open cover उदाहरण वाक्य

उदाहरण वाक्य

1. Similarly one can define the join \ textstyle \ bigvee _ { i = 1 } ^ n \ alpha _ i of any finite collection of open covers of \ textstyle X.
2. The adverb " "'countably "'" can be added to any of the adjectives " paracompact ", " metacompact ", and " fully normal " to make the requirement apply only to countable open covers.
3. Then is an open cover of " S ", but any finite subcollection of has the form of " C " discussed previously, and thus cannot be an open subcover of " S ".
4. The Leray condition on an open cover ensures that the cover in question is already " fine enough . " The derived functor cohomology agrees with the
   ech cohomology with respect to any Leray cover.
5. This means that ever open cover has a countable subcover which means that in particular the topology on X has a countable subcover and let that countable subcover be the basis and we are done.
6. Since each point x is contained in its own U _ x, we find that the collection \ { U _ x \ mid x \ in M \ } is an open cover of M.
7. On the other hand,
   ech cohomology with respect to an open cover is well-suited to calculation, but of limited usefulness because it depends on the open cover chosen, not only on the sheaves and the space.
8. On the other hand,
   ech cohomology with respect to an open cover is well-suited to calculation, but of limited usefulness because it depends on the open cover chosen, not only on the sheaves and the space.
9. Lindel�f's lemma is also known as the statement that every open cover in a second-countable space has a countable subcover ( Kelley 1955 : 49 ) This means that every second-countable space is also a Lindel�f space.
10. Similarly, any open cover of the unit disk in the two-dimensional plane can be refined so that any point of the disk is contained in no more than three open sets, while two are in general not sufficient.