2 papers
math.FA2025
Polynomial Approximation in Higher-Order Weighted Dirichlet Spaces
Yuanhao Yan, Li He
Fejér's theorem guarantees norm convergence of Cesà ro means of Taylor partial sums in the Hardy space, whereas such convergence generally fails in weighted Dirichlet-type spaces,…
physics.app-ph2025
Observation of Coherent Perfect Acoustic Absorption at an Exceptional Point
Yi-Fei Xia, Zi-Xiang Xu, Yu-Ting Yan +5
Non-Hermitian systems have recently shown new possibilities to manipulate wave scattering by exploiting loss, yet coherent perfect absorption at an exceptional point (CPA EP) remai…