Set-Based B-Series

Julien Alexandre dit Sandretto ()
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Julien Alexandre dit Sandretto: U2IS, ENSTA Paris, Institut Polytechnique de Paris, 91120 Palaiseau, France

Mathematics, 2022, vol. 10, issue 17, 1-14

Abstract: B-series were defined to unify the formalism of solutions for ordinary differential equations defined by series. Runge–Kutta schemes can be seen as truncated B-series, similar to Taylor series. In the prolific domain of reachability analysis, i.e., the process of computing the set of reachable states for a system, many techniques have been proposed without obvious links. In the particular case of uncertain initial conditions and/or parameters in the definition of differential equations, set-based approaches are a natural and elegant method to compute reachable sets. In this paper, an extension to B-series is proposed to merge these techniques in a common formalism—named set-based B-series. We show that the main properties of B-series are preserved. A validated technique, based on Runge–Kutta methods, able to compute such series, is presented. Experiments are provided in order to illustrate the proposed approach.

Keywords: differential equations; Runge–Kutta series; Taylor series; set-based methods (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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