Global mild solution with polynomial tail for the Boltzmann equation in the whole space
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2022
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| _version_ | 1866911123235667968 |
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| author | Duan, Renjun Li, Zongguang Liu, Shuangqian |
| author_facet | Duan, Renjun Li, Zongguang Liu, Shuangqian |
| contents | We are concerned with the Cauchy problem on the Boltzmann equation in the whole space. The goal is to construct global-in-time bounded mild solutions near Maxwellians with the perturbation admitting a polynomial tail in large velocities. The proof is based on the Caflisch's decomposition together with the $L^2- L^\infty$ interplay technique developed by Guo. The full range of both hard and soft potentials under the Grad's cutoff assumption can be covered. The main difficulty to be overcome in case of the whole space is the polynomial time decay of solutions which is much slower than the exponential rate in contrast with the torus case. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_04676 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Global mild solution with polynomial tail for the Boltzmann equation in the whole space Duan, Renjun Li, Zongguang Liu, Shuangqian Analysis of PDEs Mathematical Physics We are concerned with the Cauchy problem on the Boltzmann equation in the whole space. The goal is to construct global-in-time bounded mild solutions near Maxwellians with the perturbation admitting a polynomial tail in large velocities. The proof is based on the Caflisch's decomposition together with the $L^2- L^\infty$ interplay technique developed by Guo. The full range of both hard and soft potentials under the Grad's cutoff assumption can be covered. The main difficulty to be overcome in case of the whole space is the polynomial time decay of solutions which is much slower than the exponential rate in contrast with the torus case. |
| title | Global mild solution with polynomial tail for the Boltzmann equation in the whole space |
| topic | Analysis of PDEs Mathematical Physics |
| url | https://arxiv.org/abs/2212.04676 |