Autour de la cohomologie de Bott-Chern

Autour de la conjecture de Tate `a coefficients Z_l pour les vari'et'es sur les corps finis

Ax-Kochen-Er{š}ov Theorems for $p$-adic integrals and motivic integration

Azumaya noncommutative geometry and D-branes - an origin of the master nature of D-branes

Azumaya structure on D-branes and deformations and resolutions of a conifold revisited: Klebanov-Strassler-Witten vs. Polchinski-Grothendieck

Azumaya structure on D-branes and resolution of ADE orbifold singularities revisited: Douglas-Moore vs. Polchinski-Grothendieck

Azumaya-type noncommutative spaces and morphisms therefrom: Polchinski's D-branes in string theory from Grothendieck's viewpoint

A^1-homotopy groups, excision, and solvable quotients

A_{infinity}-structures, Brill-Noether loci and the Fourier-Mukai transform

A_{n-1} singularities and nKdV hierarchies