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From the 1 of 6 linked papers with an AI index.

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6 papers

math.DG2026

Stability of local Riemannian Ricci curvature lower bounds

Luigi Ambrosio, Francesco Nobili, Federico Renzi +1

The paper proves that lower bounds on Ricci curvature for Riemannian manifolds remain stable under Gromov‑Hausdorff convergence, using a local analysis of weak gradients and heat‑f…

math.MG2026

Mosco-convergence of Cheeger energies on varying spaces satisfying curvature dimension conditions

Francesco Nobili, Federico Renzi, Federico Vitillaro

We study the Mosco-convergence of Cheeger energies on Gromov-Hausdorff converging spaces satisfying different types of curvature dimension conditions. The case of functions of boun…

math.AP2025

Generalized existence of extremizers for the sharp -Sobolev inequality on Riemannian manifolds with nonnegative curvature

Francesco Nobili, Ivan Yuri Violo

We study the generalized existence of extremizers for the sharp -Sobolev inequality on noncompact Riemannian manifolds in connection with nonnegative curvature and Euclidean vol…

math.AP2025

Fine Pólya-Szegő rearrangement inequalities in metric spaces and applications

Francesco Nobili, Ivan Yuri Violo

We study fine Pólya-Szegő rearrangement inequalities into weighted intervals for Sobolev functions and functions of bounded variation defined on metric measure spaces supporting…

math.MG2025

Comparison estimates on nonsmooth spaces with integrable Ricci lower bounds via localization

Emanuele Caputo, Francesco Nobili, Tommaso Rossi

We study comparison estimates on metric measure spaces admitting a synthetic variable Ricci curvature lower bound. We obtain geometric and functional inequalities assuming that the…

math.AP2025

An overview of the stability of Sobolev inequalities on Riemannian manifolds with Ricci lower bounds

Francesco Nobili

We review recent results regarding the problem of the stability of Sobolev inequalities on Riemannian manifolds with Ricci curvature lower bounds. We shall describe techniques and…