Diophantine geometry and arithmetic geometry

abc conjecture

Collaboration beta

How large can the sum c=a+b be compared with the product of the distinct primes dividing abc, apart from an arbitrarily small power loss?

cKεrad(abc)1+ε
Known results and sources
Three interlocking integer towers labeled only by geometric shape, with their prime supports converging toward an unresolved radical boundary.
A problem-first view of a+b=c: the sizes of three coprime integers are contrasted with the distinct-prime support of their product, with the inequality visibly unresolved.

Research problem

Exact mathematical statement

For pairwise coprime positive integers a, b, c with a+b=c, write

rad(abc)=pabcp.\operatorname{rad}(abc)=\prod_{p\mid abc}p.

The abc conjecture states that for every ε>0 there is a constant Kε such that

cKεrad(abc)1+ε.c \le K_ε\,\operatorname{rad}(abc)^{1+ε}.

The retained source explicitly says that it has not obtained a complete proof. Its elliptic-curve cusp-unit calculations and route proposals are source-reported research material, not an accepted proof of this statement.

Problem infographic

Problem at a glance

A landscape mathematical plate compares coprime triples a plus b equals c with the distinct-prime radical and marks the exponent-one boundary as an open question.
The abc conjecture asks whether c is bounded by an arbitrarily small power above rad(abc); the plate separates repeated prime powers from the radical and states that no complete proof is presented.

Current mathematical picture

Where work on abc conjecture stands

Recent proof claim under review

Selected route highlights from the mathematical source. This is not yet a complete mathematical inventory.

Useful failureTangent-unit lattice extrapolation

The revision reports that those tangent units span a sublattice of index 3^6=729, so their finite closure statements do not cover the full cusp-unit group. The source reports that distinct secant-unit products can have character components absent from the tangent orbit types, while the surviving cubic route runs from the full primitive Hesse-line cusp-unit lattice to multi-character additive/invariant extraction.

Route status · Narrowed route
Main reductionCurrent reduction

The surviving cubic route is the full primitive Hesse-line cusp-unit lattice followed by multi-character additive/invariant extraction.

Evidence posture · Source-reported route statement · dependencies incomplete
Priority open bridgeEnumerate and certify primitive Hesse-line units of bounded height in the complete principal cusp-divisor lattice.Task status · Ready to work on
Research-record correctionResearch-record correction

We corrected the cited passages. We updated the highlighted open task or route. The mathematical claims and their status did not change.

Reader-facing record corrected; mathematics unchanged

Work mapped so far

abc conjecture in numbers

6.7kretained lines of mathematical investigation6,701 in the current working snapshot
Argument development
5,836 · 87%
Explored or eliminated routes
110 · 2%
Computational analysis
321 · 5%
Open obligations
188 · 3%
Definitions and setup
246 · 4%
8selected mapped statements1routes investigated4open questions4contribution-ready tasks
How this is measured

This measures retained mathematical investigation, not proximity to a proof. Code, data, logs, repeated text, operational instructions, and generated presentation copy are excluded.

Argument map and routes

How the current approaches connect

Claims, reductions, open questions, active routes, and narrowed alternatives in one mathematical map.

Visible working map

Research route map

13 selected steps

Selected claims, active routes, useful failures, and open questions from the current research map. Arrows appear only for explicitly recorded relationships.

13 selected steps

Scroll horizontally to explore the route

Working route overview for abc conjectureA selected map of recorded claims, active routes, useful failures, open questions, and their explicit relationships. Search, filter, zoom, or pan within this page.Can c exceed the radical of abc by more than an arbitrarily small power? — Depends on missing premiseCan c exceed the radical ofabc by more than anarbitrarily…Current reduction — Depends on missing premiseCurrent reductionFull-lattice multi-character frontier — Depends on missing premiseFull-lattice multi-characterfrontierClosing target — Depends on missing premiseClosing targetHesse-line generation — Depends on missing premiseHesse-line generationPrimitive secant-unit example — Depends on missing premisePrimitive secant-unitexamplePrincipal cusp-divisor kernel — Depends on missing premisePrincipal cusp-divisorkernelTangent lattice is incomplete — Depends on missing premiseTangent lattice isincompleteTangent-unit lattice extrapolation — stoppedTangent-unit latticeextrapolationEnumerate and certify primitive Hesse-line units of bounded height in the complete principal cusp-divisor lattice. — OpenEnumerate and certifyprimitive Hesse-line unitsof…Build character projectors and determinant candidates that use several primitive units without collapsing to constant or coordinate content. — OpenBuild character projectorsand determinant candidatesthat…Convert a nondegenerate local extraction into the precise global radical-versus-height inequality required by abc. — OpenConvert a nondegeneratelocal extraction into theprecise…Exact abc inequality — OpenExact abc inequality
Working claimActive routeOpen, active, or blocked questionUseful failure

Working overview, not proof. The map shows selected recorded relationships; more nodes or edges do not establish correctness or completion.

Explored alternatives

Other routes

1 recorded
Narrowed routeTangent-unit lattice extrapolation

The revision reports that those tangent units span a sublattice of index 3^6=729, so their finite closure statements do not cover the full cusp-unit group. The source reports that distinct secant-unit products can have character components absent from the tangent orbit types, while the surviving cubic route runs from the full primitive Hesse-line cusp-unit lattice to multi-character additive/invariant extraction.

Route status · Narrowed route

More ways to contribute

Open questions

Additional prepared tasks for exploring this research frontier.

4 featured tasks
01
Enumerate and certify primitive Hesse-line units of bounded height in the complete principal cusp-divisor lattice.Suggested move: Compute bounded-height orbit representatives symbolically and verify their divisor vectors against the exact kernel description.
Ready to work on
02
Build character projectors and determinant candidates that use several primitive units without collapsing to constant or coordinate content.Suggested move: Test candidate character families for degeneracy, local valuation separation, and exact determinant factorization before any asymptotic claim.
Ready to work on
03
Exact abc inequality

Prove the exact abc radical inequality for all coprime positive triples a+b=c and every ε>0.

Suggested move: Resolve the exact source-reported obligation without treating it as an established negative result.
Ready to work on
04
Convert a nondegenerate local extraction into the precise global radical-versus-height inequality required by abc.Suggested move: Audit every auxiliary height, discriminant, exceptional-set, and coefficient term in the local-to-global passage.
Ready to work on

Sourced mathematical context

The known mathematical landscape

Context collected Aug 14, 2026
Current statusRecent proof claim under review

The integer abc conjecture is not recorded here as solved. Mochizuki's official project pages continue to present IUT and its claimed abc consequence; Scholze and Stix identify a central gap and explain why they regard abc as still a conjecture. Project LANA's 2026 institutional posture suspends judgment while specialists examine the disagreement.

[1][2][3]
External progress

What the literature has established

Selected external milestones in reverse chronological order, with their evidence posture.

  1. Authoritative summaryZEN University's Project LANA describes a neutral institutional effort to understand IUT and explicitly suspends judgment on whether a proof has been obtained.[3]
  2. PreprintA Lean formalization establishes the polynomial Mason–Stothers theorem, a classical analogue, without formalizing or proving the integer abc conjecture.[4]
  3. Authoritative summaryMochizuki's official project page presents the published IUT series and maintains the claimed Diophantine consequences; publication alone is not treated as independent acceptance.[2]
  4. PreprintScholze and Stix published a detailed account of the gap they identify in the IUT argument and why they do not regard it as a proof of abc.[1]
4 cited sources2 related results or reductionsReferences

Mathematical neighborhood

Related results and reusable starting points

Current focusabc conjecture
Related problemMason–Stothers theorem

The Mason–Stothers theorem is often called the polynomial abc theorem, but its proof does not imply the integer conjecture.

[4]
Logical consequenceIUT claimed implication to abc

Inter-universal Teichmüller theory is claimed by its author to imply abc; that implication is precisely part of the unresolved proof dispute and is not accepted here as established.

[2][1]

Formal and computational footholds

Existing statements, libraries, computations, and datasets that can shorten the next serious attempt.

  • formal proof · source linked; not reproduced by ProofAtlasMason–Stothers theorem in Lean

    A checked formal proof is reported for the polynomial analogue only; it is not a formal statement or proof of integer abc.

    [4]

Formalization opportunities

Lean work can make these reusable foundations precise without being presented as a proof of the core problem.

  • Formalization targetA reviewed Lean statement aligned exactly with the integer abc quantifiers, radical, coprimality assumptions, and constant dependence.
  • Formalization targetFormal arithmetic-geometry infrastructure for the selected proof route and a checked bridge from every intermediate inequality to the integer statement.
  • Formalization targetIndependent mathematical resolution of the disputed IUT step before any formal encoding could inherit proof authority.

Research-record corrections

What changed in the research record

These notes describe corrections to cited passages, highlighted tasks, or connections between claims. The mathematical claims and their status did not change.

Research-record correctionWe corrected the cited passages. We updated the highlighted open task or route. The mathematical claims and their status did not change.

Corrected the research recordCorrection note

Correction details
Research-record correctionWe corrected the cited passages. The mathematical claims and their status did not change.

Corrected the research recordCorrection note

Cited passages corrected
Research-record correctionWe corrected the cited passages. We removed a duplicate or outdated task or route step. We updated the highlighted open task or route. The mathematical claims and their status did not change.

Corrected the research recordCorrection note

Correction details

The initial argument structure appears separately. Uploads, model runs, and presentation changes do not count as mathematical updates.

Detailed research inventory

Claims, milestones, and routes in the current map

This view highlights the mathematical statements most useful for following the current route.

5 standing statements3 proposed statements4 open questions1 narrowed routes
Statements by mathematical role8 selected mapped statements
  • theorem candidate1 of 81
  • reduction2 of 82
  • lemma4 of 84
  • negative result1 of 81
Selected mathematical clusters1 mathematical clusters
Current research mapThe conjecture, retained reductions, explored limitations, and open questions represented in this overview.21 displayed rows · 1 route included
  • retained route statementCan c exceed the radical of abc by more than an arbitrarily small power?
  • retained route statementCurrent reductionintermediate
  • retained route statementClosing targetintermediate
  • retained route statementPrincipal cusp-divisor kernelintermediate
  • retained route statementHesse-line generationintermediate
  • retained route statementTangent lattice is incompleteintermediate
  • retained route statementPrimitive secant-unit exampleintermediate
  • retained route statementFull-lattice multi-character frontierintermediate
  • Recorded relationshipThe source reports this as a route toward the conjecture; missing or unaudited premises remain and the reduction does not itself prove the target.supports · reported by source
  • Recorded relationshipThis source-reported claim supports the retained route only within its stated, unaudited scope.supports · reported by source
  • Recorded relationshipThis source-reported claim supports the retained route only within its stated, unaudited scope.supports · reported by source
  • Recorded relationshipThis source-reported claim supports the retained route only within its stated, unaudited scope.supports · reported by source
  • Recorded relationshipThis source-reported claim supports the retained route only within its stated, unaudited scope.supports · reported by source
  • Recorded relationshipThis source-reported claim supports the retained route only within its stated, unaudited scope.supports · reported by source
  • DerivationThe source reports that completing the closing target would advance the reduction to the main conjecture; this remains an informal route, not a verified derivation.proposed
  • Useful failureTangent-unit lattice extrapolationreported failure
  • Research targetEnumerate and certify primitive Hesse-line units of bounded height in the complete principal cusp-divisor lattice.open
  • Research targetBuild character projectors and determinant candidates that use several primitive units without collapsing to constant or coordinate content.open
  • Research targetConvert a nondegenerate local extraction into the precise global radical-versus-height inequality required by abc.open
  • Research targetExact abc inequalityopen
  • Narrowed routeTangent-unit lattice extrapolationThe revision reports that those tangent units span a sublattice of index 3^6=729, so their finite closure statements do not cover the full cusp-unit group. The source reports that distinct secant-unit products can have character components absent from the tangent orbit types, while the surviving cubic route runs from the full primitive Hesse-line cusp-unit lattice to multi-character additive/invariant extraction.
How to interpret these counts

A statement may be a lemma, conditional reduction, special case, documented limitation, or open target. These counts describe the work's structure; they do not estimate distance to a proof.

Research outlook

Conditions that would advance the current route

Priority open bridgeEnumerate and certify primitive Hesse-line units of bounded height in the complete principal cusp-divisor lattice.

1 approach has already been tested and narrowed. The task above is the current priority within the larger open route.

Evidence needed nextConcrete conditions for progress

A result can change the outlook by closing the bridge, narrowing its scope, or showing that the route cannot work.

  • Supply a complete argument with every imported premise identified.
  • Survive an independent attempt to falsify the proposed step.

Continue the mathematics

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Prepared starting pointEnumerate and certify primitive Hesse-line units of bounded height in the complete principal cusp-divisor lattice.

abc conjecture · ready to start

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Research contextPrepared context for any AI agent

How large can the sum c=a+b be compared with the product of the distinct primes dividing abc, apart from an arbitrarily small power loss?

  • Exact question and boundaries
  • Current routes and known obstacles
  • What a useful result should report
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Sources and references4 cited works · next context review by Nov 14, 2026

The mathematical context was checked on Aug 14, 2026. Status can be refreshed sooner after a material result or claim.

  1. 1
    Why abc is still a conjecturepreprint · Peter Scholze, Jakob Stix · University of Bonn · 2018 · accessed Aug 14, 2026
  2. 2
    Inter-universal Teichmüller Theory project pageauthoritative webpage · Shinichi Mochizuki · Research Institute for Mathematical Sciences, Kyoto University · 2021 · accessed Aug 14, 2026
  3. 3
    Project LANA post-event reportauthoritative webpage · ZEN University · 2026 · accessed Aug 14, 2026
  4. 4
    A Lean formalization of the Mason–Stothers theoremformalization · Jesse Michael Han, Florence Sterck, Jeroen Sijsling · arXiv · 2024 · ARXIV 2408.15180 · accessed Aug 14, 2026

Important qualifications

  • This record distinguishes publication of the IUT papers and continuing proof claims from authoritative acceptance of a proof of the integer abc conjecture.
  • Scholze and Stix's report is a mathematical critique; Project LANA's institutional posture suspends judgment and does not itself resolve the dispute.
  • The formalized Mason–Stothers theorem is the polynomial analogue, not the integer abc conjecture.
  • No packet URL or attachment was fetched, executed, rendered, or treated as independent status evidence.

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