Publications - Published papers

Please find below publications of our group. Currently, we list 508 papers. Some of the publications are in collaboration with the group of Sonja Prohaska and are also listed in the publication list for her individual group. Access to published papers (access) is restricted to our local network and chosen collaborators. If you have problems accessing electronic information, please let us know:

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A Prime Factor Theorem for a Generalized Direct Product

Wilfried Imrich, Peter F. Stadler


PREPRINT 05-010: [ PDF ]  [ PS ]


Discussiones Math. Graph Th. 26: 135-140 (2006)


We introduce the concept of neighborhood systems as a generalization of directed, reflexive graphs and show that the prime factorization of neighborhood systems with respect to the the direct product is unique under the condition that they satisfy an appropriate notion of thinness.


products, set systems, prime factor theorem


AMS Subject Classification (2000): 05C20, 05C65, 05C70