PreprintCC BY 4.0arXiv
The conductance filtration: sink-relative persistence and exact edge sensitivity for heat transport in particle-filled composites
Abstract
We formulate the thermal conductance ge of a particle pair as three branch types -- contact, near-contact and bond -- within a single construction, and we introduce the filtration that takes this ge as its axis (the conductance filtration) together with persistence taken relative to the sink boundary. We then show that the dissipation share is exactly the logarithmic sensitivity of the effective conductance, and that a finite change of a single edge is predicted exactly in closed form. The allocation of the dissipation among branch types, and the idealisation ratio of each mechanism (interface, matrix and particle), are thereby obtained as diagnostic quantities on one and the same graph representation.
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BibTeX
@misc{yasufuku2026conductance,
title = {{The conductance filtration: sink-relative persistence and exact edge sensitivity for heat transport in particle-filled composites}},
author = {Daisuke Yasufuku},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.30810},
eprint = {2609.30810},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.30810},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - The conductance filtration: sink-relative persistence and exact edge sensitivity for heat transport in particle-filled composites
AU - Daisuke Yasufuku
PY - 2026
DA - 2026/09/25
PB - arXiv
DO - 10.48550/arxiv.2609.30810
UR - https://arxiv.org/abs/2609.30810
AB - We formulate the thermal conductance g_e of a particle pair as three branch types -- contact, near-contact and bond -- within a single construction, and we introduce the filtration that takes this g_e as its axis (the conductance filtration) together with persistence taken relative to the sink boundary. We then show that the dissipation share is exactly the logarithmic sensitivity of the effective conductance, and that a finite change of a single edge is predicted exactly in closed form. The allocation of the dissipation among branch types, and the idealisation ratio of each mechanism (interface, matrix and particle), are thereby obtained as diagnostic quantities on one and the same graph representation.
ER -