3 papers
math.AP2025
A Hyperbolic Inverse Problem for lower order terms on a closed manifold with disjoint data
Matti Lassas, Boya Liu, Teemu Saksala +2
We study the unique recovery of time-independent lower order terms appearing in the symmetric first order perturbation of the Riemannian wave equation by sending and measuring wave…
math.AP2025
An Inverse Problem for symmetric hyperbolic Partial Differential Operators on Complete Riemannian Manifolds
Teemu Saksala, Andrew Shedlock
We show that a complete Riemannian manifold, as well as time independent smooth lower order terms appearing in a first order symmetric perturbation of a Riemannian wave operator ca…
math.MG2024
Lipschitz Stability of Travel Time Data
Joonas Ilmavirta, Antti Kykkänen, Matti Lassas +2
We prove that the reconstruction of a certain type of length spaces from their travel time data on a closed subset is Lipschitz stable. The travel time data is the set of distance…