Eine Charakterisierung der Homotopiekategorie der CW-Komplexe.
The Indecomposable Representations of the Dihedral 2-Groups.
The category of modules with good filtrations over a quasi-hereditary algebra has almost split sequences.
Diagonalisierungspaare. I.
Diagonalisierungspaare. II.
Finite Dimensional Hereditary Algebras of Wild Representation Type.
PBW-bases of quantum groups.
The Rational Invariants of the Tame Quivers.
Hall algebras and quantum groups.
The spectral radius of the Coxeter transformations for a generalized Cartan matrix.
The canonical algebras
Hall algebras
Perfect Elements in the Free Modular Lattices.
A Class of Balanced Non-Uniserial Rings.
A construction for quasi-hereditary algebras
Decomposition of Modules over Right Uniserial Rings.
QF-3 rings.
The dimension of a quasi-hereditary algebra
The multisegment duality and the preprojective algebras of type .
The number of complete exceptional sequences for a Dynkin algebra
The Dynkin algebras are the hereditary artin algebras of finite representation type. The paper determines the number of complete exceptional sequences for any Dynkin algebra. Since the complete exceptional sequences for a Dynkin algebra of Dynkin type Δ correspond bijectively to the maximal chains in the lattice of non-crossing partitions of type Δ, the calculations presented here may also be considered as a categorification of the corresponding result for non-crossing partitions.
Page 1 Next