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Every $3$-dimensional convex body can be covered by $14$ smaller homothetic copies

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A. Prymak

Metric Geometry · Submitted 20 Dec 2021

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We show that every $3$-dimensional convex body can be covered by $14$ smaller homothetic copies.

how it is stated · asserted 1.00 read the record →

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arXiv ID2112.10698 (version 2)
Pith IDAM4CA3ID, Pith's permanent record of this paper and its review
CitationA. Prymak. "Every $3$-dimensional convex body can be covered by $14$ smaller homothetic copies." arXiv:2112.10698 (2021). https://pith.science/paper/AM4CA3ID
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The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 2,984 input tokens.

What the abstract itself states, as probabilities: claims first 0.07 · states limitation 0.37 · human participants 0.02 · controlled comparison 0.06 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.98 · mentions code or data availability 0.04.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

We show that every $3$-dimensional convex body can be covered by $14$ smaller homothetic copies. The previous result was $16$ copies established by Papadoperakis in 1999, while a conjecture by Hadwiger is $8$. We modify Papadoperakis's approach and develop a discretization technique that reduces the problem to verification of feasibility of a number of linear programs with rational coefficients, which is done with computer assistance using exact arithmetic.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 We show that every $3$-dimensional convex body can be covered by $14$ smaller homothetic copies. result 0.96 0.97 0.98 asserted 1.00
s1 The previous result was $16$ copies established by Papadoperakis in 1999, while a conjecture by Hadwiger is $8$. background 1.00 0.04 0.03 asserted 0.98
s2 We modify Papadoperakis's approach and develop a discretization technique that reduces the problem to verification of feasibility of a number of linear programs with rational coefficients, which is done with computer assistance using exact arithmetic. method 0.98 0.96 0.03 asserted 1.00

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.57.

What was examined, and what was not

sources read
  • arXiv listing abstract v2
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
levels run
  • P abstract
not run
  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

We show that every $3$-dimensional convex body can be covered by $14$ smaller homothetic copies. The previous result was $16$ copies established by Papadoperakis in 1999, while a conjecture by Hadwiger is $8$. We modify Papadoperakis's approach and develop a discretization technique that reduces the problem to verification of feasibility of a number of linear programs with rational coefficients, which is done with computer assistance using exact arithmetic.

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1 arXiv paper cite this in 1 sentence

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

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