Optimal mass transportation and Mather theory

Optimal stability and instability for near-linear Hamiltonians

Optimal stability and instability results for a class of nearly integrable Hamiltonian systems

Optimal transfers between unstable periodic orbits using invariant manifolds

Optimal transport and dynamics of expanding circle maps acting on measures

Orbit complexity, initial data sensitivity and weakly chaotic dynamical systems

Orbit counting with an isometric direction

Orbit equivalence and sofic approximation

Orbit equivalence and topological conjugacy of affine actions on compact abelian groups

Orbit equivalence for Cantor minimal Z^2-systems

Orbit equivalence for Cantor minimal Z^d-systems

Orbit equivalence, coinduced actions and free products

Orbit equivalent substitution dynamical systems and complexity

Orbit Spaces of Gradient Vector Fields

Orbit structure for groups of homeomorphisms of the circle

Orbit structure of interval exchange transformations with flip

Orbit theory, locally finite permutations and morse arithmetic

Orbit-counting for nilpotent group shifts

Orbit-counting in non-hyperbolic dynamical systems

Orbital linearization of smooth completely integrable vector fields