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math.AP2026

Recovery of a Measure-valued Source in the Heat Equation from Sparse Boundary Measurements

Ulysse Dalmasso, Siyu Cen, Yavar Kian

This article is devoted to the inverse source problem of uniquely determining a measure-valued source from sparse boundary measurements. The measurements considered consist of flux…

math.AP2026

Identification of a Point Source in the Heat Equation from Sparse Boundary Measurements

Fangyu Gong, Bangti Jin, Yavar Kian +1

In this work we investigate the inverse problem of recovering one point source in the heat equation from sparse boundary measurement, i.e., the flux data at several points on the b…

math.AP2026

Stability Estimates for the Inverse Problem of Reconstructing Point sources in Parabolic Equations

Kuang Huang, Bangti Jin, Yavar Kian +1

In this work, we investigate the stability issue of the inverse problem of determining the locations and time-dependent amplitudes of point sources in a parabolic equation with a n…

math.AP2026

Unique Determination of Variable Order in Subdiffusion from a Single Measurement

Jiho Hong, Bangti Jin, Yavar Kian

We study the inverse problem of recovering a spatially dependent variable order in a time-fractional diffusion model from the boundary flux measurement generated by a single bounda…

math.AP2026

Inverse problem for the geometric Navier-Stokes equations

Yavar Kian, Lauri Oksanen, Ziyao Zhao

We consider the inverse problem of determining a compact Riemannian manifold with boundary from fixed time observations of the solution, restricted to a small subset in space, for…

math.AP2026

Recovery of nonlinear material parameters in a quasilinear Lamé system

David Johansson, Yavar Kian

We investigate the inverse problem of determining nonlinear elastic material parameters from boundary stress measurements corresponding to prescribed boundary displacements. The ma…