Push forward

This crossword clue is for the definition: Push forward.
it’s A 12 letters crossword puzzle definition.
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Possible Answers: IMPEL.

Last seen on: LA Times Crossword 28 Oct 18, Sunday

Random information on the term “Push forward”:

Suppose that φ : M → N is a smooth map between smooth manifolds; then the differential of φ at a point x is, in some sense, the best linear approximation of φ near x. It can be viewed as a generalization of the total derivative of ordinary calculus. Explicitly, it is a linear map from the tangent space of M at x to the tangent space of N at φ(x). Hence it can be used to push tangent vectors on M forward to tangent vectors on N.


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The differential of a map φ is also called, by various authors, the derivative or total derivative of φ, and is sometimes itself called the pushforward.

Let φ : U → V be a smooth map from an open subset U of Rm to an open subset V of Rn. For any point x in U, the Jacobian of φ at x (with respect to the standard coordinates) is the matrix representation of the total derivative of φ at x, which is a linear map

We wish to generalize this to the case that φ is a smooth function between any smooth manifolds M and N.

Let φ : M → N be a smooth map of smooth manifolds. Given some x ∈ M, the differential of φ at x is a linear map

Push forward on Wikipedia