57 citations · 255 across the 32 of their papers we have counts for
37 papers
Non-stable groups
Marius Dadarlat
In this article we discuss cohomological obstructions to two kinds of group stability. In the first part, we show that residually finite groups which arise as fundamental group…
Computing cohomology groups that classify bundles of strongly self-absorbing -algebras
Marius Dadarlat, James E. McClure, Ulrich Pennig
Locally trivial bundles of -algebras with fibre for a strongly self-absorbing -algebra over a finite CW-complex form a group th…
Bundles of strongly self-absorbing -algebras with a Clifford grading
Marius Dadarlat, Ulrich Pennig
We extend our previous results on generalized Dixmier-Douady theory to graded -algebras, as means for explicit computations of the invariants arising for bundles of ungraded $…
Quasi-representations of groups and two-homology
Marius Dadarlat
The Exel-Loring formula asserts that two topological invariants associated to a pair of almost commuting unitary matrices coincide. Such a pair can be viewed as a quasi-representat…
Obstructions to matricial stability of discrete groups and almost flat K-theory
Marius Dadarlat
A discrete countable group G is matricially stable if the finite dimensional approximate unitary representations of G are perturbable to genuine representations in the point-norm t…
Connective Bieberbach groups
Marius Dadarlat, Ellen Weld
We prove that a Bieberbach group with trivial center is not connective and use this property to show that a Bieberbach group is connective if and only if it is poly-Z.