关于分维数的基本概念及测定方法见文献[1]、[2]。
张勇利.初探地震活动的时间分维特征[J].地震工程学报,1989,11(s1):65-68. Zhang Yongli. PRELIMINARY APPROACH ON TEMPORAL FRACTAL CHARACTERISTICS OF EARTHQUAKE ACTIVITIES[J]. China Earthquake Engineering Journal,1989,11(s1):65-68.
