Authors 
Title 
Status, Abstract 

Rudolf Berghammer 
Olshausenstr. 40, 24098 Kiel, Germany rub@informatik.unikiel.de 
Algebraic Visualization of Relations 
Computer Algebra in Scientific Computing, CASC 2007Lect. Notes in Comput. Sci. 4770, p. 5872 
Gunther Schmidt 
Universität der Bundeswehr München 85577 Neubiberg, Germany Gunther.Schmidt@UniBw.de 

Relations and graphs are widely used as modeling tools. For graphs, there exist highly elaborated graph drawing algorithms that help getting an impression on how the graph is structured. We concentrate here in an analogous way on visualizing relations represented as Boolean matrices as, for example, in the specific purpose Computer Algebra system RelView. This means rearranging the matrix appropriately, permuting rows and columns simultaneously or independently as required. In this way, many complex situations may successfully be handled in various application fields. We show how relation algebra and RelView can be combined to solve such tasks. 