arXiv subjects

Miaohua Jiang

Publications and source records attributed to Miaohua Jiang.

3 recordsLinked to original sources

arXiv2026

Behavior of the SRB Entropy Functional in Families of Hyperbolic Attractors and Expanding Maps

We review the current state of the study of the SRB entropy functional over open components of families of uniformly hyperbolic systems, including Anosov systems, hyperbolic attractors, expanding maps, and Markov transformations. We address problems concerning the functional's infimum, supremum, and local extrema; the gradient flow induced by the functional; and the functional's behavior near the boundary of open components.

math.DS↗

arXiv2025

Lipschitz Continuity and Formulas of the Gradient Vector of the SRB Entropy Functional

The Sobolev embedding theorem implies that the SRB entropy functional is also differentiable in the family of Anosov diffeomorphisms equipped with a suitable Hilbert manifold structure. The same holds true for the SRB entropy functional over the family of smooth expanding maps on a closed Riemannian manifold. This implication leads to the local existence of the gradient flow of the SRB entropy and an explicit formula for the gradient vector of the entropy functional via the linear response of the SRB measure.

math.DS↗

arXiv2023

Gradient Flow of the Sinai-Ruelle-Bowen Entropy

We study both the local and global existence of a gradient flow of the Sinai-Ruelle-Bowen entropy functional on a Hilbert manifold of expanding maps of a circle equipped with a Sobolev norm in the tangent space of the manifold. We show that, under a slightly modified metric, starting from any initial value, every trajectory of the gradient flow converges to the map with a constant expanding rate where the entropy attains the maximal value. In a simple case, we obtain an explicit formula for the flow's ordinary differential equation representation. This gradient flow has a close connection to a nonlinear partial differential equation: a gradient-dependent diffusion equation.

math-ph↗