R.I.P. Alexander Grothendieck

The great mathematician Alexander Grothendieck died a few days ago. He was 86 years old.

Alexander Grothendieck ( ... 28 March 1928 – 13 November 2014) was a German-born French mathematician, and the leading figure in creating modern algebraic geometry. His research program vastly extended the scope of the field, incorporating major elements of commutative algebra, homological algebra, sheaf theory, and category theory into its foundations. This new perspective led to revolutionary advances across many areas of pure mathematics.