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BIG-B18: Boundary Readout Operators in Boundary Information Geometry: From Read-Start Local History to Interface-Core Path Exposure in a Reaction-Diffusion-Inspired Front Model

Sep 2026 · Zenodo (CERN European Organization for Nuclear Research)

Abstract

English Description BIG-B18 develops a unified readout-operator interpretation of memory-bearing boundary dynamics in Boundary Information Geometry (BIG). BIG-B17 showed, in a reduced free-boundary model, that retained boundary history affects later response when it remains locally readable in the current moving-boundary frame. BIG-B18 extends this distinction between stored history and readable history to a reaction-diffusion-inspired propagating front with an inhibitor-like trace. The central claim is operator-level: A retained history field is not, by itself, a response variable. It becomes dynamically effective only after projection through a boundary-dependent readout operator. The reduced readout form is: L_read = ∫ λ(t) ∫ m(x,t) W(x;R(t)) G_ΣΦ dx dt. In the B17 positive-feedback regime, this reduces approximately to a read-start local load. In the B18 reaction-diffusion-inspired inhibitory front model, later front suppression is better organized by path-integrated interface-core / threshold-gated trace exposure than by read-start local trace or global trace mass. Scope and limitations: This work is a reduced numerical and operator-level study. It does not claim to derive reaction-diffusion chemistry, material interface physics, biological adaptation, wound healing, immune memory, neural memory, learning, consciousness, or quantum measurement. The reaction-diffusion front is used as a physically recognizable reduced test bed for the stored-history versus readable-history distinction. Japanese Description BIG-B18 は、Boundary Information Geometry(BIG/境界情報幾何学)における履歴保持境界の結果を、統一的な読み出し作用素として整理する working paper である。 BIG-B17 では、縮約自由境界モデルにおいて、保持された境界履歴が後続応答を変えるためには、現在の移動境界フレームから局所的に読み出し可能であることが重要であることを示した。BIG-B18 では、この「保持履歴」と「読み出し可能履歴」の区別を、阻害 trace を持つ reaction-diffusion 型伝播前線へ拡張する。 中心となる主張は、作用素レベルのものである。 保持履歴場は、それ自体では応答変数ではない。それは、境界依存読み出し作用素によって射影されたときに、はじめて動的に有効になる。 縮約された読み出し形式は次のように表される。 L_read = ∫ λ(t) ∫ m(x,t) W(x;R(t)) G_ΣΦ dx dt. B17 の positive-feedback regime では、この読み出しは近似的に read-start local load として整理された。一方、B18 の reaction-diffusion 型 inhibitory front model では、後続の front suppression は、read 開始時点の局所 trace や大域的 trace 量よりも、経路積分された interface-core / threshold-gated trace exposure によってよりよく整理される。 範囲と限界:本稿は、縮約的な数値検査および作用素レベルの研究である。reaction-diffusion 化学、材料界面物理、生物学的適応、創傷治癒、免疫記憶、神経記憶、学習、意識、量子測定を導出するものではない。reaction-diffusion 型前線は、保持履歴と読み出し可能履歴の区別を検査するための、物理的に解釈しやすい縮約テストベッドとして用いられている。

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