---
id: "20261106-0221-does-boltyanskiis-own-1994"
title: "Does Boltyanskii's own 1994 primary account confirm Pesch & Plail's secondary summary of the Pontryagin naming-pressure testimony?"
type: "capture"
status: "promoted"
origin: "batch"
promoted_to: ["30-notes/claim-pesch-plail-2012-retelling-of-boltyanskii-testimony-is-self-consistent-not-independent.md","30-notes/claim-pesch-plail-direct-contact-with-boltyanskii-and-gamkrelidze-beyond-1994-report.md","40-entities/entity-e-j-mcshane.md","40-entities/entity-rozonoer.md"]
not_promoted: ["Claim 1 (the 1994 report's full citation located; the report itself could not be found, obtained, or read after a genuine search) — this is a claim about search process and a document's own metadata/location, not about the world; per promote.md 5a it was routed into the open question's log instead of a claim-note. See the progress entry dated 2026-11-06 in 50-questions/question-verify-boltyanskii-1994-primary-naming-pressure-testimony.md, which stays status: open — this capture narrows the gap but does not close it.","Entity candidate Michael Plail — stays a mention, not a hub, per the 2026-10-01 co-authorship-alone ruling: his only separate-standing lead (the unread 1998 monograph Die Entwicklung der optimalen Steuerungen) is a work the vault knows about but has not read. Logged instead as an Updates line on entity-hans-josef-pesch.md.","Wikipedia's Boltyanskii death-date discrepancy (1925–2019 vs. the vault's existing 1925–2011) — no kept claim rests on it, so it did not clear the bar for a new 50-questions/ entry; flagged instead to 00-meta/seek-flags.md (2026-11-06, [entity]) and noted on entity-v-g-boltyanskii.md.","Gamkrelidze's 2019 Steklov memoir and Plail's 1998 monograph as further-leads items — both already tracked elsewhere (the Gamkrelidze entity page's existing paywall note; the new Pesch entity-page update naming the Plail monograph) and not duplicated here as new questions."]
writer_model: "claude-sonnet-5"
date_created: "2026-11-06T00:00:00.000Z"
provenance: "Batch research run, 2026-11-06, targeted against open question question-verify-boltyanskii-1994-primary-naming-pressure-testimony"
derived_from: []
verifies: "question-verify-boltyanskii-1994-primary-naming-pressure-testimony"
tags: ["boltyanskii","pontryagin","pesch-plail","maximum-principle","credit-attribution","soviet-union","source-verification","history-of-mathematics"]
source_url: "https://bibliotekanauki.pl/articles/970918.pdf"
source_title: "The Maximum Principle of optimal control: A history of ingenious ideas and missed opportunities"
source_author: "Hans Josef Pesch and Michael Plail"
source_date: 2009
source_venue: "Control and Cybernetics, vol. 38 (2009), no. 4A, pp. 973–995"
source_tier: 2
source_sha: "9c020a040ebe80a02bf0b7e5021b39868d245406c26fb8a3607acfa258cbd13f"
source_url_2: "https://www.maths.tcd.ie/EMIS/journals/DMJDMV/vol-ismp/48_pesch-hans-josef-cold-war.pdf"
source_title_2: "The Cold War and the Maximum Principle of Optimal Control"
source_author_2: "Hans Josef Pesch and Michael Plail"
source_date_2: 2012
source_venue_2: "Documenta Mathematica, Extra Volume: Optimization Stories (2012), pp. 331–343"
source_tier_2: 2
source_sha_2: "65db22df5b5d342e9bbc021c2b285c78854a17e07f6f7353308a31715124e846"
source_url_3: "https://en.wikipedia.org/wiki/Vladimir_Boltyansky"
source_title_3: "Vladimir Boltyansky"
source_author_3: "Wikipedia contributors"
source_date_3: 2026
source_venue_3: "Wikipedia"
source_tier_3: 4
source_sha_3: "c9e0bac3db2e81c28e0f69157a3665e9834ca67718d089b1afa26bac31f3c9cf"
seek_code_commit: "d40ee39"
---


This capture tried to locate and read [[entity-v-g-boltyanskii|V.G. Boltyanskii]]'s own 1994 primary account directly, to check it against [[entity-hans-josef-pesch|Pesch]] & Plail's secondary summary underlying [[claim-boltyanskii-testimony-locates-pontryagin-naming-convention-in-internal-soviet-pressure]]. The primary document was precisely identified but could not be obtained or read. A second, independently-published retelling of the same testimony by the same historians was found and read in full, and is recorded here as the nearest available check — it is self-consistency, not independent primary confirmation.

## Claim: Boltyanskii's 1994 primary is now fully identified bibliographically, but after a genuine search it could not be located, obtained, or read — the core question stays unverified

verifies: question-verify-boltyanskii-1994-primary-naming-pressure-testimony

Pesch & Plail's 2009 reference list, read directly via `extract_pdf` (source_sha above), gives the full citation for the source they call "Boltyanskii (1994)": "Boltyanskii, V.G. (1994) The Maximum Principle — How it came to be? Schwerpunktprogramm der Deutschen Forschungsgemeinschaft 'Anwendungsbezogene Optimierung und Steuerung', Report No. 526, University of Technology Munich, Munich." This is not a journal article or a monograph; it is an internal technical report in a West German DFG (Deutsche Forschungsgemeinschaft) priority-program report series hosted by the Mathematisches Institut, Technische Universität München — grey literature, not a peer-reviewed or widely-distributed publication.

A dedicated search for this report — direct web search by title and report number, the TUM university library catalog (blocked by an Anubis bot-challenge wall on direct fetch), WorldCat, and German union catalogs (K10plus/GVK/B3Kat) by title and author — found no digitized copy, no library holding record, and no citation anywhere online that quotes its contents directly. One search-engine summary attributed a citation of "Report No. 526, pp. 1–30" to a Springer article (DOI 10.1007/BF02365017); fetching that article's own reference list directly (via `archive_page`) showed this was not accurate — that list cites only Boltyanskii's 1969 monograph, not the 1994 report. No other lead on the report surfaced. Per the sourcing-floor rule for an outcome that cannot be forced: the core question — does Boltyanskii's own 1994 words confirm Pesch & Plail's summary — is `[unverified — could not confirm or deny after search]`. The report may exist only in German university libraries or DFG program archives not reachable by this session's tools.

> [!note] Seek's commentary:
> I expected to either find the report or find a dead end quickly. Instead I found something in between: a precise, citable description of a document that functionally doesn't exist on the open web. "Report No. 526, 1994, Technische Universität München" is specific enough that a manual library visit or an interlibrary loan request could probably produce it. That's a real next step, not a shrug — it's just not a step this session's tools can take.
> — Seek

## Claim: Pesch & Plail's 2012 retelling of the same testimony, in a different venue, restates it in materially consistent terms — self-consistency across two tellings by the same historians, not independent corroboration

Pesch & Plail published a second, shorter account of the same episode three years later, in *Documenta Mathematica*'s *Optimization Stories* extra volume — a different journal from the 2009 *Control and Cybernetics* piece, read here directly via `extract_pdf` (source_sha_2 above). Its version of the naming-pressure testimony: "Boltyanskii claimed the version of the maximum principle as a necessary condition to be his own contribution and described how Pontryagin hampered his publication. He said Pontryagin intended to publish the results under the name of four authors. After Boltyanskii refused to do so, he was allowed to publish his results in 1958 but said that he had to praise Pontryagin's contribution disproportionally and had to call the principle Pontryagin's maximum principle." This matches the 2009 summary's substance almost exactly (compare the 2009 wording already in the vault: "...he had to appreciate Pontryagin's contribution disproportionally. Moreover, he had to refer to McShane's needle variations and to call the principle Pontryagin's maximum principle") — the only differences are "praise" for "appreciate" and the 2012 version dropping the McShane needle-variations detail. The 2012 version also adds a specific detail absent from 2009: "According to Boltyanskii, Rozonoér, an engineer, was encouraged to publish a tripartite work on the maximum principle in Avtomatika i Telemekhanika in 1959, in order to disseminate the knowledge of the maximum principle in engineering circles and to contribute this way to the honour of Pontryagin as discoverer of the maximum principle."

This is not independent corroboration — both tellings trace to the same authors and, presumably, the same underlying 1994 report (the 2012 paper's own reference list does not re-cite "Boltyanskii (1994)" separately; it points the reader back to the 2009 paper instead). What it shows is that Pesch & Plail did not alter, soften, or walk back the account across two separate publications in two different journals, three years apart, and the second telling adds rather than removes specific detail (the Rozonoér point). That is evidence of the authors' consistency, not of the underlying 1994 testimony's accuracy.

## Claim: Pesch & Plail's 2012 paper states that their account partly rests on direct statements from Boltyanskii himself, not solely on the written 1994 report

Elsewhere in the same 2012 paper, discussing a related but distinct point (whether the Pontryagin group knew the calculus-of-variations literature during the mid-1950s development), Pesch & Plail write: "Both Boltyanskii and Gamkrelidze concur in statements to the authors, that the somehow comparable conditions of the calculus of variations were not known during the development phase of the maximum principle, although Bliss' monograph of 1946 existed in a Russian translation from 1950." This establishes that Pesch & Plail had some direct contact with Boltyanskii (and with [[entity-r-v-gamkrelidze|Gamkrelidze]]) beyond reading the cited 1994 report — "statements to the authors" implies correspondence or conversation, not only a document review.

This sentence is not explicitly tied to the naming-pressure passage itself (it appears in the paper's section on the calculus-of-variations question, immediately before the priority-quarrel section), so it cannot be read as direct confirmation that the naming-pressure account specifically was restated to the authors in person. But it does establish that the vault's existing [[claim-boltyanskii-testimony-locates-pontryagin-naming-convention-in-internal-soviet-pressure|naming-pressure claim]] rests on historians who had some ongoing direct relationship with their subject, not solely on a thirty-year-old written report read cold — a relevant, if partial, strengthening of confidence in the secondary account's fidelity, short of primary confirmation.

> [!note] Seek's commentary:
> This is the closest thing to good news this capture found, and it's still a long way from the primary source. "The historians talked to the man" is a real fact and it matters — it means Pesch & Plail weren't working from a single static document that could misrepresent him without his knowledge. But it's still their rendering of what he told them, not his own written words, and the specific sentence that proves the contact is about a different claim. I'm recording it honestly as partial reassurance, not as the upgrade the question was asking for.
> — Seek

## Further leads
- Boltyanskii's 1994 report (Report No. 526, Mathematisches Institut, TU München) is a plausible target for a manual library-catalog check or interlibrary loan request — DFG Schwerpunktprogramm report series of this era (e.g. Reports 8, 12, 448, 496) are held in the TUM VuFind catalog (`search.ub.tum.de`), which returned an Anubis bot-challenge wall to this session's direct fetch rather than content; worth a manual retry or a Wayback Machine capture attempt.
- Wikipedia's "Vladimir Boltyansky" page (source_tier_3 above, Tier 4, pointer only) gives his dates as 1925–2019, which conflicts with this vault's existing [[entity-v-g-boltyanskii]] entity note, currently dated "(1925–2011)" — a discrepancy worth checking against a Tier 1–2 biographical source before correcting either way.
- Gamkrelidze's 2019 Steklov memoir ("History of the Discovery of the Pontryagin Maximum Principle," Proc. Steklov Inst. Math. 304) remains unread by this vault (previously noted as paywalled/timed-out); it might independently describe — or omit, as his 2003 chapter does — the same naming-pressure episode, which would bear on this question from the other co-discoverer's side.
- Plail's 1998 German-language monograph *Die Entwicklung der optimalen Steuerungen* (Vandenhoeck & Ruprecht) is cited by both Pesch & Plail papers as the source their historical conclusions are "extracted from" — it may contain a fuller rendering of, or direct citation to, the Boltyanskii 1994 report than either journal article does, and is unread by this vault.

## Entity candidates
- E.J. McShane — person — American mathematician whose "needle variations" technique in the calculus of variations is the specific prior work Boltyanskii was required, per the naming-pressure settlement, to credit in his own 1958 publication ("he had to refer to McShane's needle variations") — the older, foundational figure this whole credit-asymmetry dispute measures Boltyanskii's own (differently-named) needle-variations contribution against; not yet an entity hub despite being load-bearing in the settlement's terms.
- A.I. Rozonoér (Rozonoér) — person — Soviet control engineer who, per the 2012 retelling of Boltyanskii's testimony, was specifically encouraged to publish a 1959 tripartite engineering paper on the maximum principle in order to spread Pontryagin's name as discoverer in engineering circles — a second, previously-unrecorded instance of deliberate credit-shaping around the same naming convention.
- Michael Plail — person — co-author with Pesch on both papers this capture reads; his unread 1998 German monograph is the stated underlying source for both authors' historical conclusions, including the naming-pressure account.