3 papers
math.CT2018
Direct Limit closure of induced Quiver Representations
Rune Harder Bak
In 2004 and 2005 Enochs et al. characterized the flat and projective quiver-representations of left rooted quivers. The proofs can be understood as filtering the classes $Φ(\operat…
math.RA2018
Computations of atom spectra
Rune Harder Bak, Henrik Holm
This is a contribution to the theory of atoms in abelian categories recently developed in a series of papers by Kanda. We present a method that enables one to explicitly compute th…
math.CT2016
Dualizable and semi-flat objects in abstract module categories
Rune Harder Bak
In this paper, we define what it means for an object in an abstract module category to be dualizable and we give a homological description of the direct limit closure of the dualiz…