Document Type

Article

Publication Date

2021

DOI

10.1016/j.ifacol.2021.06.080

Publication Title

IFAC-PapersOnLine

Volume

54

Issue

9

Pages

231-238

Abstract

Model continuity plays an important role in applications like system identification, adaptive control, and machine learning. This paper provides sufficient conditions under which input-output systems represented by locally convergent Chen-Fliess series are jointly continuous with respect to their generating series and as operators mapping a ball in an Lp-space to a ball in an Lq-space, where p and q are conjugate exponents. The starting point is to introduce a class of topological vector spaces known as Silva spaces to frame the problem and then to employ the concept of a direct limit to describe convergence. The proof of the main continuity result combines elements of proofs for other forms of continuity appearing in the literature to produce the desired conclusion.

Comments

© 2021 The Authors. This is an open access article under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) license.

Original Publication Citation

Dahmen, R., Gray, W. S., & Schmeding, A. (2021). Continuity of Chen-Fliess series for applications in system identification and machine learning. IFAC-PapersOnLine, 54(9), 231-238. https://doi.org/10.1016/j.ifacol.2021.06.080

Share

COinS