Menke, Rainer2004-12-072004-12-0719971998-11-06http://hdl.handle.net/2003/531910.17877/DE290R-15290Due to an approximation error the schema theorem implies a wrong estimate for the frequency of instances of a schema. In this article an example is given for which the schema theorem gives a wrong estimate. Based on a modeling which allows a mathematical analysis of genetic algorithms, the schema theorem is revised and a corrected estimate is shown.enUniversität DortmundReihe Computational Intelligence ; 14004report