1 citations · 2 across the 5 of their papers we have counts for
6 papers
An Inverse Problem for Infinitely Divisible Moving Average Random Fields
Wolfgang Karcher, Stefan Roth, Evgeny Spodarev +1
Given a low frequency sample of an infinitely divisible moving average random field with a known simple function , w…
Extrapolation of stable random fields
Wolfgang Karcher, Elena Shmileva, Evgeny Spodarev
In this paper, we discuss three extrapolation methods for alpha-stable random fields with 1<alpha<=2. We justify them, giving proofs of the existence and uniqueness of the solution…
Some results on random fields admitting a spectral representation with infinitely divisible integrator
Wolfgang Karcher
We consider random fields admitting a spectral representation with infinitely divisible integrator and prove some of their properties.
Simulation of infinitely divisible random fields
Wolfgang Karcher, Hans-Peter Scheffler, Evgeny Spodarev
Two methods to approximate infinitely divisible random fields are presented. The methods are based on approximating the kernel function in the spectral representation of such field…
Derivation of an upper bound of the constant in the error bound for a near best m-term approximation
Wolfgang Karcher, Hans-Peter Scheffler, Evgeny Spodarev
In the paper "The best m-term approximation and greedy algorithms" (V. N. Temlyakov), an error bound for a near best m-term approximation of a function g in L^p([0,1]^d) is provide…
Infinite divisibility of random fields admitting an integral representation with an infinitely divisible integrator
Wolfgang Karcher, Hans-Peter Scheffler, Evgeny Spodarev
We consider random fields that can be represented as integrals of deterministic functions with respect to infinitely divisible random measures and show that these random fields are…