The ray transform of symmetric tensor fields with incomplete projection data on convex nonsmooth domain
The ray transform of symmetric tensor fields with incomplete projection data on convex nonsmooth domain
Аннотация:
We consider the ray transform $I\Gamma$ that integrates symmetric rank $m$ tensor fields on $\mathbb{R}^n$ supported in a bounded convex domain $D \subset \mathbb{R}^n$ over lines. The integrals are known for the family $\Gamma$ of lines $l$ such that endpoints of the segment $l \cap D$ belong to a given part $\gamma = \partial D \cap \mathbb{R}^n_+$ of the boundary, for some half-space $\mathbb{R}^n_+ \subset \mathbb{R}^n$. In this work, we assume that the domain $D$ is convex with a non-smooth boundary. In this case, we prove that the kernel of the operator $I\Gamma$ coincides with the space of $\gamma$-potential tensor fields, which is a generalization of the results obtained in [2].
Ключевые слова: tomography with incomplete data, ray transform, tensor analysis