Pullback
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High Quality Content by WIKIPEDIA articles! Pullback refers to two different, but related processes: precomposition and fiber-product. Its "dual" is pushforward. Precomposition with a function probably provides the most elementary notion of pullback: in simple terms, a function f of a variable y, where y itself is a function of another variable x, may be written as a function of x. This is the pullback of f by the function y(x). It is such a fundamental process, that it is often passed over without mention, for instance in elementary calculus: this is sometimes called omitting pullbacks, and pervades areas as diverse as fluid mechanics and differential geometry. However, it is not just functions that can be "pulled back" in this sense. Pullbacks can be applied to many other objects such as differential forms and their cohomology classes.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786130467159
- Genre Technik
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Sprache Englisch
- Anzahl Seiten 84
- Herausgeber Betascript Publishers
- Größe H220mm x B220mm
- Jahr 2010
- EAN 9786130467159
- Format Fachbuch
- ISBN 978-613-0-46715-9
- Titel Pullback
- Untertitel Pushforward, Fluid Mechanics, Differential Geometry, Differential Forms, De Rham Cohomology
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