Numerical Analysis of the Method of Differentiation by Means of Real h-Sums

Interpolation by generalized exponential sums with equal weights

“…are usually called h-sums; they were introduced in [13]. The most explored case is η = 1, λ k h(λ k z), λ k ∈ C, see [6,8,9,13,14,16,22]. The paper [13] contains several remarks 1 on the general case (3).…”