The main result proved in this paper is that the ratio of the square of a nonnegative convex function to a strictly positive concave function is convex over a convex domain. Some particular cases of ...

In this problem, the optimal path is one that maximizes the expected utility, with the utility function being piecewise-linear and concave. Such a utility function can be used to approximate nonlinear ...

Mathematicians used “magic functions” to prove that two highly symmetric lattices solve a myriad of problems in eight- and 24-dimensional space.

Among men and women 18 to 55 years of age, more than half of women and just under half of men had sexual function problems in the year after a heart attack, according to a study published online ...

Learn Relations and Functions Problems and crack CAT Quantitative Aptitude This article takes you through some of the applications of the concepts that may be tested in Relations and Functions ...

“This problem, [which] came before people introduced one-way functions, actually turns out to fully characterize it,” Pass said. The finding suggests that instead of looking far and wide for candidate ...

Brain's Problem-solving Function At Work When We Daydream Date: May 12, 2009 Source: University of British Columbia Summary: Our brains are much more active when we daydream than previously ...