31 citations · 239 across the 29 of their papers we have counts for
4 papers · 1 filter
Direct, nonlinear inversion algorithm for hyperbolic problems via projection-based model reduction
Vladimir Druskin, Alexander Mamonov, Andrew E. Thaler +1
We estimate the wave speed in the acoustic wave equation from boundary measurements by constructing a reduced-order model (ROM) matching discrete time-domain data. The state-variab…
Near-optimal perfectly matched layers for indefinite Helmholtz problems
Vladimir Druskin, Stefan Güttel, Leonid Knizhnerman
A new construction of an absorbing boundary condition for indefinite Helmholtz problems on unbounded domains is presented. This construction is based on a near-best uniform rationa…
Exponential Convergence through Linear Finite Element Discretization of Stratified Subdomains
Murthy N. Guddati, Vladimir Druskin, Ali Vaziri Astaneh
Motivated by problems where the response is needed at select localized regions in a large computational domain, we devise a novel finite element discretization that results in expo…
Nonlinear seismic imaging via reduced order model backprojection
Alexander V. Mamonov, Vladimir Druskin, Mikhail Zaslavsky
We introduce a novel nonlinear seismic imaging method based on model order reduction. The reduced order model (ROM) is an orthogonal projection of the wave equation propagator oper…