limn
1.The spinel-type oxides LiMn 2-x Co x O 4 were prepared by sintering the compound powder composed of lithium carbonate(Li 2 CO 3 ),electrolytic manganese dioxide(EMD),and Co (NO 3 ) 2 ·6H 2 O at high temperature.
2.K be a sequence satisfying the conditions:Let x0∈K and {xn}n∞=1 be defined by xn=anxn-1+(1-an)Tnxn+un-1,n≥1, where Tn=TnmodN,then (i)limn→∞‖xn-p‖exists for all p∈F;
