Anisotropic curvature flow convergence conjecture

Let ϕ\phi be a smooth, strictly convex norm on Rn+1\mathbf{R}^{n+1}, with Wulff shape Wϕ={xRn+1:ϕ(x)=1}\mathcal{W}^\phi=\{x\in\mathbf{R}^{n+1}:\phi^*(x)=1\}. Let X0:MRn+1X_0:M\to\mathbf{R}^{n+1} be a closed strictly convex hypersurface, let α>0\alpha>0, and let k{1,,n}k\in\{1,\ldots,n\}. Consider the anisotropic flow

Xt(x,t)=(μϕ(t)Ekϕ(x,t)α/k)νϕ(x,t),X(,0)=X0,\frac{\partial X}{\partial t}(x,t)=\bigl(\mu^\phi(t)-E_k^\phi(x,t)^{\alpha/k}\bigr)\nu^\phi(x,t),\qquad X(\cdot,0)=X_0,

where νϕ\nu^\phi is the outward anisotropic normal and μϕ(t)\mu^\phi(t) is chosen as in the source. Anisotropic curvature flow convergence conjecture. Suppose k{2,,n1}k\in\{2,\ldots,n-1\}. The flow has a smooth strictly convex solution Ωt\partial\Omega_t defined for all t0t\geq0, and Ωt\partial\Omega_t smoothly converges to a scaled and translated Wulff shape of ϕ\phi as tt\to\infty. The cases k=1k=1 and k=nk=n are noted in the source as provable by other techniques; the conjectural range concerns the intermediate anisotropic curvature flows.

Sources & referencesView supporting material

Primary source

Mario Santilli, “Anisotropic curvature measures and uniqueness of convex bodies”, arXiv:2108.01476 (2022).

Additional references

2 papers in this index state this conjecture (2017–2021). The statement above is taken from the most recent of them; the others are arXiv:1708.03982.

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