Schubert calculus

Meaning

Noun

• A branch of algebraic geometry concerned with solving certain types of counting problem in projective geometry; a symbolic calculus used to represent and solve such problems;
  the enumerative geometry of linear subspaces; the study of analogous questions in generalised cohomology theories.

Origin

• Named after German mathematician Hermann Schubert (1848–1911), who introduced the theory in the nineteenth century.