Finite difference schemes on grids with local refinement in time and space for parabolic problems I. Derivation, stability, and error analysis. - Richard E. Ewing; Raytcho D. Lazarov; Panayot S. Vassilevski (Computing, 1990)

Vector/parallel implementation of a porous media flow code. - Richard E. Ewing; Patrick O'Leary; James S. Sochacki (SC, 1991)

Well-Conditioned Iterative Schemes for Mixed Finite-Element Models of Porous-Media Flows. - Myron B. Allen; Richard E. Ewing; Peng Lu (SIAM J. Sci. Comput., 1992)

Domain Decomposition Methods for Problems with Partial Refinement. - James H. Bramble; Richard E. Ewing; Rossen R. Parashkevov; Joseph E. Pasciak (SIAM J. Sci. Comput., 1992)

Parallelization of Multiphase Models for Contaminant Transport in Porous Media. - Richard E. Ewing; Michael A. Celia; Patrick O'Leary; Joseph E. Pasciak; Apostol T. Vassilev (PPSC, 1993)

Distributed computation of wave propagation models using PVM. - Richard E. Ewing; Robert C. Sharpley; Derek Mitchum; Patrick O'Leary; James S. Sochacki (IEEE Parallel Distributed Technol. Syst. Appl., 1994)

Local refinement techniques for elliptic problems on cell-centered grids; II. Optimal order two-grid iterative methods. - Richard E. Ewing; Raytcho D. Lazarov; Panayot S. Vassilevski (Numer. Linear Algebra Appl., 1994)

Two-Level Local Refinement Preconditioners for Nonsymmetric and Indefinite Elliptic Problems. - Richard E. Ewing; Svetozara I. Petrova; Panayot S. Vassilevski (SIAM J. Sci. Comput., 1994)

The analysis of multigrid algorithms for cell centered finite difference methods. - James H. Bramble; Richard E. Ewing; Joseph E. Pasciak; Jian Shen (Adv. Comput. Math., 1996)

Domain decomposition algorithms for mixed methods for second-order elliptic problems. - Zhangxin Chen; Richard E. Ewing; Raytcho D. Lazarov (Math. Comput., 1996)

Multilevel Preconditioners for Mixed Methods for Second Order Elliptic Problems. - Zhangxin Chen; Richard E. Ewing; Raytcho D. Lazarov; Serguei Maliassov; Yuri A. Kuznetsov (Numer. Linear Algebra Appl., 1996)

An ELLAM Scheme for Advection-Diffusion Equations in Two Dimensions. - Hong Wang; Helge K. Dahle; Richard E. Ewing; Magne Espedal; Robert C. Sharpley; Shushuang Man (SIAM J. Sci. Comput., 1999)

Finite Volume Element Approximations of Nonlocal in Time One-Dimensional Flows in Porous Media. - Richard E. Ewing; Raytcho D. Lazarov; Yanping Lin (Computing, 2000)

Analysis of a Compositional Model for Fluid Flow in Porous Media. - Guan Qin; Richard E. Ewing; Zhangxin Chen (SIAM J. Appl. Math., 2000)

An Approximation to Miscible Fluid Flows in Porous Media with Point Sources and Sinks by an Eulerian-Lagrangian Localized Adjoint Method and Mixed Finite Element Methods. - Hong Wang; Dong Liang; Richard E. Ewing; Stephen L. Lyons; Guan Qin (SIAM J. Sci. Comput., 2000)

Degenerate two-phase incompressible flow III. Sharp error estimates. - Zhangxin Chen; Richard E. Ewing (Numerische Mathematik, 2001)

An ELLAM Scheme for Multidimensional Advection-Reaction Equations and Its Optimal-Order Error Estimate. - Hong Wang; Xiquan Shi; Richard E. Ewing (SIAM J. Numer. Anal., 2001)

A Modified Finite Volume Approximation of Second-Order Elliptic Equations with Discontinuous Coefficients. - Richard E. Ewing; Oleg P. Iliev; Raytcho D. Lazarov (SIAM J. Sci. Comput., 2001)

Degenerate two-phase incompressible flow V: characteristic finite element methods. - Zhangxin Chen; Richard E. Ewing; Qiaoyuan Jiang; Anna Maria Spagnuolo (J. Num. Math., 2002)

Error Analysis for Characteristics-Based Methods for Degenerate Parabolic Problems. - Zhangxin Chen; Richard E. Ewing; Qiaoyuan Jiang; Anna Maria Spagnuolo (SIAM J. Numer. Anal., 2002)

On the Accuracy of the Finite Volume Element Method Based on Piecewise Linear Polynomials. - Richard E. Ewing; Tao Lin 003; Yanping Lin (SIAM J. Numer. Anal., 2002)

Sharp L2-Error Estimates and Superconvergence of Mixed Finite Element Methods for Non-Fickian Flows in Porous Media. - Richard E. Ewing; Yanping Lin; Tong Sun; Junping Wang; Shuhua Zhang (SIAM J. Numer. Anal., 2002)

A New Superconvergence for Mixed Finite Element Approximations. - Richard E. Ewing; Mingjun Liu; Junping Wang (SIAM J. Numer. Anal., 2002)

Virtual Telemetry for Dynamic Data-Driven Application Simulations. - Craig C. Douglas; Yalchin Efendiev; Richard E. Ewing; Raytcho D. Lazarov; Martin J. Cole; Greg Jones; Chris R. Johnson 001 (International Conference on Computational Science, 2003)

Degenerate Two-Phase Incompressible Flow IV: Local Refinement and Domain Decomposition. - Zhangxin Chen; Richard E. Ewing (J. Sci. Comput., 2003)

A stabilized discontinuous finite element method for elliptic problems. - Richard E. Ewing; Junping Wang; Yongjun Yang (Numer. Linear Algebra Appl., 2003)

A Note on Data-Driven Contaminant Simulation. - Craig C. Douglas; Chad E. Shannon; Yalchin Efendiev; Richard E. Ewing; Victor Ginting; Raytcho D. Lazarov; Martin J. Cole; Greg Jones; Chris R. Johnson 001; Jennifer Simpson (International Conference on Computational Science, 2004)

Multiscale Interpolation, Backward in Time Error Analysis for Data-Driven Contaminant Simulation. - Craig C. Douglas; Yalchin Efendiev; Richard E. Ewing; Victor Ginting; Raytcho D. Lazarov; Martin J. Cole; Greg Jones; Chris R. Johnson 001 (International Conference on Computational Science (2), 2005)

Convergence Analysis of Wavelet Schemes for Convection-Reaction Equations under Minimal Regularity Assumptions. - Jiangguo Liu; Bojan Popov; Hong Wang; Richard E. Ewing (SIAM J. Numer. Anal., 2005)

Dynamic Contaminant Identification in Water. - Craig C. Douglas; J. Clay Harris; Mohamed Iskandarani; Chris R. Johnson 001; Robert A. Lodder; Steven G. Parker; Martin J. Cole; Richard E. Ewing; Yalchin Efendiev; Raytcho D. Lazarov; Guan Qin (International Conference on Computational Science (3), 2006)

Dynamic Data-Driven Application Systems for Empty Houses, Contaminat Tracking, and Wildland Fireline Prediction. - Craig C. Douglas; Divya Bansal; Jonathan D. Beezley; Lynn S. Bennethum; Soham Chakraborty 002; Janice L. Coen; Yalchin Efendiev; Richard E. Ewing; Jay Hatcher; Mohamed Iskandarani; Christopher R. Johnson 001; Deng Li; et al. (Grid-Based Problem Solving Environments, 2006)

DDDAS approaches to wildland fire modeling and contaminant tracking. - Craig C. Douglas; Robert A. Lodder; Richard E. Ewing; Yalchin Efendiev; Guan Qin; Janice L. Coen; Maurício Vieira Kritz; Jonathan D. Beezley; Jan Mandel; Mohamed Iskandarani; Anthony Vodacek; Gundolf Haase (WSC, 2006)

An Eulerian-Lagrangian Solution Technique for Single-Phase Compositional Flow in Three-Dimensional Porous Media. - Hong Wang 018; Weidong Zhao; Richard E. Ewing; Mohamed Al-Lawatia; Magne Espedal; Aleksey S. Telyakovskiy (Comput. Math. Appl., 2006)

Dynamic Data Driven Simulations in Stochastic Environments. - Craig C. Douglas; Yalchin Efendiev; Richard E. Ewing; Victor Ginting; Raytcho D. Lazarov (Computing, 2006)

Accurate multiscale finite element methods for two-phase flow simulations. - Yalchin Efendiev; Victor Ginting; Thomas Y. Hou 001; Richard E. Ewing (J. Comput. Phys., 2006)

Some new error estimates of a semidiscrete finite volume element method for a parabolic integro-differential equation with nonsmooth initial data. - Rajen Kumar Sinha; Richard E. Ewing; Raytcho D. Lazarov (SIAM J. Numer. Anal., 2006)

High-Precision BLAS on FPGA-enhanced Computers. - Chuan He 001; Guan Qin; Richard E. Ewing; Wei Zhao 001 (ERSA, 2007)

Dynamically Identifying and Tracking Contaminants in Water Bodies. - Craig C. Douglas; Martin J. Cole; Paul Dostert; Yalchin Efendiev; Richard E. Ewing; Gundolf Haase; Jay Hatcher; Mohamed Iskandarani; Chris R. Johnson 001; Robert A. Lodder (International Conference on Computational Science (1), 2007)

An efficient algorithm for characteristic tracking on two-dimensional triangular meshes. - Jiangguo Liu; Hongsen Chen; Richard E. Ewing; Guan Qin (Computing, 2007)

DDDAS Predictions for Water Spills. - Craig C. Douglas; Paul Dostert; Yalchin Efendiev; Richard E. Ewing; Deng Li; Robert A. Lodder (ICCS (3), 2008)

Improving predictions for water spills using DDDAS. - Craig C. Douglas; Yalchin Efendiev; Richard E. Ewing; Paul Dostert; Deng Li (IPDPS, 2008)

Mixed Finite Element Approximations of Parabolic Integro-Differential Equations with Nonsmooth Initial Data. - Rajen Kumar Sinha; Richard E. Ewing; Raytcho D. Lazarov (SIAM J. Numer. Anal., 2009)

A Simplified Method for Upscaling Composite Materials with High Contrast of the Conductivity. - Richard E. Ewing; Oleg Iliev 001; Raytcho D. Lazarov; Irina Rybak; Joerg Willems (SIAM J. Sci. Comput., 2009)

Least squares approach for initial data recovery in dynamic data-driven applications simulations. - Craig C. Douglas; Yalchin Efendiev; Richard E. Ewing; Victor Ginting; Raytcho D. Lazarov; Martin J. Cole; Greg Jones (Comput. Vis. Sci., 2010)

Reliable and efficient error control for an adaptive Galerkin-characteristic method for convection-dominated diffusion problems. - Ming Cui; Zhangxin Chen; Richard E. Ewing; Guan Qin; Hongsen Chen (Adv. Comput. Math., 2012)