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[已并入 #740|不另派算力] periodic sewing residue 与完整簇形状 #787

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@LightChainr

动机

#739/#740 当前把两个现象分开讨论:

  1. complete horizontal-winding cluster intensity nu_ww^-1/2 e^{-kappa w} 前因子;
  2. complete-cluster vertical span E L ~ const sqrt(w) 的 Brownian-bridge morphology。

若二者来自同一 periodic one-particle / renewal branch,则它们不是独立猜想,而是同一个色散最低点的动量空间与实空间表现。

条件 one-particle calculation

假设 relevant periodic homology sector有一个可见最低 branch

E(p)=kappa + p^2/(2 mu)+O(p^4)

且 closure/form-factor weight a(p) smooth, a(0)=C>0。则每单位纵向长度的 periodic return/trace 给

nu_w ~ C sqrt[mu/(2 pi w)] exp(-kappa w).

若 dispersion relativistic sqrt(kappa^2+p^2) 且 leading weight常数,进一步

nu_w ~ C kappa/pi K_1(kappa w)
     ~ C sqrt[kappa/(2 pi w)] e^{-kappa w}[1+3/(8 kappa w)+...].

同一 quadratic minimum 的 transverse path action给 bridge width

sigma_w=sqrt(w/mu).

若正确 rooted complete component满足

L/sigma_w => R

R 是 standard Brownian bridge range,E R=sqrt(pi/2),则

E L ~ sqrt(pi/2) sqrt(w/mu).

因此 stiffness完全消掉:

2 e^(kappa w) nu_w E L -> C.

解释

所以旧 amplitude diagnostic

A_w=2 e^(kappa w) nu_w E L

的极限常数不是任意前因子,而是真实 complete SITE periodic closure 的 visible one-particle residue C。在这些假设下,A_w->1 等价于 unit residue C=1

这不会修复 finite-width 判决逻辑;仍需 remainder bound 才能从有限区间拒绝/接受 C=1

Near-critical tail

x=kappa w

nu_w=w^-1 I_-(x)[1+o(1)],

one-particle relativistic sewing预测

I_-(x) ~ C x/pi K_1(x)
       ~ C sqrt[x/(2pi)] e^-x [1+3/(8x)+...].

这与 free-boundary rectangle crossing 的 x e^-x 不同;periodic homology多一个 return/sewing x^-1/2 factor。

#740 应证明的最小对象

  1. actual complete SITE winding component 映到哪个 periodic renewal/transfer/field-theory sector;
  2. 该 sector 有唯一非退化最低 dispersion branch;
  3. scalar overlap/residue C 对应 complete-component Palm normalization,而不是 seam/path marked law;
  4. 同一 branch 控制 transverse Brownian bridge shape;
  5. C 是否等于1。

若 C!=1,不代表 Brownian sewing失败,只表示 closure residue非单位。

可计算接口

大检索/理论方向

检索 massive Potts/percolation off-critical field theory、torus twist/projector、periodic kink trace / form factor。Delfino–Viti 的 open rectangle crossing可作方法输入,但不能自动给 periodic homology closure residue。

最终给:

SEWING_SECTOR_IDENTIFIED / PARTIAL / NO,
residue C formula or minimal missing overlap,
Brownian-shape same-branch proof/gap,
finite remainder structure.

不做

  • 不用 free-boundary crossing amplitude替代 periodic C;
  • 不把 finite-width A_w!=1 当 asymptotic反证;
  • 不把 Brownian bridge两点连接直接改名 complete cluster;
  • 不新增无目标 width scan。

相关:#739, #740, #760, #774, draft #773

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