【摘要】 利用模丛之间的嵌入关系,构造出了自由丛的嵌入子丛和任一模丛的嵌入子自由丛.得到一般模丛都能够成为一个自由丛的嵌入子丛;同时任一模丛也能够有一自由丛(或投射丛)是它的嵌入子丛;还给出了投射丛转化为自由丛的条件.更多还原

【Abstract】 To construct the embedded subbundles of free bundles and the embedded free subbundles of any module bundles,by using embedded relation of module bundles.It is indicated that any module bundles can becomes a embedded subbundles of free bundles,and that there is a free bundles(or projective bundles) is a embedded subbundles of any module bundles also. In particular,the condition which projective bundles change into free bundles is given.更多还原