This site contains online books and research papers on the subjects of categorical algebra, categorical logic, categorical geometry, lattice theory, universal algebra, algebraic geometry.

Seminaire de Geometrie Algebrique About this project &nbsp&nbsp&nbsp &nbsp&nbsp&nbsp Grothendieck with an infant 1 Revetements etales et groupe fondamental 2 Cohomologie locale des faisceaux coherents et theor mes de Lefschetz locaux et globaux 3-1 Schemas en groupes I: Proprietes generales des schemas en groupes 3-2 Schemas en groupes II: Groupes de type multiplicatif, et structure des schemas ...

Dedicated to increasing and disseminating mathematical knowledge The Hodge Conjecture In the twentieth century mathematicians discovered powerful ways to investigate the shapes of complicated objects. The basic idea is to ask to what extent we can approximate the shape of a given object by gluing together simple geometric building blocks of increasing dimension. This technique turned out to be ...