29 citations · 67 across the 14 of their papers we have counts for
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math.RA2010★ 29 cited
Skew Category Algebras Associated with Partially Defined Dynamical Systems
Patrik Lundström, Johan Öinert
We introduce partially defined dynamical systems defined on a topological space. To each such system we associate a functor from a category to $\Top^{\op}$ and show that it…
math.RA2010★ 2 cited
Miyashita Action in Strongly Groupoid Graded Rings
Johan Öinert, Patrik Lundström
We determine the commutant of homogeneous subrings in strongly groupoid graded rings in terms of an action on the ring induced by the grading. Thereby we generalize a classical res…
math.RA2010★ 24 cited
The Ideal Intersection Property for Groupoid Graded Rings
Johan Öinert, Patrik Lundström
We show that if a groupoid graded ring has a certain nonzero ideal property, then the commutant of the center of the principal component of the ring has the ideal intersection prop…