CAMar 7, 2016
Interpolation of data by smooth non-negative functionsCharles Fefferman, Arie Israel, Garving K. Luli
We prove a finiteness principle for interpolation of data by nonnegative Cm functions. Our result raises the hope that one can start to understand constrained interpolation problems in which e.g. the interpolating function F is required to be nonnegative.