Weighted horospherical p-Minkowski inequalities

Let K,LHn+1K,L\subset\mathbb H^{n+1} be smooth origin-symmetric, uniformly h-convex bounded domains, with n1n\geq1. Let φK,φL\varphi_K,\varphi_L be their horospherical support functions, let rr be the hyperbolic distance from the origin, and let u~\tilde u denote the support quantity appearing in the weighted integrand. Define S\mathcal S as the normalized weighted volume functional. Weighted horospherical pp-Minkowski conjecture. For p>0p>0,

KφLpcoshr(coshru~)pdμKcoshrdμωnSn(K)S2(K)+1[(S(L)+S2(L)+1S(K)+S2(K)+1)p1],\int_{\partial K}\varphi_L^p\cosh r(\cosh r-\tilde u)^p\,d\mu-\int_{\partial K}\cosh r\,d\mu\\ \geq \omega_n\mathcal S^n(K)\sqrt{\mathcal S^2(K)+1}\left[\left(\frac{\mathcal S(L)+\sqrt{\mathcal S^2(L)+1}}{\mathcal S(K)+\sqrt{\mathcal S^2(K)+1}}\right)^p-1\right],

and for p<0p<0 the inequality is reversed. In both cases equality should hold exactly when K=LK=L or K,LK,L are geodesic balls centered at the origin. This is the weighted infinitesimal counterpart of the weighted horospherical Brunn–Minkowski conjecture.

Sources & referencesView supporting material

Primary source

Haizhong Li and Botong Xu, “Hyperbolic p-sum and Horospherical p-Brunn-Minkowski theory in hyperbolic space”, arXiv:2211.06875 (2022).

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