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20162026
most citedUniqueness of the partial travel time representation of a compact Riemannian manifold with strictly convex boundary

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math.AP2026

Determination of Wave Speed from interior sources

Joonas Ilmavirta, Teemu Saksala, Ashwin Tarikere +1

We consider the wave equation with variable wave speed in Euclidean space, with point sources modeled by Dirac delta initial displacement data. There are three special subsets of t…

math.AP2026

Rigidity of homogeneous Lamé systems

Joonas Ilmavirta, Teemu Saksala, Lili Yan

In this short paper, we show that any Lamé system whose Dirichlet-to-Neumann map for the elastic wave equation agrees with the one arising from the homogeneous Lamé system must act…