Sumários
Aula 13
9 Dezembro 2025, 10:00 • Marko Stosic
Littlewood-Richardson rule for the product of two Schur functions.
Presentation of students' mini-projects:
- Plethysm of symmetric functions.
Expansion of the plethysm of complete symmetric functions, and of the plethysm of complete symmetric functions and powers sums as linear combinations of Schur functions.
- Representations of permutation group S_n: Specht modules
Irreducible complex finite-dimensional representations of a symmetric group.
Classes of conjugation of a symmetric group S_n: isomorphism with the partitions of n.
Group ring C[S_n].
Definition and properties of Specht modules S^{\lambda}.
Aula 12
2 Dezembro 2025, 10:00 • Marko Stosic
Presentation of students mini-projects.
Robinson-Schensted-Knuth correspondence, and its properties.
Row insertion algorithm for semi-standard Young tableaux.
Bruhat order on symmetric group, and Schubert polynomials.
Divided difference operator on the ring of polynomials.
Aula 11
25 Novembro 2025, 10:00 • Marko Stosic
Representation theory of finite groups.
Character theory.
Particular case of symmetric group.