differential-equations / Inverse problems; elliptic PDE on manifolds

The Lee-Uhlmann conjecture: smooth anisotropic Calderon uniqueness in dimension at least three, from one boundary patch

Theorem 1.1: for n≥3n\ge3, compact connected smooth MM with smooth boundary and any nonempty proper relatively open Γ⊂∂M\Gamma\subset\partial M, if smooth metrics satisfy Λg1,Γ=Λg2,Γ\Lambda_{g_1,\Gamma}=\Lambda_{g_2,\Gamma} (energy form with input and output on Γ\Gamma), then g2=Φ∗g1g_2=\Phi^*g_1 for a smooth diffeomorphism with Φ∣Γ=Id\Phi|_\Gamma=\mathrm{Id}. Corollaries: full-boundary uniqueness, and uniqueness of smooth positive scalar conductivities on smooth Euclidean domains from one same-patch measurement. The October 5 companion adds a smooth unitary connection on a trivial Hermitian rank-two bundle, determined up to gauge fixed on the patch. Not shown: dimension two, nonsmooth metrics, stability estimates, or reconstruction.

55Significance / 100
1Frontier events
0Verification tasks
0Recorded attempts

Temporal state

Current frontier

No reconciled state yet.

Append-only history

Frontier timeline

differential-equationsSep 24, 2026Significance 55/100Registry: unreviewed

The Lee-Uhlmann conjecture: smooth anisotropic Calderon uniqueness in dimension at least three, from one boundary patch

Prior state unknown→proved

Theorem 1.1: for n≥3n\ge3, compact connected smooth MM with smooth boundary and any nonempty proper relatively open Γ⊂∂M\Gamma\subset\partial M, if smooth metrics satisfy Λg1,Γ=Λg2,Γ\Lambda_{g_1,\Gamma}=\Lambda_{g_2,\Gamma} (energy form with input and output on Γ\Gamma), then g2=Φ∗g1g_2=\Phi^*g_1 for a smooth diffeomorphism with Φ∣Γ=Id\Phi|_\Gamma=\mathrm{Id}. Corollaries: full-boundary uniqueness, and uniqueness of smooth positive sc…

SourceReplayReproducedFormal proofStatement auditExternal checkExpert reviewPeer review

Research memory

Claims and attempts

Scoped claims

Source authenticated

Theorem 1.1: for n≥3n\ge3, compact connected smooth MM with smooth boundary and any nonempty proper relatively open Γ⊂∂M\Gamma\subset\partial M, if smooth metrics satisfy Λg1,Γ=Λg2,Γ\Lambda_{g_1,\Gamma}=\Lambda_{g_2,\Gamma} (energy form with input and output on Γ\Gamma), then g2=Φ∗g1g_2=\Phi^*g_1 for a smooth diffeomorphism with Φ∣Γ=Id\Phi|_\Gamma=\mathrm{Id}. Corollaries: full-boundary uniqueness, and uniqueness of smooth positive scalar conductivities on smooth Euclidean domains from one same-patch measurement. The October 5 companion adds a smooth unitary connection on a trivial Hermitian rank-two bundle, determined up to gauge fixed on the patch. Not shown: dimension two, nonsmooth metrics, stability estimates, or reconstruction.

Theorem 1.1: for n≥3n\ge3, compact connected smooth MM with smooth boundary and any nonempty proper relatively open Γ⊂∂M\Gamma\subset\partial M, if smooth metrics satisfy Λg1,Γ=Λg2,Γ\Lambda_{g_1,\Gamma}=\Lambda_{g_2,\Gamma} (energy form with input and output on Γ\Gamma), then g2=Φ∗g1g_2=\Phi^*g_1 for a smooth diffeomorphism with Φ∣Γ=Id\Phi|_\Gamma=\mathrm{Id}. Corollaries: full-boundary uniqueness, and uniqueness of smooth positive scalar conductivities on smooth Euclidean domains from one same-patch measurement. The October 5 companion adds a smooth unitary connection on a trivial Hermitian rank-two bundle, determined up to gauge fixed on the patch. Not shown: dimension two, nonsmooth metrics, stability estimates, or reconstruction.

Recorded attempts

Evidence graph

Connected research record