=ADD= =reftype= 14 =number= 03-12 =url= ftp://ftp.risc.uni-linz.ac.at/pub/techreports/2003/03-12.ps.gz =year= 2003 =month= 10 =author= Hemmecke; Ralf + Hillgarter; Erik + Landsmann; G{\"u}nter + Winkler; Franz =title= Symbolic Differential Elimination Theory for Symmetry Analysis =abstract= Differential problems are ubiquitous in mathematical modeling of physical and scientific problems. Algebraic analysis of differential systems can help in determining qualitative and quantitative properties of solutions of such systems. In this tutorial paper we describe several algebraic methods for investigating differential systems. =howpublished= Proceedings, 4th IMACS Symposium on Mathematical Modelling, February 5-7, 2003, Vienna University of Technology, Austria =sponsor= FWF SFB013/F1304 (Austrian Science Fundation)