Loop group factorization method for the magnetic and thermostatic nonabelian ray transforms
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913628210331648 |
|---|---|
| author | Jathar, Shubham R. Kar, Manas Railo, Jesse |
| author_facet | Jathar, Shubham R. Kar, Manas Railo, Jesse |
| contents | We study the injectivity of the matrix attenuated and nonabelian ray transforms on compact surfaces with boundary for nontrapping $λ$-geodesic flows and the general linear group of invertible complex matrices. We generalize the loop group factorization argument of Paternain and Salo to reduce to the setting of the unitary group when $λ$ has the vertical Fourier degree at most $2$. This covers the magnetic and thermostatic flows as special cases. Our article settles the general injectivity question of the nonabelian ray transform for simple magnetic flows in combination with an earlier result by Ainsworth. We stress that the injectivity question in the unitary case for simple Gaussian thermostats remains open. Furthermore, we observe that the loop group argument does not apply when $λ$ has higher Fourier modes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_06023 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Loop group factorization method for the magnetic and thermostatic nonabelian ray transforms Jathar, Shubham R. Kar, Manas Railo, Jesse Differential Geometry Analysis of PDEs Primary 44A12, Secondary 58C99, 37E35 We study the injectivity of the matrix attenuated and nonabelian ray transforms on compact surfaces with boundary for nontrapping $λ$-geodesic flows and the general linear group of invertible complex matrices. We generalize the loop group factorization argument of Paternain and Salo to reduce to the setting of the unitary group when $λ$ has the vertical Fourier degree at most $2$. This covers the magnetic and thermostatic flows as special cases. Our article settles the general injectivity question of the nonabelian ray transform for simple magnetic flows in combination with an earlier result by Ainsworth. We stress that the injectivity question in the unitary case for simple Gaussian thermostats remains open. Furthermore, we observe that the loop group argument does not apply when $λ$ has higher Fourier modes. |
| title | Loop group factorization method for the magnetic and thermostatic nonabelian ray transforms |
| topic | Differential Geometry Analysis of PDEs Primary 44A12, Secondary 58C99, 37E35 |
| url | https://arxiv.org/abs/2312.06023 |