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arXiv · 2509.21095

On the radius of spatial analyticity for the Majda-Biello and Hirota-Satsuma systems

Seongyeon Kim·Ihyeok Seo
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Abstract

We investigate the persistence of spatial analyticity for solutions to the Majda-Biello and Hirota-Satsuma systems with analytic initial data. This result is the first to establish analyticity persistence in such coupled KdV systems.

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Seongyeon Kim, Ihyeok Seo. 2025-09-25. On the radius of spatial analyticity for the Majda-Biello and Hirota-Satsuma systems. https://arxiv.org/abs/2509.21095

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