Guillarmou's Normal Operator for Flows

Published:Dec 28, 2025 23:07
1 min read
ArXiv

Analysis

This paper extends Guillarmou's normal operator, a tool analogous to the geodesic X-ray transform's normal operator, to magnetic and thermostat flows. The key result is demonstrating that these generalized normal operators are elliptic pseudodifferential operators of order -1, leading to a stability estimate for the magnetic X-ray transform. This work contributes to the mathematical understanding of these complex dynamical systems and provides a stability result for a related transform.

Reference

The paper shows that generalized normal operators are elliptic pseudodifferential operators of order -1.