Convexity
21convexity — con•vex•i•ty [[t]kənˈvɛk sɪ ti[/t]] n. pl. ties 1) the state of being convex 2) a convex surface or thing • Etymology: 1590–1600; < L …
22convexity — /kənˈvɛksəti/ (say kuhn veksuhtee) noun (plural convexities) 1. the state of being convex. 2. a convex surface or thing …
23convexity — noun 1. the property possessed by a convex shape (Freq. 1) • Syn: ↑convexness • Derivationally related forms: ↑convex (for: ↑convexness), ↑convex • …
24convexity meningiomas — a diverse group of meningiomas located within the sulci of the brain, usually anterior to the central sulcus; they may be silent for long periods. Symptoms include seizures, weakness of the arm and face, and personality changes …
25Non-convexity (economics) — In economics, non convexity refers to violations of the convexity assumptions of elementary economics. Basic economics textbooks concentrate on consumers with convex preferences (that do not prefer extremes to in between values) and convex budget …
26Bond convexity — In finance, convexity is a measure of the sensitivity of the duration of a bond to changes in interest rates, the second derivative of the price of the bond with respect to interest rates (duration is the first derivative). In general, the higher …
27Modulus and characteristic of convexity — In mathematics, the modulus and characteristic of convexity are measures of how convex the unit ball in a Banach space is. In some sense, the modulus of convexity has the same relationship to the ε δ definition of uniform convexity as the modulus …
28negative convexity — A phrase use to describe a particular type of instability in the duration of an instrument. Negative convexity means that as yields rise, duration rises and as yields fall, duration falls. Graphically, this is seen as a price/yield curve for… …
29positive convexity — A particular type of instability in the duration of an instrument. Positive convexity means that as yields rise, duration declines. Graphically, this is seen as a price/yield curve for which the price at very low and very high yields exceeds the… …
30Geodesic convexity — In mathematics mdash; specifically, in Riemannian geometry mdash; geodesic convexity is a natural generalization of convexity for sets and functions to Riemannian manifolds. It is common to drop the prefix geodesic and refer simply to convexity… …
