In this paper we study the problem of computing the (family of) reduced order model(s) that satisfy the following properties the systems match the moments of the given to be reduced system and the ...

A. S. Lewis, Derivatives of Spectral Functions, Mathematics of Operations Research, Vol. 21, No. 3 (Aug., 1996), pp. 576-588 ...

Abstract: In this contribution, the Ewald method has efficiently been applied to accelerate the computation of the rectangular waveguide Green’s functions (GFs) derivatives. Based on previous works, ...

When estimating derivatives of regression functions from noisy data, a number of additional problems arise compared with the estimation of the regression function itself. Linear methods, such as ...