Generalized Jacobi matrices: definition, properties, relations

• Datum: 5. 5. 2016
• Čas: 14:00 - 15:30
• Adresa:
  Sokolovská 83, Praha
• Místnost: K3
• Přednášející: Hnětynková Iveta

Abstract: Jacobi matrices, i.e. symmetric tridiagonal matrices with positive subdiagonal entries, represent thoroughly studied objects connected to various mathematical problems. In this presentation, we introduce and study wedge-shaped matrices that can be viewed as a generalization of Jacobi matrices. The definition is motivated by the structure of output matrices in band generalizations of particular Krylov subspace methods.