Singularity formation for the fractional Euler-alignment system in 1D
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- by Victor Arnaiz and Ángel Castro PDF
- Trans. Amer. Math. Soc. 374 (2021), 487-514 Request permission
Abstract:
We study the formation of singularities for the Euler-alignment system with influence function $\psi =\frac {k_\alpha }{|x|^{1+\alpha }}$ in 1D. As in [Commun. Math. Sci. 17 (2019), pp. 1779–1794] the problem is reduced to the analysis of a nonlocal 1D equation. We show the existence of singularities in finite time for any $\alpha$ in the range $0<\alpha <2$ in both the real line and the periodic case and with just a point of vacuum.References
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Additional Information
- Victor Arnaiz
- Affiliation: Instituto de Ciencias Matemáticas ICMAT-CSIC-UAM-UCM-UC3M, 28049, Madrid, Spain
- Email: victor.arnaiz@icmat.es; victor.arnaiz@universite-paris-saclay.fr
- Ángel Castro
- Affiliation: Instituto de Ciencias Matemáticas ICMAT-CSIC-UAM-UCM-UC3M, 28049, Madrid, Spain
- Email: angel_castro@icmat.es
- Received by editor(s): December 20, 2019
- Received by editor(s) in revised form: May 11, 2020
- Published electronically: October 26, 2020
- Additional Notes: The authors were supported by the Spanish Ministry of Economy under the ICMAT–Severo Ochoa grant SEV2015-0554 and the Europa Excelencia program ERC2018-092824.
The first author was partially supported by the MTM2017-85934-C3-3-P
The second author was partially supported by the MTM2017-89976-P and the ERC Advanced Grant 788250. - © Copyright 2020 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 374 (2021), 487-514
- MSC (2010): Primary 35B65, 35Q35, 35Q92, 35R09
- DOI: https://doi.org/10.1090/tran/8228
- MathSciNet review: 4188190