3 papers
gr-qc2025
On finding gravitational waves from anisotropies of the Cosmic Microwave Background
Yiran Wang
The integrated Sachs-Wolfe (ISW) effect describes how photons are gravitationally redshifted, producing anisotropies in the Cosmic Microwave Background. We study the inverse proble…
math.NA2025
Robustness of data-driven approaches in limited angle tomography
Yiran Wang, Yimin Zhong
The limited angle Radon transform is notoriously difficult to invert due to its ill-posedness. In this work, we give a mathematical explanation that data-driven approaches can stab…
math.SP2025
The distribution of negative eigenvalues of Schrödinger operators on asymptotically hyperbolic manifolds
Antônio Sá Barreto, Yiran Wang
We study the asymptotic behavior of the counting function of negative eigenvalues of Schrödinger operators with real valued potentials on asymptotically hyperbolic manifolds. We e…