Kontsevich–Zagier conjecture

Every equality between convergent periods follows from the standard formal relations for periods: linearity of integration, additivity with respect to domains, and algebraic changes of variables. More precisely, if P=∫Df(x1,…,xn) dx1⋯dxnP=\int_{D}f(x_1,\ldots,x_n)\,dx_1\cdots dx_n and Q=∫Eg(y1,…,ym) dy1⋯dymQ=\int_{E}g(y_1,\ldots,y_m)\,dy_1\cdots dy_m are convergent integrals of rational functions with coefficients in Q\mathbb{Q} over domains D⊆RnD\subseteq\mathbb{R}^n and E⊆RmE\subseteq\mathbb{R}^m defined by polynomial inequalities with coefficients in Q\mathbb{Q}, and if P=QP=Q as complex numbers, then this equality is derivable from those formal relations.

References

Progress summary

Refreshed
Claimed progress

A new technical framework strengthens work around the conjecture, but no source reports a proof or disproof.

The Kontsevich–Zagier conjecture predicts that equalities between periods follow from the standard formal rules for periods. The general conjecture remains unsettled; the latest work extends machinery relevant to it without claiming a complete proof.

Known results

  • Huber and Wüstholz proved the conjecture for classical periods of 11-motives over Q\mathbb{Q}; a 2025 preprint also develops related pp-adic results at depths 11 and 22.

September 2026 framework

On September 8, 2026, the article Kontsevich-Zagier conjecture for Hensel-minimal fields with sections reported a new framework for motivic integration over Hensel-minimal fields and proved compatibility with the Cluckers–Loeser integral. This is claimed progress on supporting machinery, not a resolution of the conjecture.

Current status (as of September 2026): The conjecture is open; substantial special-case and framework results are known, but no general proof or counterexample was found.

Sources

Solutions 0

No solutions have been posted yet.