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JOURNALS // Sibirskie Èlektronnye Matematicheskie Izvestiya [Siberian Electronic Mathematical Reports] // Archive

Sib. Èlektron. Mat. Izv., 2024 Volume 21, Issue 2, Pages 1011–1023 (Mi semr1730)

This article is cited in 1 paper

Real, complex and functional analysis

The ray transform of symmetric tensor fields with incomplete projection data on a convex non-smooth domain

N. A. Vaytsel

Novosibirsk State University, 2, Pirogova str., 630090, Novosibirsk, Russia

Abstract: 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 $R^n_{+}\subset \mathbb{R}^n$. 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].

Keywords: tomography with incomplete data, ray transform, tensor analysis.

UDC: 517.9

MSC: 44A12, 46F12

Received March 7, 2023, published November 8, 2024

Language: English

DOI: 10.33048/semi.2024.21.067



© Steklov Math. Inst. of RAS, 2026