2 problems

Let $m\in\mathbb N$ be an arbitrary derivative order, and consider B-spline estimators of a univariate function subject to an $m$th-order nonnegative derivative constraint. The ass…

In the equally spaced sequence formulation of concave regression, let $K_n$ be the cone of concave sequences in ${\mathbb R}^n$, let $\hat{\theta}$ be the least-squares estimator o…