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On Postnikov-Shapiro Algebras and their generalizations
Stockholm University, Faculty of Science, Department of Mathematics.
(English)Manuscript (preprint) (Other academic)
Abstract [en]

A.Postnikov and B.Shapiro introduced a class of commutative algebras which enumerate forests and trees of graphs. Our main result is that the algebra counting forests depends only on graphical matroid and converse.

Also we generalize algebras for a hypergraph. For this, we define spanning forests and trees of a hypergraph and the corresponding "hypergraphical" matroid.

National Category
Discrete Mathematics
URN: urn:nbn:se:su:diva-132531OAI: diva2:952673
Available from: 2016-08-15 Created: 2016-08-15 Last updated: 2016-08-28
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