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EnglishThe paper aims at giving a first insight on the existence/nonexistence of ground states for the L2-critical NLS equation on metric graphs with localized nonlinearity. As a consequence, we focus on the tadpole graph, which, albeit being a toy model, allows to point out some specific features of the problem, whose understanding will be useful for future investigations. More precisely, we prove that there exists an interval of masses for which ground states do exist, and that for large masses the functional is unbounded from below, whereas for small masses ground states cannot exist although the functional is bounded.
Ground states of the L^2-Critical NLS Equation with Localized Nonlinearity on a Tadpole Graph / Dovetta, S.; Tentarelli, L.. - 281(2020), pp. 113-125.
| Titolo: | Ground states of the L^2-Critical NLS Equation with Localized Nonlinearity on a Tadpole Graph |
| Autori: | |
| Data di pubblicazione: | 2020 |
| Titolo del libro: | Operator Theory: Advances and Applications |
| Serie: | |
| Abstract: | The paper aims at giving a first insight on the existence/nonexistence of ground states for the L...2-critical NLS equation on metric graphs with localized nonlinearity. As a consequence, we focus on the tadpole graph, which, albeit being a toy model, allows to point out some specific features of the problem, whose understanding will be useful for future investigations. More precisely, we prove that there exists an interval of masses for which ground states do exist, and that for large masses the functional is unbounded from below, whereas for small masses ground states cannot exist although the functional is bounded. |
| ISBN: | 978-3-030-44096-1 978-3-030-44097-8 |
| Appare nelle tipologie: | 2.1 Contributo in volume (Capitolo o Saggio) |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Dovetta S., Tentarelli L., Ground states of the L2-critical NLS equation with localized nonlinearity on a tadpole graph, 2020.pdf | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia | |
| 1803.09246.pdf | 1. Preprint / Submitted Version | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2846755
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