Associations to the word «Pullback»

PULLBACK, noun. The act or result of pulling back; a withdrawal.

PULLBACK, noun. (film) The act of drawing a camera back to broaden the visible scene.

PULLBACK, noun. That which holds back, or causes to recede; a drawback; a hindrance.

PULLBACK, noun. (architecture) The iron hook fixed to a casement to pull it shut, or to hold it partly open at a fixed point.

PULLBACK, noun. (finance) A reduction in the price of a financial instrument after reaching a peak

PULLBACK, noun. (category theory) Given a pair of morphisms \(f:X\rightarrow Z\) and \(g: Y\rightarrow Z\) with a common codomain, Z, their pullback is a pair of morphisms \(p_1:P\rightarrow X\) and \(p_2:P\rightarrow Y\) as well as their common domain, P, such that the equation \( f\circ p_1 = g\circ p_2\) is satisfied, and for which there is the universal property that for any other object Q for which there are also morphisms \(q_1: Q\rightarrow X\), \(q_2: Q\rightarrow Y\); there is a unique morphism \(u: Q\rightarrow P\) such that \( p_1\circ u = q_1\) and \(p_2 \circ u = q_2\).

PULLBACK, noun. A device (as a decorative loop of cord or fabric) for holding or drawing something back; "the draperies were drawn to the sides by pullbacks".

PULLBACK, noun. (military) the act of pulling back (especially an orderly withdrawal of troops); "the pullback is expected to be over 25,000 troops".