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The pullback bundle is an example that bridges the notion of a pullback as precomposition, and the notion of a pullback as a Cartesian square. In that example, the base space of a fiber bundle is pulled back, in the sense of precomposition, above. The fibers then travel along with the points in the base space at which they are anchored: the ...
Another example of a pullback comes from the theory of fiber bundles: given a bundle map π : E → B and a continuous map f : X → B, the pullback (formed in the category of topological spaces with continuous maps) X × B E is a fiber bundle over X called the pullback bundle. The associated commutative diagram is a morphism of fiber bundles.
A push poll is an interactive marketing technique, most commonly employed during political campaigning, in which a person or organization attempts to manipulate or alter prospective voters' views under the guise of conducting an opinion poll. Large numbers of voters are contacted with little effort made to collect and analyze their response ...
Pullback (differential geometry) Let be a smooth map between smooth manifolds and . Then there is an associated linear map from the space of 1-forms on (the linear space of sections of the cotangent bundle) to the space of 1-forms on . This linear map is known as the pullback (by ), and is frequently denoted by .
Graft, as understood in American English, is a form of political corruption defined as the unscrupulous use of a politician's authority for personal gain. Political graft occurs when funds intended for public projects are intentionally misdirected in order to maximize the benefits to private interests. Political graft functions when the public ...
Takeaways. Phimosis is a condition where the foreskin can't be pulled back from the head of the penis. It's normal in babies and small children, and they usually grow out of it. It can also be ...
Definition. The pullback attractor (or random global attractor) for a random dynamical system is a - almost surely unique random set such that. almost surely. There is a slight abuse of notation in the above: the first use of "dist" refers to the Hausdorff semi-distance from a point to a set, whereas the second use of "dist" refers to the ...
The lat pulldown is a great exercise to target your lats, but it also works a variety of other muscles that work together to extend and adduct your arms. It provides an alternative to the pullup ...