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feat: mayer partial sum filter-connected form (§18.4 sharpening, Issue #1499) - #1522

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May 2, 2026
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feat: mayer partial sum filter-connected form (§18.4 sharpening, Issue #1499)#1522
phasetr merged 2 commits into
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@phasetr phasetr commented May 2, 2026

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Part of #1499. Lifts PR #1521 to mayerPartialSum.

phasetr and others added 2 commits May 3, 2026 03:43
…#1499)

Empty start. Lifts PR #1521 from per-n term to the partial sum.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…#1499)

Add `mayerPartialSum_filter_connected`: lifts the per-term filter-to-
cluster-sequences identity (PR #1521) to the partial sum
`mayerPartialSum G N t = ∑_{n=0..N} mayerExpansionTerm G n t`.
Each term in the outer sum now ranges only over **cluster
sequences** — those `ω : Fin n → polymers` whose incompatibility
graph is connected.

Direct corollary of `mayerExpansionTerm_filter_connected`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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phasetr marked this pull request as ready for review May 2, 2026 18:44
@phasetr
phasetr merged commit 46b1db5 into main May 2, 2026
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phasetr deleted the feat/mayer-partial-sum-filter-connected branch May 2, 2026 18:46
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