2 citations · 3 across the 3 of their papers we have counts for
3 papers
math.CO2018
Equivariant Algebraic Morse Theory
Ralf Donau
In this paper we develop Algebraic Morse Theory for the case where a group acts on a free chain complex. Algebraic Morse Theory is an adaption of Discrete Morse Theory to free chai…
math.AT2012★ 2 cited
A nice acyclic matching on the nerve of the partition lattice
Ralf Donau
The author has already proven that the space is homotopy equivalent to a wedge of spheres of dimension for all natural numbers and all subgroups $G\subse…
math.AT2012★ 1 cited
Quotients of the topology of the partition lattice which are not homotopy equivalent to wedges of spheres
Ralf Donau
The reader of doi:10.1016/j.topol.2010.08.006 might conjecture that Δ(\barΠ_n)/G is homotopy equivalent to a wedge of spheres for any n>=3 and any subgroup G<S_n. We disprove this…