Abstract
We express some basic properties of Deninger's conjectural dynamical system in terms of morphisms of topoi. Then we show that the current definition of the Weil-étale topos satisfies these properties. In particular, the flow, the closed orbits, the fixed points of the flow and the foliation in characteristic $p$ are well defined on the Weil-étale topos. This analogy extends to arithmetic schemes. Over a prime number $p$ and over the archimedean place of $\boldsymbol{Q}$, we define a morphism from a topos associated to Deninger's dynamical system to the Weil-étale topos. This morphism is compatible with the structure mentioned above.
Citation
Baptiste Morin. "Sur l'analogie entre le système dynamique de Deninger et le topos Weil-étale." Tohoku Math. J. (2) 63 (3) 329 - 361, 2011. https://doi.org/10.2748/tmj/1318338946
Information