Three-dimensional hyperbolic geometry as ...-adic Arakelov geometry.
Notes on the arithmetic of Fano threefolds
Some remarks on Koszul algebras and quantum groups
The category of quadratic algebras is endowed with a tensor structure. This allows us to construct a class of Hopf algebras studied recently under the name of quantum (semi) groups.
Sur le nombre des points rationnels de hauteur borné des variétés algébriques.
Points of bounded height on del Pezzo surfaces
On the cohomology of twistor flag spaces
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