---
title: "The name \"Hadamard–Hamel problem\" for the kinetic-energy substitution question predates Robert Singer's 2026 preprint by at least a decade"
type: "claim"
status: "seedling"
audit_status: "capture-verified — confirmed by direct read of the reference list of Borisov, Mamaev & Bizyaev (2016), fetched via extract_pdf against nd.ics.org.ru (tls verified); source_quote verified grounded:true via quote_check at capture time (2026-10-10). | APPEND 2026-10-13 (Cali's daily review, Claude Fable 5.1): bookkeeping: source_title was a quoted scalar followed by a second bracketed string and a trailing phrase, which is invalid YAML, so the whole frontmatter failed to parse since promotion on 10-12 (Obsidian and every checker); now one quoted string, wording unchanged → pointer 00-meta/cali-checklist.md §2"
watch_flag: "[unverified-content] This confirms only the existence, authorship, and approximate date of Borisov, Kilin & Mamaev's 2015 paper (via its citation entry in a Tier-1 source) — the 2015 paper itself has not been read at first hand by this vault. It is the most direct remaining candidate lead for corroborating the geometric/residue mechanism held back by the single-source cap; see the progress log on [[question-corroborate-singer-2609-35857-hamels-paradox-myth]]."
source_url: "https://nd.ics.org.ru/upload/iblock/dfd/nd1603007_en.pdf"
source_sha: "d2ea065dd8cc4a802fcb4a9fc848a0fc99908778c9604a4052787f5302a3e6e9"
source_title: "Историко-критический обзор развития неголономной механики: классический период [Historical and Critical Review of the Development of Nonholonomic Mechanics: the Classical Period] — reference list, item [10]"
source_author: "A. V. Borisov, I. S. Mamaev, I. A. Bizyaev"
source_date: 2016
source_venue: "Russian Journal of Nonlinear Dynamics (Nelineinaya Dinamika), vol. 12, no. 3 (2016), pp. 385-411, reference list"
source_quote: "Borisov A. V., Kilin A. A., Mamaev I. S. On the Hadamard – Hamel problem and the dynamics of wheeled vehicles, Regul. Chaotic Dyn., 2015, vol. 20, no. 6, pp. 752–766."
source_tier: 1
independent_roots: 1
provenance: "Promotion from 10-inbox/raw/2026-10-10-the-hamels-paradox-myth-branch-now-rests-three.md, 2026-10-12"
origin: "batch"
derived_from: ["10-inbox/raw/2026-10-10-the-hamels-paradox-myth-branch-now-rests-three.md"]
date_created: "2026-10-12T00:00:00.000Z"
writer_model: "claude-sonnet-5"
tags: ["physics","classical-mechanics","nonholonomic-systems","history-of-science","historiography","hamel","terminology","primary-source-verification"]
seek_code_commit: "d40ee39"
quote_sweep: "PASS 2026-10-13 — source_quote verbatim (normalized) in the capture-time archive (sha256 d2ea065dd8cc…), same-night model-free sweep"
verified_verbatim: "2026-10-13 — source_quote matched verbatim (normalized) against a direct fetch of source_url by seek_verify (no model involved)"
---


Singer's preprint "The Myth of Hamel's Paradox" (arXiv:2609.35857) states that "the Russian literature studies these limits to this day as the Hadamard–Hamel problem" (see [[claim-substitution-validity-limits-established-1895-1904-before-paradox-label]]; the term is also recorded as an alias on [[entity-illegitimate-form-of-the-kinetic-energy]]). The reference list of Borisov, Mamaev & Bizyaev's 2016 review independently confirms this is not a term coined for or by Singer's paper: it cites "Borisov A. V., Kilin A. A., Mamaev I. S. On the Hadamard–Hamel problem and the dynamics of wheeled vehicles, Regul. Chaotic Dyn., 2015, vol. 20, no. 6, pp. 752–766" — a paper by an overlapping group of Russian authors using exactly that name in a journal title eleven years before Singer's preprint was submitted.

This confirms the name's currency in the specialist literature predates Singer's use of it, supporting his claim that the terminology (unlike "Hamel's paradox" itself) is not a recent coinage. The underlying 2015 paper has not been read at first hand by this vault — only its existence, authorship, and venue, via this citation entry.

> [!note] Seek's commentary:
> A small, cheap confirmation, and worth keeping precisely because it's cheap: one footnote in a 2016 paper does more to establish that "Hadamard–Hamel problem" is real specialist vocabulary than any amount of Singer asserting it would on its own. It's also a nice asymmetry to note against the other claim in this cluster — the *problem* this term names was apparently never lost, even while the *question's* false history ("Hamel left this open") was busy calcifying in English-language citation chains a few years later. — Seek