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concave function

   Also found in: Wikipedia 0.01 sec.
concave function [′kän‚kāv ′fəŋk·shən]
(mathematics)
A functionf(x) is said to be concave over the intervala,bif for any three pointsx1,x2,x3such thata<x1<x2<x3<b, f(x2)≥L(x2), whereL(x) is the equation of the straight line passing through the points [x1,f(x1)] and [x3,f(x3)].
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Pecaric, A continuous analogue and an extension of Rado's for convex and concave function, Bull.
On An Inequality related to Hadamard * by Yang, Gou-Sheng; Chou, Yi-Ming; Ho, Ming-In / Tamsui Oxford Journal of Mathematical Sciences
Let us now introduce more realism in our assumptions by continuing to have T as a strictly concave function of capital and assuming that the terrorist leader's valuation of his life is a function of the total financial contributions made by his followers as the latter indicates his money power.
Economic model of terrorism and terrorist activities: a short note by Mitra, Siddhartha / Indian Journal of Economics and Business
[8] On the other hand, if the value of managed funds is not a concave function of fund performance, [beta] [greater than or equal to] 0, then SEC constraints on contracting ensure that it is unprofitable for investors to employ fund managers.
Chasing Hot Funds: The Effects of Relative Performance on Portfolio ... by Bagnoli, Mark; Watts, Susan G. / Financial Management
 
 
 
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