Unbounded Line Pinning by Pairwise Disjoint Convex Bodies

For every integer m >= 3 we construct m+4 pairwise disjoint compact convex bodies with nonempty interiors in R^3 and a common transversal line such that every subfamily pinning that line contains at least m members. Thus isolated line transversals to arbitrary disjoint convex bodies admit no pinning bound depending only on the dimension. Four separated polytopes restrict the nearby transversals to a classical one-parameter family on a hyperbolic paraboloid. The remaining bodies are convex epigraphs of flat oscillatory perturbations: together they exclude every nonzero parameter, while each has an exclusive sequence of excluded parameters tending to zero. All contacts with the pinned line are distinct single points. An explicit extension gives the same conclusion in every dimension at least three. The construction is nonsemialgebraic and does not settle the separate question for pairwise disjoint polytopes. This is an AI-assisted, self-audited, unrefereed preprint; no external review or absolute priority is claimed.

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-10-19
DOI
https://doi.org/10.5281/zenodo.23460238
Primary Topic
Point processes and geometric inequalities
Type
preprint
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
preprint

Unbounded Line Pinning by Pairwise Disjoint Convex Bodies

Alper Ferudun
Zenodo (CERN European Organization for Nuclear Research)
Point processes and geometric inequalities
preprint

Unbounded Line Pinning by Pairwise Disjoint Convex Bodies

Alper Ferudun
preprint en

Abstract

For every integer m >= 3 we construct m+4 pairwise disjoint compact convex bodies with nonempty interiors in R^3 and a common transversal line such that every subfamily pinning that line contains at least m members. Thus isolated line transversals to arbitrary disjoint convex bodies admit no pinning bound depending only on the dimension. Four separated polytopes restrict the nearby transversals to a classical one-parameter family on a hyperbolic paraboloid. The remaining bodies are convex epigraphs of flat oscillatory perturbations: together they exclude every nonzero parameter, while each has an exclusive sequence of excluded parameters tending to zero. All contacts with the pinned line are distinct single points. An explicit extension gives the same conclusion in every dimension at least three. The construction is nonsemialgebraic and does not settle the separate question for pairwise disjoint polytopes. This is an AI-assisted, self-audited, unrefereed preprint; no external review or absolute priority is claimed.

Zenodo (CERN European Organization for Nuclear Research)
Point processes and geometric inequalities
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.