On midconvex functions with midconcave bounds

C. T. Ng
1988 Proceedings of the American Mathematical Society  
A representation theorem for midconvex functions with midconcave upper bounds is obtained. It solves a problem posed by K. Nikodem.
doi:10.1090/s0002-9939-1988-0928975-7 fatcat:zvlpmrcd5rbyxgtxegu6k5i3tm