concavity

concave | American Dictionary

concave
adjective
us/kɑnˈkeɪv, kɑŋ-/
curved inward:
a concave lens

Examples of concave

concave
Then the adjacent bubble surfaces would be circular arcs concave upward.
Note that, in this framework, an equal distribution of income would indeed be recommended under the unlikely conditions of people having identical, concave utility functions.
Therefore, a concave body may be virtually cut into several convex subbodies at the stage of creating the geometry model of the body.
Firstly, note that with a concave tax schedule, the tax burden rises relatively steeply when pollution levels are low.
Specifically, latency of a discriminative response, like probability of generalization, falls off according to a decreasing, concave-upward function of distance between stimuli in representational space.
Thus, virtual extension consists of transforming the convex faces in the second and third classes into concave faces by generating virtual links.
The specimen as preserved is slightly concave, owing to compression.
The shear elasticity of the membrane prevents folding, but may cause the formation of sharp corners and concave regions along the cell contour.
The dip below the logarithmic law usually observed in two-dimensional concave wall boundary layers is absent.
This decrease, however, is opposed by an increase in pressure due to the concave curvature in the axial direction.
This implies that the objective functional coincides with the social production function of the consumption-good sector which is nonlinear and concave. 14.
How consumers respond to uncertainty depends on whether their marginal utility is convex or concave in consumption.
These fragments did not correspond to the same object, both had the characteristic concave side facing the ground and neither one had basal supports.
This effect (discounting) will again tend to make the utility function for survival time concave.
And different concave transformations express different opinions about the distribution of chances in such cases.
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