2 papers
math.AP2026
The Stability of the Backward Problem for Photoacoustic Imaging in Attenuating Media via Carleman Estimates
Qihang Chen, Zhiyuan Li, Song Xu
This paper investigates the backward problem in time for photoacoustic tomography (PAT) in attenuating media. It is well-established that photoacoustic imaging in attenuating media…
cs.LG2026
A Spectral Theory of Normalized Corrected GNN Propagation
Qihan Chen, Wei Li, Meng Qin +1
We develop a spectral theory for \emph{normalized corrected GNN propagation}. The object of study is the symmetric normalized adjacency with its degree-stationary component removed…