Some articles on extensions, extension:

Sheaf Extension - Properties
... As with group extensions, if we fix F and H, then all (equivalence classes of) possible extensions of H by F form an abelian group ... group is isomorphic to the Ext group, where the identity element in corresponds to the trivial extension ... case where H is the structure sheaf, we have, so the group of extensions of by F is also isomorphic to the first sheaf cohomology group with coefficients in F ...
Line B (Rome Metro) - Extensions
... to Piazzale Jonio (and then to Bufalotta), another future extension has been planned beyond Rebibbia with 2 stations San Basilio and Torraccia/Casal Monastero ...
Extensions of The Sethi Model
... Competitive extensions-Nash differential games Empirical testing of the Sethi model and extensions Stackelberg differential games The Sethi durable goods model ...
Conjunctive Query - Extensions of Conjunctive Queries
... Extensions of conjunctive queries capturing more expressive power include unions of conjunctive queries, which are equivalent to positive (i.e ... The formal study of all of these extensions is justified by their application in relational databases and is in the realm of database theory ...

Famous quotes containing the word extensions:

    The psychological umbilical cord is more difficult to cut than the real one. We experience our children as extensions of ourselves, and we feel as though their behavior is an expression of something within us...instead of an expression of something in them. We see in our children our own reflection, and when we don’t like what we see, we feel angry at the reflection.
    Elaine Heffner (20th century)

    If we focus exclusively on teaching our children to read, write, spell, and count in their first years of life, we turn our homes into extensions of school and turn bringing up a child into an exercise in curriculum development. We should be parents first and teachers of academic skills second.
    Neil Kurshan (20th century)