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JOURNALS // Trudy Matematicheskogo Instituta imeni V.A. Steklova // Archive

Trudy Mat. Inst. Steklova, 2024 Volume 327, Pages 79–86 (Mi tm4424)

On the Newton–Kantorovich Scheme for Evolutionary Equations

Andrey V. Dymovabc, Sergei B. Kuksindace

a Steklov Mathematical Institute of Russian Academy of Sciences, Moscow, Russia
b National Research University Higher School of Economics, Moscow, Russia
c Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
d Université Paris Cité & Sorbonne Université, CNRS, IMJ–PRG, Paris, France
e Institute for Financial Studies, Shandong University, Jinan, China

Abstract: We propose a constructive form of the Newton–Kantorovich method to obtain solutions for evolutionary equations with small nonlinearities. The construction is applicable to equations in non-Banach linear spaces. The paper presents only a sketch of the method, without specifying the norms involved and without giving necessary $\varepsilon $$\delta $ details.

Keywords: evolutionary equations, Newton–Kantorovich scheme, KAM theory, approximate propagators.

Received: May 7, 2024
Revised: September 23, 2024
Accepted: September 25, 2024

DOI: 10.4213/tm4424


 English version:
Proceedings of the Steklov Institute of Mathematics, 2024, 327, 70–77

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© Steklov Math. Inst. of RAS, 2025