Gardner–Zvavitch conjecture for even log-concave measures

Let ν\nu be an even log-concave measure on Rn\mathbb{R}^{n}. For origin-symmetric convex bodies K0,K1RnK_{0},K_{1}\subseteq\mathbb{R}^{n} and t[0,1]t\in[0,1], define

(1t)K0+tK1={(1t)x0+tx1:x0K0, x1K1}.(1-t)K_{0}+tK_{1}=\{(1-t)x_{0}+tx_{1}:x_{0}\in K_{0},\ x_{1}\in K_{1}\}.

The measure ν\nu is log-concave when it has a density of the form dν/dx=eVd\nu/dx=e^{-V} with VV convex. Gardner–Zvavitch conjecture. For every such ν\nu, K0K_{0}, K1K_{1}, and tt, one has

ν((1t)K0+tK1)1n(1t)ν(K0)1n+tν(K1)1n.\nu\left((1-t)K_{0}+tK_{1}\right)^{\frac{1}{n}}\geq(1-t)\nu(K_{0})^{\frac{1}{n}}+t\nu(K_{1})^{\frac{1}{n}}.

This conjecture extends the dimensional Brunn–Minkowski inequality from Gaussian measure to all even log-concave measures. The Gaussian case was conjectured by Gardner and Zvavitch and was proved by Eskenazis and Moschidis; the general even log-concave case remains open.

Sources & referencesView supporting material

Primary source

Gautam Aishwarya and Dongbin Li, “Entropic and functional forms of the dimensional Brunn–Minkowski inequality in Gauss space”, arXiv:2504.03114 (2026).

Additional references

2 papers in this index state this conjecture (2020–2025). The statement above is taken from the most recent of them; the others are arXiv:2004.09737.

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.