Bulletin of the American Mathematical Society 12(1), pages 91–94.
José Manuel Marco 2026-11-05
José Manuel Marco coauthored the regularity theory of the Livšic cohomological equation with Rafael de la Llave and Roberto Moriyón. The official publisher record verifies this exact name.[ref]
Their work connects equations arising in Anosov diffeomorphisms and Anosov flows with regularity of their solutions. Solvability alone leaves a geometric question: does a transfer function inherit the smooth structure required by the application?
Rafael de la Llave 2026-11-05
Rafael de la Llave studies dynamical systems. With José Manuel Marco and Roberto Moriyón, he developed regularity results for the Livšic cohomological equation in Anosov diffeomorphisms and Anosov flows.[ref]
Canonical perturbation theory of Anosov systems and regularity results for the Livsic cohomology equation by Rafael de la Llave and others (1986). Original publisher byline and subject
The question concerns how the smoothness of the input function controls a transfer function solving the equation. Such results are essential when translating hyperbolic dynamical information into smooth geometric information.
Roberto Moriyón 2026-11-05
Roberto Moriyón worked with Rafael de la Llave and José Manuel Marco on canonical perturbation methods and regularity for the Livšic cohomological equation.[ref]
In a hyperbolic setting, periodic trajectories impose compatibility conditions on the equation's data. Understanding when compatible data yield smooth transfer functions links dynamical systems, geometric rigidity and analysis.