Raytcho Lazarov: search on Z-Library

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1

The Galerkin finite element method for a multi-term time-fractional diffusion equation

Jin, Bangti, Lazarov, Raytcho, Liu, Yikan, Zhou, Zhi

Journal:

Journal of Computational Physics

Year:

2015

Language:

english

File:

PDF, 833 KB

english, 2015

2

Variational formulation of problems involving fractional order differential operators

Jin, Bangti, Lazarov, Raytcho, Pasciak, Joseph, Rundell, William

Journal:

Mathematics of Computation

Year:

2015

Language:

english

File:

PDF, 1.00 MB

english, 2015

3

Least-squares for second-order elliptic problems

James H. Bramble, Raytcho D. Lazarov, Joseph E. Pasciak

Journal:

Computer Methods in Applied Mechanics and Engineering

Year:

1998

Language:

english

File:

PDF, 1.17 MB

english, 1998

4

Numerical well model for non-Darcy flow through isotropic porous media[*]This work was supported in part by the EPA under grant # R 825207-01-1, by the State of Texas under ARP/ATP grant # 010366-168 and by a gift grant from Mobil Oil Corp.

Richard E. Ewing, Raytcho D. Lazarov, Steve L. Lyons, Dimitrios V. Papavassiliou, Joseph Pasciak, Guan Qin

Journal:

Computational Geosciences

Year:

1999

Language:

english

File:

PDF, 172 KB

english, 1999

5

Error Analysis of a Finite Element Method for the Space-Fractional Parabolic Equation

Jin, Bangti, Lazarov, Raytcho, Pasciak, Joseph, Zhou, Zhi

Journal:

SIAM Journal on Numerical Analysis

Year:

2014

Language:

english

File:

PDF, 433 KB

english, 2014

6

Finite volume element approximations of nonlocal reactive flows in porous media

Richard Ewing, Raytcho Lazarov, Yanping Lin

Journal:

Numerical Methods for Partial Differential Equations

Year:

2000

Language:

english

File:

PDF, 234 KB

english, 2000

7

Stabilized discontinuous finite element approximations for Stokes equations

Raytcho Lazarov, Xiu Ye

Journal:

Journal of Computational and Applied Mathematics

Year:

2007

Language:

english

File:

PDF, 273 KB

english, 2007

8

Least-squares methods for linear elasticity based on a discrete minus one inner product

James H. Bramble, Raytcho D. Lazarov, Joseph E. Pasciak

Journal:

Computer Methods in Applied Mechanics and Engineering

Year:

2001

Language:

english

File:

PDF, 182 KB

english, 2001

9

Some new error estimates of a semidiscrete finite volume element method for a parabolic integro-differential equation with nonsmooth initial data

Sinha, Rajen K., Ewing, Richard E., Lazarov, Raytcho D.

Journal:

SIAM Journal on Numerical Analysis

Year:

2006

Language:

english

File:

PDF, 247 KB

english, 2006

10

A least-squares approach based on a discrete minus one inner product for first order systems

Bramble, James H., Lazarov, Raytcho D., Pasciak, Joseph E.

Journal:

Mathematics of Computation

Year:

1997

Language:

english

File:

PDF, 319 KB

english, 1997

11

Some Error Estimates for the Finite Volume Element Method for a Parabolic Problem

Chatzipantelidis, Panagiotis, Lazarov, Raytcho, Thomée, Vidar

Journal:

Computational Methods in Applied Mathematics

Year:

2013

Language:

english

File:

PDF, 711 KB

english, 2013

12

A Multiscale HDG Method for Second Order Elliptic Equations. Part I. Polynomial and Homogenization-Based Multiscale Spaces

Efendiev, Yalchin, Lazarov, Raytcho, Shi, Ke

Journal:

SIAM Journal on Numerical Analysis

Year:

2015

Language:

english

File:

PDF, 340 KB

english, 2015

13

A Petrov--Galerkin Finite Element Method for Fractional Convection-Diffusion Equations

Jin, Bangti, Lazarov, Raytcho, Zhou, Zhi

Journal:

SIAM Journal on Numerical Analysis

Year:

2016

Language:

english

File:

PDF, 280 KB

english, 2016

14

Numerical methods for time-fractional evolution equations with nonsmooth data: A concise overview

Jin, Bangti, Lazarov, Raytcho, Zhou, Zhi

Journal:

Computer Methods in Applied Mechanics and Engineering

Year:

2018

Language:

english

File:

PDF, 795 KB

english, 2018

15

Preconditioning Mixed Finite Element Saddle-point Elliptic Problems

Panayot S. Vassilevski, Raytcho D. Lazarov

Journal:

Numerical Linear Algebra with Applications

Year:

1996

Language:

english

File:

PDF, 899 KB

english, 1996

16

Multilevel Preconditioners for Mixed Methods for Second Order Elliptic Problems

Zhangxin Chen, Richard E. Ewing, Raytcho D. Lazarov, Serguei Maliassov, Yuri A. Kuznetsov

Journal:

Numerical Linear Algebra with Applications

Year:

1996

Language:

english

File:

PDF, 1.09 MB

english, 1996

17

Iterative solution of a coupled mixed and standard Galerkin discretization method for elliptic problems

Raytcho D. Lazarov, Joseph E. Pasciak, Panayot S. Vassilevski

Journal:

Numerical Linear Algebra with Applications

Year:

2001

Language:

english

File:

PDF, 156 KB

english, 2001

18

On the occasion of the sixtieth birthday of Richard E. Ewing

Raytcho Lazarov, Joseph Pasciak, Guan Qin

Journal:

Numerical Linear Algebra with Applications

Year:

2006

Language:

english

File:

PDF, 27 KB

english, 2006

19

Two-level preconditioning of discontinuous Galerkin approximations of second-order elliptic equations

Veselin A. Dobrev, Raytcho D. Lazarov, Panayot S. Vassilevski, Ludmil T. Zikatanov

Journal:

Numerical Linear Algebra with Applications

Year:

2006

Language:

english

File:

PDF, 193 KB

english, 2006

20

On convergence of certain finite volume difference discretizations for 1D poroelasticity interface problems

Richard E. Ewing, Oleg P. Iliev, Raytcho D. Lazarov, Anna Naumovich

Journal:

Numerical Methods for Partial Differential Equations

Year:

2007

Language:

english

File:

PDF, 259 KB

english, 2007

21

Functional a posteriori error estimates for discontinuous Galerkin approximations of elliptic problems

Raytcho Lazarov, Sergey Repin, Satyendra K. Tomar

Journal:

Numerical Methods for Partial Differential Equations

Year:

2009

Language:

english

File:

PDF, 261 KB

english, 2009

22

On the balancing principle for some problems of Numerical Analysis

Raytcho D. Lazarov, Shuai Lu, Sergei V. Pereverzev

Journal:

Numerische Mathematik

Year:

2007

Language:

english

File:

PDF, 554 KB

english, 2007

23

Superconvergence of mixed finite element methods for parabolic problems with nonsmooth initial data

Hongsen Chen, Richard Ewing, Raytcho Lazarov

Journal:

Numerische Mathematik

Year:

1998

Language:

english

File:

PDF, 242 KB

english, 1998

24

Fast numerical upscaling of heat equation for fibrous materials

Oleg Iliev, Raytcho Lazarov, Joerg Willems

Journal:

Computing and Visualization in Science

Year:

2010

Language:

english

File:

PDF, 1016 KB

english, 2010

25

A Posteriori Error Estimates for Finite Volume Element Approximations of Convection–Diffusion–Reaction Equations

Raytcho Lazarov, Stanimire Tomov

Journal:

Computational Geosciences

Year:

2002

Language:

english

File:

PDF, 348 KB

english, 2002

26

Introduction Special Issue on Locally Conservative Numerical Methods for Flow in Porous Media

Michael G. Edwards, Raytcho D. Lazarov, Ivan Yotov

Journal:

Computational Geosciences

Year:

2002

Language:

english

File:

PDF, 19 KB

english, 2002

27

Unified Hybridization of Discontinuous Galerkin, Mixed, and Continuous Galerkin Methods for Second Order Elliptic Problems

Cockburn, Bernardo, Gopalakrishnan, Jayadeep, Lazarov, Raytcho

Journal:

SIAM Journal on Numerical Analysis

Year:

2009

Language:

english

File:

PDF, 577 KB

english, 2009

28

Mixed Finite Element Approximations of Parabolic Integro-Differential Equations with Nonsmooth Initial Data

Sinha, Rajen K., Ewing, Richard E., Lazarov, Raytcho D.

Journal:

SIAM Journal on Numerical Analysis

Year:

2009

Language:

english

File:

PDF, 263 KB

english, 2009

29

Domain Decomposition Type Iterative Techniques for Parabolic Problems on Locally Refined Grids

Ewing, Richard E., Lazarov, Raytcho D., Pasciak, Joseph E., Vassilevski, Panayot S.

Journal:

SIAM Journal on Numerical Analysis

Year:

1993

Language:

english

File:

PDF, 2.06 MB

english, 1993

30

Finite Difference Scheme for Parabolic Problems on Composite Grids with Refinement in Time and Space

Ewing, Richard E., Lazarov, Raytcho D., Vassilev, Apostol T.

Journal:

SIAM Journal on Numerical Analysis

Year:

1994

Language:

english

File:

PDF, 1.70 MB

english, 1994

31

Multiplier Spaces for the Mortar Finite Element Method in Three Dimensions

Kim, Chisup, Lazarov, Raytcho D., Pasciak, Joseph E., Vassilevski, Panayot S.

Journal:

SIAM Journal on Numerical Analysis

Year:

2001

Language:

english

File:

PDF, 251 KB

english, 2001

32

Error Estimates for a Semidiscrete Finite Element Method for Fractional Order Parabolic Equations

Jin, Bangti, Lazarov, Raytcho, Zhou, Zhi

Journal:

SIAM Journal on Numerical Analysis

Year:

2013

Language:

english

File:

PDF, 362 KB

english, 2013

33

Domain Decomposition Type Iterative Techniques for Parabolic Problems on Locally Refined Grids

Richard E. Ewing, Raytcho D. Lazarov, Joseph E. Pasciak and Panayot S. Vassilevski

Journal:

SIAM Journal on Numerical Analysis

Year:

1993

Language:

english

File:

PDF, 484 KB

english, 1993

34

Finite Difference Scheme for Parabolic Problems on Composite Grids with Refinement in Time and Space

Richard E. Ewing, Raytcho D. Lazarov and Apostol T. Vassilev

Journal:

SIAM Journal on Numerical Analysis

Year:

1994

Language:

english

File:

PDF, 1.38 MB

english, 1994

35

A First Course in the Numerical Analysis of Differential Equations.by Arieh Iserles

Review by: Raytcho Lazarov

Journal:

Year:

1997

Language:

english

File:

PDF, 319 KB

english, 1997

36

A simple finite element method for boundary value problems with a Riemann–Liouville derivative

Jin, Bangti, Lazarov, Raytcho, Lu, Xiliang, Zhou, Zhi

Journal:

Journal of Computational and Applied Mathematics

Year:

2015

Language:

english

File:

PDF, 354 KB

english, 2015

37

An analysis of the Rayleigh–Stokes problem for a generalized second-grade fluid

Bazhlekova, Emilia, Jin, Bangti, Lazarov, Raytcho, Zhou, Zhi

Journal:

Numerische Mathematik

Year:

2015

Language:

english

File:

PDF, 478 KB

english, 2015

38

Robust Two-level Domain Decomposition Preconditioners for High-contrast Anisotropic Flows in Multiscale Media

Efendiev, Yalchin, Galvis, Juan, Lazarov, Raytcho, Margenov, Svetozar, Ren, Jun

Journal:

Computational Methods in Applied Mathematics

Year:

2012

Language:

english

File:

PDF, 596 KB

english, 2012

39

A spectral multiscale hybridizable discontinuous Galerkin method for second order elliptic problems

Efendiev, Yalchin, Lazarov, Raytcho, Moon, Minam, Shi, Ke

Journal:

Computer Methods in Applied Mechanics and Engineering

Year:

2015

Language:

english

File:

PDF, 1.59 MB

english, 2015

40

Domain Decomposition Algorithms for Mixed Methods for Second-Order Ellipt Problems

Zhangxin Chen, Richard E. Ewing and Raytcho Lazarov

Journal:

Mathematics of Computation

Year:

1996

Language:

english

File:

PDF, 551 KB

english, 1996

41

Multiplier Spaces for the Mortar Finite Element Method in Three Dimensions

Chisup Kim, Raytcho D. Lazarov, Joseph E. Pasciak and Panayot S. Vassilevski

Journal:

SIAM Journal on Numerical Analysis

Year:

2002

Language:

english

File:

PDF, 561 KB

english, 2002

42

Some New Error Estimates of a Semidiscrete Finite Volume Element Method for a Parabolic Integro-Differential Equation with Nonsmooth Initial Data

Rajen K. Sinha, Richard E. Ewing and Raytcho D. Lazarov

Journal:

SIAM Journal on Numerical Analysis

Year:

2006

Language:

english

File:

PDF, 1.42 MB

english, 2006

43

UNIFIED HYBRIDIZATION OF DISCONTINUOUS GALERKIN, MIXED, AND CONTINUOUS GALERKIN METHODS FOR SECOND ORDER ELLIPTIC PROBLEMS

BERNARDO COCKBURN, JAYADEEP GOPALAKRISHNAN and RAYTCHO LAZAROV

Journal:

SIAM Journal on Numerical Analysis

Year:

2009

Language:

english

File:

PDF, 3.93 MB

english, 2009

44

MIXED FINITE ELEMENT APPROXIMATIONS OF PARABOLIC INTEGRO-DIFFERENTIAL EQUATIONS WITH NONSMOOTH INITIAL DATA

RAJEN K. SINHA, RICHARD E. EWING and RAYTCHO D. LAZAROV

Journal:

SIAM Journal on Numerical Analysis

Year:

2009

Language:

english

File:

PDF, 1.46 MB

english, 2009

45

10.2307/4100111

Review by: Raytcho Lazarov

Journal:

Mathematics of Computation

Year:

2005

Language:

english

File:

PDF, 175 KB

english, 2005

46

Two Fully Discrete Schemes for Fractional Diffusion and Diffusion-Wave Equations with Nonsmooth Data

Jin, Bangti, Lazarov, Raytcho, Zhou, Zhi

Journal:

SIAM Journal on Scientific Computing

Year:

2016

Language:

english

File:

PDF, 1.59 MB

english, 2016

47

Error Estimates for Approximations of Distributed Order Time Fractional Diffusion with Nonsmooth Data

Jin, Bangti, Lazarov, Raytcho, Sheen, Dongwoo, Zhou, Zhi

Journal:

Fractional Calculus and Applied Analysis

Year:

2016

Language:

english

File:

PDF, 444 KB

english, 2016

48

A Least-Squares Approach Based on a Discrete Minus One Inner Product for First Order Systems

James H. Bramble, Raytcho D. Lazarov and Joseph E. Pasciak

Journal:

Mathematics of Computation

Year:

1997

Language:

english

File:

PDF, 2.36 MB

english, 1997

49

Geometric Multigrid for Darcy and Brinkman models of flows in highly heterogeneous porous media: A numerical study

Kanschat, Guido, Lazarov, Raytcho, Mao, Youli

Journal:

Journal of Computational and Applied Mathematics

Year:

2016

Language:

english

File:

PDF, 2.49 MB

english, 2016

50

Multiscale direction-splitting algorithms for parabolic equations with highly heterogeneous coefficients

Srinivasan, Shriram, Lazarov, Raytcho, Minev, Peter

Journal:

Computers & Mathematics with Applications

Year:

2016

Language:

english

File:

PDF, 2.53 MB

english, 2016