activity
20022026
most citedInfinitely many periodic orbits of exact magnetic flows on surfaces for almost every subcritical energy level

33 citations · 144 across the 22 of their papers we have counts for

collaborators

33 papers

math.SG2026

Periodic Magnetic Geodesics with Every Low Energy: Existence and Localization

Valerio Assenza, Gabriele Benedetti, Leonardo Macarini

Let be a Riemannian manifold equipped with a non-identically zero magnetic field represented by a closed -form . We allow to be non-compact and do not assume that…

math.SG2026

Multiplicity of closed Reeb orbits on contact manifolds with periodic equivariant symplectic homology

Miguel Abreu, Leonardo Macarini

We consider closed contact manifolds with periodic positive equivariant symplectic homology. This is a very large class of contact manifolds and, to the best of our knowled…

math.SG2026

Contact flexibility and rigidity for toric Gorenstein prequantizations and Ehrhart theory of toric diagrams

Miguel Abreu, Leonardo Macarini, António Rocha-Neves

Gorenstein toric contact manifolds are good toric contact manifolds with zero first Chern class that are completely determined by certain integral convex polytopes called toric dia…

math.SG2024

Periodic orbits of non-degenerate lacunary contact forms on prequantization bundles

Miguel Abreu, Leonardo Macarini

A non-degenerate contact form is lacunary if the indexes of every contractible periodic Reeb orbit have the same parity. To the best of our knowledge, every contact form with finit…

math.SG2022★ 1 cited

Symmetric periodic Reeb orbits on the sphere

Miguel Abreu, Hui Liu, Leonardo Macarini

A long standing conjecture in Hamiltonian Dynamics states that every contact form on the standard contact sphere has at least simple periodic Reeb orbits. In this…

math.SG2022

Contact invariants of Q-Gorenstein toric contact manifolds, the Ehrhart polynomial and Chen-Ruan cohomology

Miguel Abreu, Leonardo Macarini, Miguel Moreira

Q-Gorenstein toric contact manifolds provide an interesting class of examples of contact manifolds with torsion first Chern class. They are completely determined by certain rationa…