7 citations · 12 across the 6 of their papers we have counts for
10 papers
Spin structures on Hantzsche-Wendt manifolds
Rafał Lutowski, Jerzy Popko, Andrzej Szczepański
Using a combinatorial description of Stiefel-Whitney classes of closed flat manifolds with diagonal holonomy representation, we show that no Hantzsche-Wendt manifold of dimension g…
Examples of non connective C*-algebras
Anna Gąsior, Andrzej Szczepański
We present an example of two infinite families of not connective groups. Both of them are generalized of the 3-dimensional Hantzsche-Wendt group.
Intersection forms of almost-flat 4-manifolds
Andrzej Szczepanski
We calculate intersection forms of all 4-dimensional almost-flat manifolds
A short note about diffuse Bieberbach groups
Anna Gąsior, Rafał Lutowski, Andrzej Szczepański
We consider low dimensional diffuse Bieberbach groups. In particular we classify diffuse Bieberbach groups up to dimension 6. We also answer a question from [S. Kionke, J. Raimbaul…
Classification of spin structures on 4-dimensional almost-flat manifolds
Rafał Lutowski, Nansen Petrosyan, Andrzej Szczepański
Almost-flat manifolds were defined by Gromov as a natural generalisation of flat manifolds and as such share many of their properties. Similarly to flat manifolds, it turns out tha…
Spin structures of flat manifolds of diagonal type
Rafał Lutowski, Nansen Petrosyan, Jerzy Popko +1
For each integer at least two, we construct non-spin closed oriented flat manifolds with holonomy group and with the property that all of their finite proper co…