Tropical geometry: maximum and algebraic geometry

Tropical geometry, an educational field in full swing since the 1980s, radically transforms the traditional approach to algebraic geometry. By replacing classical operations with equivalents based on maximum and addition, this new form of algebra paves the way for a more intuitive and combinatorial understanding of complex geometric structures. It has become a powerful tool … Read more

The theory of motifs: unified cohomology

Contemporary research in mathematics is engaged in unveiling the deepest foundations that unite arithmetic, geometry, and topology. At the heart of this quest, motif theory stands out as an ambitious answer, aiming to decipher a universal language behind the diversity of cohomological invariants arising from algebraic varieties. This perspective, sketched by Grothendieck in the mid-1960s, … Read more

Algebraic geometry: varieties and schemes

Algebraic geometry imposes itself as a fundamental pillar of modern mathematics, linking the study of polynomial equations to the deep geometric structure of their solution sets. It transcends pure analysis to offer a powerful language capable of addressing very abstract spaces from the perspective of topology, algebra, and geometry. Understanding algebraic varieties and schemes, which … Read more