The following results are given: A necessary condition of Fspace and a character of F subspace in linear order space;
主要结果有:给出了F空间判定的必要条件; 得到了线性序拓扑空间中的F子空间的刻画;
2
John Logsdon, the doyen of American space studies, takes a more generous view in his new book (" John F. Kennedy and the Race to the Moon ", Palgrave Macmillan).
F. Order advertising space, time or other means to be used for publication of Advertiser's advertisements, all time endeavoring to secure the most efficient and advantageous rates available.