Schubert calculus

Meanings

1. 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;
2. 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; (by generalisation) the enumerative geometry of linear subspaces; the study of analogous questions in generalised cohomology theories.
3. the enumerative geometry of linear subspaces; the study of analogous questions in generalised cohomology theories.

Etymology

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