C. Nassau

collaborators

3 papers

math.AT2019

Computing a minimal resolution over the Steenrod algebra

Christian Nassau

We describe an algorithm that allows to compute a minimal resolution of the Steenrod algebra. The algorithm has built-in knowledge about vanishing lines for the cohomology of sub H…

math.AT2019

Steenrod operations and A-module extensions

Robert Bruner, Christian Nassau, Sean Tilson

Explicit extensions representing cocycles $x \in E x t_{A}^{s, t} (F_{2}, F_{2})$ are useful in calculating Steenrod operations $Sq^i : Ext_{A}^{s,t}(F_2,F_2) \longrightarrow Ext_{A}^{s+i,2…

math.AG2017

The Bruhat decomposition of real Grassmann manifolds

Christian Nassau

We study the Grassmann manifold $G_{k}$ of all $k$ -dimensional subspaces of $R^{n}$ . The Cartan embedding $G_{k} \subset O (n)$ realizes $G_{k}$ as a subspace of $Sl_n({\mathbb R})…