claimroutineinferred_dep

Averaging over neighbor pairs

Claim·§7.1 A pointwise estimate and its tail consequence·inside lemTail of H star is negligible

Statement (paper)

With At=Eμ[Hp∗1T]A_t=\E_\mu[H_p^*\mathbf1_T], where p∼μp\sim\mu and two neighbors are drawn independently and uniformly given pp, one has (1−dP,min⁡−1)At≤6EE[min⁡(Hp∗,Hq∗)1T]+Cm,(1-d_{P,\min}^{-1})A_t\le 6\E_E[\min(H_p^*,H_q^*)\mathbf1_T]+C_m, where CmC_m is an absolute upper bound for 6EEmpq6\E_E m_{pq}.

In plain English

Writing At=Eμ[Hp∗1T]A_t=\E_\mu[H_p^*\mathbf1_T] for the tail moment, averaging over a point pp and two independently chosen neighbors gives (1−dP,min⁡−1)At≤6EE[min⁡(Hp∗,Hq∗)1T]+Cm(1-d_{P,\min}^{-1})A_t\le 6\E_E[\min(H_p^*,H_q^*)\mathbf1_T]+C_m, where CmC_m is an absolute bound on 6EEmpq6\E_E m_{pq}.

Why it's here

This averages the capped pointwise inequality of the previous claim over p∼μp\sim\mu and over pairs of distinct neighbors. It converts a bound on Hp∗H_p^* at a single point into a bound on the edge average of min⁡(Hp∗,Hq∗)\min(H_p^*,H_q^*) on the tail set, plus the constant CmC_m. The factor 1−dP,min⁡−11-d_{P,\min}^{-1} reflects excluding the case where the two neighbors coincide. The resulting edge-averaged bound is what the Young's inequality step then uses to absorb the tail moment AtA_t.}
Classified routine:
Direct averaging of the previous capped pointwise inequality (claim-ext-tail-1) over p and pairs of neighbors. The only extra bookkeeping is the factor accounting for coincident neighbor pairs.

Sources

PaperOpen
Section
§7.1 A pointwise estimate and its tail consequence
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sections/06-extraction.tex:130
Leannot aligned

Phase 2 aligns this node to a Lean declaration.

Friction

  • info
    inferred_dep
    outline: "Averaging over neighbor pairs" rests on claim-ext-tail-1