摘要
本文证明了文[1]中，对一切RP中的单位向量a，Eflogfa有限条件为充要条件，并给出了RP中的P个单位向量a1，a2，…，aP线性无关时，Eflogfai有限的充要条件以及给出由E*（f，gn）→0可推出E（f，gn）→0的条件．
This paper proves that the conclusion given in [1] about the finiteness of Eflogfa for any unit vector a 6 RP is a sufficient and necessary condition under certain circumstance. For the case where the p unit vectors a1, a2,''' , ap ∈ Rp are linearly indepent,this paper gives the sufficient and necessary condition for Ef lg fai to be finite. This paper also gives the condition under which E*(f, gn) → 0 implies E(f, gn) → 0.
出处
《系统科学与数学》
CSCD
北大核心
1997年第1期42-47,共6页
Journal of Systems Science and Mathematical Sciences
关键词
PPDA
有限性
充要条件
相关熵
概率密度
PPDA, sufficient and necessary condition, finiteness, relative entropy
