全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:P. Gatto , J. S. Hesthaven
来源:[J].Journal of Scientific Computing(IF 1.71), 2017, Vol.72 (1), pp.49-80Springer
摘要:We introduce a preconditioner based on a hierarchical low-rank compression scheme of Schur complements. The construction is inspired by standard nested dissection, and relies on the assumption that the Schur complements can be approximated, to high precision, by Hierarchically-Se...
作者:S. Yeganeh , R. Mokhtari , J. S. Hesthaven
来源:[J].BIT Numerical Mathematics(IF 0.977), 2017, Vol.57 (3), pp.685-707Springer
摘要:This paper is devoted to determining a space-dependent source term in an inverse problem of the time-fractional diffusion equation. We use a method based on a finite difference scheme in time and a local discontinuous Galerkin method in space and investigate the numerical stabili...
作者:J. S. Hesthaven , S. M. Kaber , L. Lurati
来源:[J].Journal of Scientific Computing(IF 1.71), 2006, Vol.28 (2-3), pp.337-359Springer
摘要:We discuss the use of Padé-Legendre interpolants as an approach for the postprocessing of data contaminated by Gibbs oscillations. A fast interpolation based reconstruction is proposed and its excellent performance illustrated on several problems. Almost non-oscillatory beha...
作者:S. Abarbanel , D. Gottlieb , J. S. Hesthaven
来源:[J].Journal of Scientific Computing(IF 1.71), 2006, Vol.28 (2-3), pp.125-137Springer
摘要:In this paper we present a new set of non-linear PML equations for the multi-dimensional Maxwell’s equation and show that they are strongly well posed and temporally stable. Numerical examples demonstrate the validity of the new method.
作者:I. Fatkullin , J. S. Hesthaven
来源:[J].Journal of Scientific Computing(IF 1.71), 2001, Vol.16 (1), pp.47-67Springer
摘要:Abstract(#br)We discuss a scheme for the numerical solution of one-dimensional initial value problems exhibiting strongly localized solutions or finite-time singularities. To accurately and efficiently model such phenomena we present a full space-time adaptive scheme, based on a ...
作者:J. S. Hesthaven , Y. Liang
来源:[J].Computational Geosciences(IF 1.422), 2015, Vol.19 (4), pp.965-978Springer
摘要:Abstract(#br)Discontinuous Galerkin (DG) method is presented for numerical modeling of melt migration in a chemically reactive and viscously deforming upwelling mantle column at local chemical equilibrium. DG methods for both advection and elliptic equations provide a robust and ...
作者:S. Abarbanel , D. Gottlieb , J. S. Hesthaven
来源:[J].Journal of Scientific Computing(IF 1.71), 2002, Vol.17 (1-4), pp.405-422Springer
摘要:Abstract(#br)We investigate the long time behavior of two unsplit PML methods for the absorption of electromagnetic waves. Computations indicate that both methods suffer from a temporal instability after the fields reach a quiescent state. The analysis reveals that the source of ...
作者:... N. Skivesen , J. S. Hesthaven , P. M. Johansen
来源:[J].Applied Physics B(IF 1.782), 2005, Vol.81 (1), pp.65-73Springer
摘要:Abstract(#br)The in-coupling process for grating-coupled planar optical waveguide sensors is investigated in the case of TE waves. A simple analytical model based on the Rayleigh–Fourier–Kiselev method is applied to take into account the depth of the grating coupler, which i...
作者:J. S. Hesthaven , J. P. Lynov ...
来源:[J].Physics of Fluids(IF 1.942), 1995, Vol.7 (9), pp.2220-2229CrossRef

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