Opinion articles provide independent perspectives on key community issues, separate from our newsroom reporting. By Ned Barnett On the surface, the Research Triangle region is a model for economic ...

Math Horizons is intended primarily for undergraduates interested in mathematics. Our purpose is to introduce students to the world of mathematics outside the classroom. Thus, while we especially ...

A simple relaxation consisting of two rows of a simplex tableau is a mixed-integer set with two equations, two free integer variables, and nonnegative continuous variables. Recently, Andersen et al.