91 citations · 338 across the 27 of their papers we have counts for
28 papers
Gorenstein-Projective Modules over the Ring of Dual Integers
Xiu-Hua Luo, Markus Schmidmeier
The ring of dual integers is the bounded polynomial ring $\mathbb Z[\eps]=\mathbb Z[T]/(T^2)$ with integer coefficients. We describe the (finitely generated) Gorenstein-projective…
Invariant Subspaces of Nilpotent Operators. Level, Mean, and Colevel: The Triangle
Claus Michael Ringel, Markus Schmidmeier
We consider the category of all pairs , where is a finite-dimensional vector space with a nilpotent operator with , and is a subspac…
Abelian p-groups with a fixed elementary subgroup or with a fixed elementary quotient
Justyna Kosakowska, Markus Schmidmeier, Martin Schreiner
In his 1934 paper, G.\ Birkhoff poses the problem of classifying pairs where is an abelian group and a subgroup, up to automorphisms of . In general, Bi…
A reflection equivalence for Gorenstein-projective quiver representations
Xiu-Hua Luo, Markus Schmidmeier
For a selfinjective algebra, and a finite quiver without oriented cycles, the algebra is a Gorenstein algebra and the category of Gorenstein-projective…
Hammocks to visualize the support of finitely presented functors
Markus Schmidmeier
Many properties of a module can be expressed in terms of the dimension of the vector space obtained by applying a finitely presented functor to that module. For example, the dimens…
The socle tableau as a dual version of the Littlewood-Richardson tableau
Justyna Kosakowska, Markus Schmidmeier
Like the LR-tableau, a socle tableau is given as a skew diagram with certain entries. Unlike in the LR-tableau, the entries in the socle tableau are weakly increasing in each row,…