Grothendieck

Alexander Grothendieck (1928–2014) was a German-born French mathematician who revolutionized algebraic geometry and modern mathematics.

His work on schemes, topos theory, and cohomology reshaped how mathematicians think about geometric and algebraic structures.

Grothendieck later renounced academic life, withdrawing into seclusion and writing extensively on ecology and spirituality.

His name now marks foundational concepts: Grothendieck group, Grothendieck topology.