Lattices are periodic arrangements of points in space that have
attracted the attention of mathematicians for over two centuries.
They have recently become an object of even greater interest due to
their remarkable applications in cryptography. In...
Birkhoff sections have been invented... by Poincaré in his work
on celestial mechanics. Birkhoff made an extensive use of this
concept in dynamical systems. Sometimes, one can find surfaces
transverse to the trajectories of a vector field in a 3...