正式的说,假设 X 是集合而 (ak)k∈K 是 X 中的串行,这里的 K = {1,2,3,...,n}, 如果 (ak) 是有限串行,且 K = ,当 (ak) 是无限串行。则 (ak) 的子串行是形如 的串行,这里的 (nr) 是在索引集合 K 中严格递增串行。
英语百科
Subsequence 子序列
In mathematics, a subsequence is a sequence that can be derived from another sequence by deleting some elements without changing the order of the remaining elements. For example, the sequence is a subsequence of obtained after removal of elements , , and . The relation of one sequence being the subsequence of another is a preorder.
近义、反义、联想词
近义词
n.
result, resultant, final result, outcome, termination, lateness