%0 Journal Article %T Numerical Detection of the Lowest ˇ°Efficient Dimensionsˇ± for Chaotic Fractional Differential Systems %A Tongchun Hu %A Yihong Wang %J The Open Mathematics Journal %D 2008 %I %R 10.2174/1874117400801010011] %X In this paper we numerically investigate the dynamical behavior of fractional differential systems. By utilizing the fractional Adams method, we numerically find the smallest ˇ°efficient dimensionsˇ± of the fractional Lorenz system and Rˇ§ossler system such that they are chaotic. %U http://www.benthamscience.com/open/tomatj/articles/V001/11TOMATJ.htm