direct-outgoing Green premise is discharged from the driver-terminal schedule completion and the boolean shortcut flag of the frozen pairing.
Gaps (a)+(b) combined: the full-ambient-weight mode-decay bound.
The 2m-weighted refined physical integral gains the outgoing mode
decay, with the leftover right-half and nested-cross coupling weights
carried against the joint terminal density mass.
Gaps (b)+(c) assembled. The pointwise Proposition 4.1 kernel
bounds, the small-coupling regime, and the logarithmic window produce a
head-collapse budget B ≥ 1 for which the full-ambient-weight refined
physical bound holds.