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Real and complex analysis

Turning complicated boundaries into circles

OpenAI research collection · 2 manuscripts · Source checked 2026-10-19

The idea in plain language

These papers study whether a region in the extended complex plane can be reshaped, preserving local angles, so its missing pieces become round disks or points. The family claims the general existence result and a rigidity result under additional boundary conditions.

Why it matters

Simpler geometric representations can make complicated analytic questions easier to study. The rigidity claim has conditions beyond the existence theorem.

Read the technical source claim

Resolves the existence part of Koebe's circle-domain conjecture: every domain in the Riemann sphere is conformally equivalent to a domain whose complementary components are round disks or points. It also proves that circle domains with conformally removable boundary are rigid, meaning every conformal equivalence to another circle domain is Möbius, establishing this direction of the He–Schramm conjecture.

Read the manuscripts

Short excerpts below come from OpenAI's abstracts. The full abstract and original PDF preserve the paper's precise scope.

MANUSCRIPT 01

Removable Boundaries and Rigidity of Circle Domains

We prove that a circle domain with conformally removable boundary is conformally rigid, with no restriction on the number of complementary components. This establishes the removability-to-rigidity direction of the He–Schramm Conjecture.

This exact PDF is not listed in the imported formalization catalogue. Family scope notes may contain further information.

MANUSCRIPT 02

Koebe's Circle-Domain Conjecture

We prove that every domain in the Riemann sphere is conformally equivalent to a circle domain, resolving Koebe's circle-domain conjecture positively.

This exact PDF is not listed in the imported formalization catalogue. Family scope notes may contain further information.

One signal in the wider AGI picture

New mathematical reasoning could help AI tackle harder scientific and computational problems. How reliably these skills transfer beyond mathematics will determine how much they contribute to general intelligence.

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