摘要 : Let {qn} be monotone decreasing sequence for sufficiently large n. If the limit of qn is zero as n→∞, then it is denoted by qn↓ O. If there exists β>0 such that n-βqn↓O, then the sequence {qn} is called a quasi-monotone sequenc... 展开 Let {qn} be monotone decreasing sequence for sufficiently large n. If the limit of qn is zero as n→∞, then it is denoted by qn↓ O. If there exists β>0 such that n-βqn↓O, then the sequence {qn} is called a quasi-monotone sequence, which is denoted by qn↓↓O. 收起