Convexity


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Convexity

Property that a curve is above a straight line connecting two end points. If the curve falls below the straight line, it is called concave.

Convexity

Describing a curve segment whose ends fall above an arbitrarily set straight line. Convex properties are important to charting; for example, when tracking a stock market's performance, a rise in the chart with respect to the previous day's close followed by a correction going down to but not necessarily meeting that close may be described as a convex curve. See also: Concave.

convexity

A mathematical measure of the sensitivity of a bond's price to changing interest rates. A high convexity indicates a greater responsiveness of a bond's price to interest rate changes.
References in periodicals archive ?
Paired t test showed that overjet and angle of convexity decreased after twin block appliance treatment significantly.
The client is placed in side-lying position on her left side so that the convexity of the right lumbar scoliotic curve is oriented up toward the ceiling.
Surgery for convexity meningioma: Simpson grade I resection as the goal: clinical article.
An abdominal X-ray was obtained from the patient, in which the coffee bean sign was observed in the LUQ section with upward convexity, indicating sigmoid volvulus.
In short, traditionally the change in asset valuations has a pronounced drop due to an increase in rates because the convexity of the net assets and liabilities are very different, being more evident in assets, as shown in figure 5.
The Banach spaces [l.sub.p], p > 1, are not only uniformly convex but they have a geometric property known as p-uniform convexity (see [1] p.
They can be found in [3], since [[DELTA].sub.1,1] is the same as the second-order convexity [[DELTA].sup.2].
In order to derive the sufficient condition for convexity preserving, there are two cases that need to be considered.
In this paper, we are concerned with the the relation between the positivity of the vth order nabla q-fractional difference and the monotonicity and convexity of f (t).
Two specific properties of the technology will be examined in this paper: returns to scale and convexity properties.
The clinical features about increasing bleeding tendency: (i) age >70 years old or <30 years old; (ii) the location of meningiomas locate at intraventricle or convexity; (iii) histopathalogical type: Meningotheliomatous, malignant, fibrous, and angioblastic type.