Consider the random intervals In(W) := (wn -en/2,Wn +en/2)(mod 1) with their centers wn being i.i.d, but not necessary uniformly distributed on the circle T = R/Z and with their lengths decreasing to zero. Usi...Consider the random intervals In(W) := (wn -en/2,Wn +en/2)(mod 1) with their centers wn being i.i.d, but not necessary uniformly distributed on the circle T = R/Z and with their lengths decreasing to zero. Using the dimension theory in dynamical systems, we give conditions on which the circle is finitely or infinitely often covered by intervals {In ( w ) } n≥ 1.展开更多
基金supported by National Natural Science Foundation of China (Grant No.10971069)the Shanghai Education Committee Project (Grant No. 11ZZ41)
文摘Consider the random intervals In(W) := (wn -en/2,Wn +en/2)(mod 1) with their centers wn being i.i.d, but not necessary uniformly distributed on the circle T = R/Z and with their lengths decreasing to zero. Using the dimension theory in dynamical systems, we give conditions on which the circle is finitely or infinitely often covered by intervals {In ( w ) } n≥ 1.