Yangwen Zhang

activity

20192026

most citedHDG and CG methods for the Indefinite Time-Harmonic Maxwell's Equations under minimal regularity

1 citations · 1 across the 14 of their papers we have counts for

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Showing 2021Show all

2 papers · 1 filter

math.NA2021

Sharp $L^{\infty}$ estimates of HDG methods for Poisson equation II: 3D

Gang Chen, Peter Monk, Yangwen Zhang

In [SIAM J. Numer. Anal., 59 (2), 720-745], we proved quasi-optimal $L^{\infty}$ estimates (up to logarithmic factors) for the solution of Poisson's equation by a hybridizable discon…

math.AP2021

Inverse Boundary Value Problems for Wave Equations with Quadratic Nonlinearities

Gunther Uhlmann, Yang Zhang

We study inverse problems for the nonlinear wave equation $□_{g} u + w (x, u, \nabla_{g} u) = 0$ in a Lorentzian manifold $(M, g)$ with boundary, where $\nabla_{g} u$ denotes the grad…

Sharp L∞ estimates of HDG methods for Poisson equation II: 3D

Inverse Boundary Value Problems for Wave Equations with Quadratic Nonlinearities

Sharp $L^{\infty}$ estimates of HDG methods for Poisson equation II: 3D