### Travaux de Zink

The diverse Dieudonné theories have as their common goal the classification of formal groups and $p$-divisible groups. The most recent theory is Zink’s theory of displays. A display over a ring R is a finitely generated projective module over the ring of Witt vectors, $W\left(R\right)$, equipped with additional structures. Zink has shown that using this notion, more concrete than those previously defined, one can obtain a good theory and prove an equivalence theorem in great generality. I will give an overview of...