Nowhere continuity of the flow map of an integrable derivative nonlinear Schrödinger system on the torus

[2607.05796] Nowhere continuity of the flow map of an integrable derivative nonlinear Schrödinger system on the torus Skip to main content Search Submit Donate Log in Mathematics > Analysis of PDEs arXiv:2607.05796 (math) [Submitted on 7 Jul 2026] Title: Nowhere continuity of the flow map of an integrable derivative nonlinear Schrödinger system on the torus Authors: Toshiki Kondo View PDF HTML (experimental) Abstract: We consider a derivative nonlinear Schrödinger system called the Chen-Lee-Liu type system on the torus. This system is known as a completely integrable system. We prove the flow map fails to be continuous at every point in the Sobolev space $H^s(\mathbb{T}) \times H^s(\mathbb{T})$. Moreover, we establish an additional condition required for the flow map to be continuous. For the discontinuity, we take a sequence converging to the initial data for which the corresponding solutions do not exist. Comments: 17pages Subjects: Analysis of PDEs (math.AP) Cite as: arXiv:2607.05796 [math.AP] (or arXiv:2607.05796v1 [math.AP] for this version) https://doi.org/10.48550/arXiv.2607.05796 Focus to learn more arXiv-issued DOI via DataCite Journal reference: NoDEA Nonlinear Differential Equations Appl. 33, 124 (2026) Related DOI : https://doi.org/10.1007/s00030-026-01265-5 Focus to learn more DOI(s) linking to related resources Submission history From: Toshiki Kondo [ view email ] [v1] Tue, 7 Jul 2026 03:49:35 UTC (15 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: math.AP < prev | next > new | recent | 2026-07 Change to browse by: math References & Citations SciX Google Scholar Semantic Scholar export BibTeX citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from (opens in new tab) (opens in new tab) (opens in new tab)

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