Svetozar Margenov

109 papers A 1Journal 42Unranked 49
YearRankTypeTitle / Venue / Authors
2025 J jnl
In Memoriam of Raytcho Lazarov.
Comput. Methods Appl. Math.
Oleg P. Iliev, Svetozar Margenov
2024 — ed.
Large-Scale Scientific Computations - 14th International Conference, LSSC 2023, Sozopol, Bulgaria, June 5-9, 2023, Revised Selected Papers
LSSC
Ivan Lirkov, Svetozar Margenov
2024 J jnl
Performance Analysis and Parallel Scalability of Numerical Methods for Fractional-in-Space Diffusion Problems with Adaptive Time Stepping.
Algorithms
Svetozar Margenov, Dimitar Slavchev
2023 — conf
Parametric Analysis of Space-Time Fractional Pennes Bioheat Model Using a Collocation Method Based on Radial Basis Functions and Chebyshev Polynomials.
LSSC
Hitesh Bansu, Svetozar Margenov
2023 — conf
Study of Sparsification Schemes for the FEM Stiffness Matrix of Fractional Diffusion Problems.
LSSC
Dimitar Slavchev, Svetozar Margenov
2022 — ed.
Large-Scale Scientific Computing - 13th International Conference, LSSC 2021, Sozopol, Bulgaria, June 7-11, 2021, Revised Selected Papers
LSSC
Ivan Lirkov, Svetozar Margenov
2022 — conf
On the Application of a Hierarchically Semi-separable Compression for Space-Fractional Parabolic Problems with Varying Time Steps.
NMA
Dimitar Slavchev, Svetozar Margenov
2021 J jnl
Neumann fractional diffusion problems: BURA solution methods and algorithms.
Math. Comput. Simul.
Stanislav Harizanov, Nikola Kosturski, Svetozar Margenov, Yavor Vutov
2021 — conf
Performance Study of Hierarchical Semi-separable Compression Solver for Parabolic Problems with Space-Fractional Diffusion.
LSSC
Dimitar Slavchev, Svetozar Margenov
2021 — conf
Reduced Sum Implementation of the BURA Method for Spectral Fractional Diffusion Problems.
LSSC
Stanislav Harizanov, Nikola Kosturski, Ivan Lirkov, Svetozar Margenov, Yavor Vutov
2021 J jnl
Reduced Sum Implementation of the BURA Method for Spectral Fractional Diffusion Problems.
CoRR
Stanislav Harizanov, Nikola Kosturski, Ivan Lirkov, Svetozar Margenov, Yavor Vutov
2020 J jnl
A Survey on Numerical Methods for Spectral Space-Fractional Diffusion Problems.
CoRR
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov
2020 J jnl
Analysis of numerical methods for spectral fractional elliptic equations based on the best uniform rational approximation.
J. Comput. Phys.
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov, Pencho Marinov, Joseph E. Pasciak
2020 — ed.
Large-Scale Scientific Computing - 12th International Conference, LSSC 2019, Sozopol, Bulgaria, June 10-14, 2019, Revised Selected Papers
LSSC
Ivan Lirkov, Svetozar Margenov
2020 J jnl
Numerical solution of fractional diffusion-reaction problems based on BURA.
Comput. Math. Appl.
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov, Pencho Marinov
2020 J jnl
Spectral Fractional Laplacian with Inhomogeneous Dirichlet Data: Questions, Problems, Solutions.
CoRR
Stanislav Harizanov, Svetozar Margenov, Nedyu Popivanov
2019 — ch.
Applications for ultrascale systems.
Ultrascale Computing Systems
Svetozar Margenov, Thomas Rauber, Emanouil I. Atanassov, Francisco Almeida, Vicente Blanco Pérez, Raimondas Ciegis, Alberto Cabrera Pérez, Neki Frasheri, Stanislav Harizanov, Rima Kriauziene, Gudula Rünger, Pablo San Segundo, Adimas Starikovicius, Sándor Szabó, Bogdán Zaválnij
2019 J jnl
Scalability analysis of different parallel solvers for 3D fractional power diffusion problems.
Concurr. Comput. Pract. Exp.
Raimondas Ciegis, Vadimas Starikovicius, Svetozar Margenov, Rima Kriauziene
2019 J jnl
The Best Uniform Rational Approximation: Applications to Solving Equations Involving Fractional powers of Elliptic Operators.
CoRR
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov, Pencho Marinov
2018 — conf
Analysis of Hierarchical Compression Parallel Solver for BEM Problems on Intel Xeon CPUs.
NMA
Dimitar Slavchev, Svetozar Margenov
2018 — ed.
Large-Scale Scientific Computing - 11th International Conference, LSSC 2017, Sozopol, Bulgaria, June 5-9, 2017, Revised Selected Papers
LSSC
Ivan Lirkov, Svetozar Margenov
2018 J jnl
Optimal solvers for linear systems with fractional powers of sparse SPD matrices.
Numer. Linear Algebra Appl.
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov, Pencho Marinov, Yavor Vutov
2017 — conf
A Comparison of Accuracy and Efficiency of Parallel Solvers for Fractional Power Diffusion Problems.
PPAM (1)
Raimondas Ciegis, Vadimas Starikovicius, Svetozar Margenov, Rima Kriauziene
2017 J jnl
Numerical algorithms for scientific and engineering applications.
J. Comput. Appl. Math.
Zahari Zlatev, Ivan Dimov, Krassimir Georgiev, Svetozar Margenov
2017 J jnl
Numerical methods and parallel algorithms for computation of periodic responses of plates.
J. Comput. Appl. Math.
Stanislav Stoykov, Svetozar Margenov
2017 J jnl
Parallel solvers for fractional power diffusion problems.
Concurr. Comput. Pract. Exp.
Raimondas Ciegis, Vadimas Starikovicius, Svetozar Margenov, Rima Kriauziene
2017 — conf
Performance Analysis of MG Preconditioning on Intel Xeon Phi: Towards Scalability for Extreme Scale Problems with Fractional Laplacians.
LSSC
Nikola Kosturski, Svetozar Margenov, Yavor Vutov
2017 J jnl
Volume constrained 2-phase segmentation method utilizing a linear system solver based on the best uniform polynomial approximation of x
J. Comput. Appl. Math.
Stanislav Harizanov, Svetozar Margenov, Pencho Marinov, Yavor Vutov
2016 J jnl
Preconditioning Heterogeneous H(div) Problems by Additive Schur Complement Approximation and Applications.
SIAM J. Sci. Comput.
Johannes K. Kraus, Raytcho D. Lazarov, Maria Lymbery, Svetozar Margenov, Ludmil T. Zikatanov
2016 J jnl
Scalable parallel implementation of shooting method for large-scale dynamical systems. Application to bridge components.
J. Comput. Appl. Math.
Stanislav Stoykov, Svetozar Margenov
2015 J jnl
An analytical coarse grid operator applied to a multiscale multigrid method.
J. Comput. Appl. Math.
Rosangela F. Sviercoski, Peter Popov, Svetozar Margenov
2015 J jnl
Applications for ultrascale computing.
Supercomput. Front. Innov.
Milan Mihajlovic, Lars Ailo Bongo, Raimondas Ciegis, Neki Frasheri, Dragi Kimovski, Peter G. Kropf, Svetozar Margenov, Maya G. Neytcheva, Thomas Rauber, Gudula Rünger, Roman Trobec, Roel Wuyts, Roman Wyrzykowski, Jing Gong
2015 J jnl
Auxiliary space multigrid method based on additive Schur complement approximation.
Numer. Linear Algebra Appl.
Johannes Kraus, Maria Lymbery, Svetozar Margenov
2015 — conf
Fast Constrained Image Segmentation Using Optimal Spanning Trees.
LSSC
Stanislav Harizanov, Svetozar Margenov, Ludmil T. Zikatanov
2015 — conf
Performance Analysis of Block AMG Preconditioning of Poroelasticity Equations.
LSSC
Nikola Kosturski, Svetozar Margenov, Peter Popov, Nikola Simeonov, Yavor Vutov
2015 — conf
Scalability of Shooting Method for Nonlinear Dynamical Systems.
LSSC
Stanislav Stoykov, Svetozar Margenov
2015 — conf
Space discretization by B-Splines on discontinuous problems in structural mechanics.
BCI
Stanislav Stoykov, Stanislav Harizanov, Svetozar Margenov
2015 — conf
Thermoelectrical Tick Removal Process Modeling.
LSSC
Nikola Kosturski, Ivan Lirkov, Svetozar Margenov, Yavor Vutov
2014 — conf
Isogeometric Analysis for Nonlinear Dynamics of Timoshenko Beams.
NMA
Stanislav Stoykov, Clemens Hofreither, Svetozar Margenov
2014 — ed.
Large-Scale Scientific Computing - 9th International Conference, LSSC 2013, Sozopol, Bulgaria, June 3-7, 2013. Revised Selected Papers
LSSC
Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski
2014 — conf
Numerical Homogenization of Epoxy-Clay Composite Materials.
NMA
Ivan Georgiev, Evgeni Ivanov, Svetozar Margenov, Yavor Vutov
2014 J jnl
Numerical computation of periodic responses of nonlinear large-scale systems by shooting method.
Comput. Math. Appl.
Stanislav Stoykov, Svetozar Margenov
2014 J jnl
Robust multilevel methods for quadratic finite element anisotropic elliptic problems.
Numer. Linear Algebra Appl.
Johannes Kraus, Maria Lymbery, Svetozar Margenov
2014 J jnl
Semi-coarsening AMLI preconditioning of anisotropic trilinear FEM systems.
Comput. Math. Appl.
Ivan Georgiev, Svetozar Margenov
2013 — conf
Calibration of Parameters for Radio-Frequency Ablation Simulation.
LSSC
Nikola Kosturski, Svetozar Margenov, Yavor Vutov
2013 — ch.
Multiscale Domain Decomposition Preconditioners for Anisotropic High-Contrast Problems.
Domain Decomposition Methods in Science and Engineering XX
Yalchin Efendiev, Juan Galvis, Raytcho D. Lazarov, Svetozar Margenov, Jun Ren
2013 — conf
Nonlinear Forced Vibration Analysis of Elastic Structures by Using Parallel Solvers for Large-Scale Systems.
LSSC
Stanislav Stoykov, Svetozar Margenov
2013 — conf
Numerical Homogenization of Heterogeneous Anisotropic Linear Elastic Materials.
LSSC
Svetozar Margenov, Stanislav Stoykov, Yavor Vutov
2013 — conf
Parallel algorithms for adaptive time-stepping in radiofrequency liver ablation simulation: implementation on an IBM Blue Gene/P computer.
FedCSIS (Position Papers)
Krassimir Georgiev, Nikola Kosturski, Svetozar Margenov, Yavor Vutov
2012 — ed.
Large-Scale Scientific Computing - 8th International Conference, LSSC 2011, Sozopol, Bulgaria, June 6-10, 2011, Revised Selected Papers
LSSC
Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski
2012 J jnl
Multilevel preconditioning of graph-Laplacians: Polynomial approximation of the pivot blocks inverses.
Math. Comput. Simul.
Petia T. Boyanova, Ivan Georgiev, Svetozar Margenov, Ludmil T. Zikatanov
2012 J jnl
Robust Two-level Domain Decomposition Preconditioners for High-contrast Anisotropic Flows in Multiscale Media.
Comput. Methods Appl. Math.
Yalchin Efendiev, Juan Galvis, Raytcho D. Lazarov, Svetozar Margenov, Jun Ren
2011 — conf
Balancing the Communications and Computations in Parallel FEM Simulations on Unstructured Grids.
PPAM (2)
Nikola Kosturski, Svetozar Margenov, Yavor Vutov
2011 — conf
Improving the Efficiency of Parallel FEM Simulations on Voxel Domains.
LSSC
Nikola Kosturski, Svetozar Margenov, Yavor Vutov
2011 — conf
On the Robustness of Two-Level Preconditioners for Quadratic FE Orthotropic Elliptic Problems.
LSSC
Johannes Kraus, Maria Lymbery, Svetozar Margenov
2010 — conf
Analysis of the CBS Constant for Quadratic Finite Elements.
NMA
Ivan Georgiev, Maria Lymbery, Svetozar Margenov
2010 — conf
Finite Volume Discretization of Equations Describing Nonlinear Diffusion in Li-Ion Batteries.
NMA
Peter Popov, Yavor Vutov, Svetozar Margenov, Oleg Iliev
2010 — ed.
Large-Scale Scientific Computing, 7th International Conference, LSSC 2009, Sozopol, Bulgaria, June 4-8, 2009. Revised Papers
LSSC
Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski
2010 J jnl
Robust AMLI methods for parabolic Crouzeix-Raviart FEM systems.
J. Comput. Appl. Math.
Petia T. Boyanova, Svetozar Margenov, Maya G. Neytcheva
2010 J jnl
Special Issue on Advanced Computational Algorithms: Introduction.
J. Comput. Appl. Math.
István Faragó, Ágnes Havasi, Svetozar Margenov, Zahari Zlatev
2009 — conf
Multilevel Preconditioning of Crouzeix-Raviart 3D Pure Displacement Elasticity Problems.
LSSC
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
2009 — ed.
Numerical Analysis and Its Applications, 4th International Conference, NAA 2008, Lozenetz, Bulgaria, June 16-20, 2008. Revised Selected Papers
NAA
Svetozar Margenov, Lubin G. Vulkov, Jerzy Wasniewski
2009 — conf
Numerical Homogenization of Bone Microstructure.
LSSC
Nikola Kosturski, Svetozar Margenov
2009 — conf
Numerical Study of AMLI Methods for Weighted Graph-Laplacians.
LSSC
Petia T. Boyanova, Svetozar Margenov
2009 — conf
Parallel MIC(0) Preconditioning for Numerical Upscaling of Anisotropic Linear Elastic Materials.
LSSC
Svetozar Margenov, Yavor Vutov
2008 — ed.
Large-Scale Scientific Computing, 6th International Conference, LSSC 2007, Sozopol, Bulgaria, June 5-9, 2007. Revised Papers
LSSC
Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski
2008 — conf
Multilevel Splitting of Weighted Graph-Laplacian Arising in Non-conforming Mixed FEM Elliptic Problems.
NAA
Petia T. Boyanova, Svetozar Margenov
2008 J jnl
Multilevel algorithms for Rannacher-Turek finite element approximation of 3D elliptic problems.
Computing
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
2008 J jnl
Multilevel preconditioning of rotated bilinear non-conforming FEM problems.
Comput. Math. Appl.
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
2008 J jnl
On the multilevel preconditioning of Crouzeix-Raviart elliptic problems.
Numer. Linear Algebra Appl.
Johannes Kraus, Svetozar Margenov, Josef Synka
2008 J jnl
Parallel MIC(0) preconditioning of 3D elliptic problems discretized by Rannacher-Turek finite elements.
Comput. Math. Appl.
Peter Arbenz, Svetozar Margenov, Yavor Vutov
2007 — conf
Agents as Resource Brokers in Grids - Forming Agent Teams.
LSSC
Wojciech Kuranowski, Marcin Paprzycki, Maria Ganzha, Maciej Gawinecki, Ivan Lirkov, Svetozar Margenov
2007 J jnl
CBS constants for multilevel splitting of graph-Laplacian and application to preconditioning of discontinuous Galerkin systems.
J. Complex.
Raytcho D. Lazarov, Svetozar Margenov
2007 — conf
Multilevel Preconditioning of Rotated Trilinear Non-conforming Finite Element Problems.
LSSC
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
2007 J jnl
On a MIC(0) preconditioning of non-conforming mixed FEM elliptic problems.
Math. Comput. Simul.
Svetozar Margenov, Peter D. Minev
2007 — conf
On the Numerical Solution of the Heat Transfer Equation in the Process of Freeze Drying.
LSSC
Krassimir Georgiev, Nikola Kosturski, Svetozar Margenov
2006 — conf
Benchmarking Performance of an MPI-based Solver for 3D Elasticity Problems.
John Vincent Atanasoff Symposium
Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki
2006 — conf
Comparative Analysis of Mesh Generators and MIC(0) Preconditioning of FEM Elasticity Systems.
Numerical Methods and Applications
Nikola Kosturski, Svetozar Margenov
2006 — conf
Generalized Aggregation-Based Multilevel Preconditioning of Crouzeix-Raviart FEM Elliptic Problems.
Numerical Methods and Applications
Svetozar Margenov, Josef Synka
2006 — ed.
Large-Scale Scientific Computing, 5th International Conference, LSSC 2005, Sozopol, Bulgaria, June 6-10, 2005, Revised Papers
LSSC
Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski
2006 — conf
Multilevel Preconditioning of 2D Rannacher-Turek FE Problems; Additive and Multiplicative Methods.
Numerical Methods and Applications
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
2005 — conf
Parallel PCG Solver for Nonconforming FE Problems: Overlapping of Communications and Computations.
LSSC
Gergana Bencheva, Svetozar Margenov, Jirí Starý
2005 J jnl
Robust optimal multilevel preconditioners for non-conforming finite element systems.
Numer. Linear Algebra Appl.
Radim Blaheta, Svetozar Margenov, Maya G. Neytcheva
2004 — conf
Aggregation-Based Multilevel Preconditioning of Non-conforming FEM Elasticity Problems.
PARA
Radim Blaheta, Svetozar Margenov, Maya G. Neytcheva
2004 — ed.
Large-Scale Scientific Computing, 4th International Conference, LSSC 2003, Sozopal, Bulgaria, June 4-8, 2003, Revised Papers
LSSC
Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski, Plamen Y. Yalamov
2004 J jnl
Uniform estimate of the constant in the strengthened CBS inequality for anisotropic non-conforming FEM systems.
Numer. Linear Algebra Appl.
Radim Blaheta, Svetozar Margenov, Maya G. Neytcheva
2003 — ed.
Numerical Methods and Applications, 5th International Conference, NMA 2002, Borovets, Bulgaria, August 20-24, 2002, Revised Papers
NMA
Ivan Dimov, Ivan Lirkov, Svetozar Margenov, Zahari Zlatev
2003 — conf
Two-Level Preconditioning of Crouzeix-Raviart Anisotropic FEM Systems.
LSSC
Gergana Bencheva, Ivan Georgiev, Svetozar Margenov
2002 — conf
On a Two-Level Parallel MIC(0) Preconditioning of Crouzeix-Raviart Non-conforming FEM Systems.
Numerical Methods and Application
Raytcho D. Lazarov, Svetozar Margenov
2001 — ed.
Large-Scale Scientific Computing, Third International Conference, LSSC 2001, Sozopol, Bulgaria, June 6-10, 2001, Revised Papers
LSSC
Svetozar Margenov, Jerzy Wasniewski, Plamen Y. Yalamov
2001 — conf
MIC(0) Preconditioning of Rotated Trilinear FEM Elliptic Systems.
LSSC
Ivan Georgiev, Svetozar Margenov
2000 — conf
AMLI Preconditioning of Pure Displacement Non-conforming Elasticity FEM Systems.
NAA
Tzanio V. Kolev, Svetozar Margenov
2000 — conf
Parallel Performance of a 3D Elliptic Solver.
NAA
Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki
1999 — ed.
Large-Scale Scientific Computation for Engineering and Environmental Problems, II (LSSC'99), Sozopol, Bulgaria, June 2-6, 1999
LSSC
Michael Griebel, Svetozar Margenov, Plamen Y. Yalamov
1999 — conf
Parallel Conjugate Gradient Method with Circulant Block-Factorization Preconditioners for 3D Elliptic Problems.
PP
Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki, J. McLaughlin
1999 J jnl
Two-level preconditioning of pure displacement non-conforming FEM systems.
Numer. Linear Algebra Appl.
Tzanio V. Kolev, Svetozar Margenov
1998 J jnl
An Introduction to Distributed Algorithms [Book Review].
IEEE Concurr.
Svetozar Margenov, Valmir Carneiro Barbosa
1997 — conf
A Shared Memory Parallel Implementation of Block-Circulant Preconditioners.
LSSC
Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki, R. Owens
1997 — conf
Algebraic Two-Level Preconditioning of Non-Conforming FEM Systems.
LSSC
Svetozar Margenov, Panayot S. Vassilevski
1997 — conf
BSR BILU Preconditioning for 3D Simulation of Pile Foundation Systems in Nonlinear Media.
LSSC
A. Georgiev, Svetozar Margenov
1997 J jnl
Circulant Block-Factorization Preconditioning of Anisotropic Elliptic Problems.
Computing
Ivan Lirkov, Svetozar Margenov, Ludmil T. Zikatanov
1997 — ed.
Large-Scale Scientific Computation for Engineering and Environmental Problems, LSSC'97, Varna, Bulgaria, 7-11 June 1997
LSSC
Michael Griebel, Oleg P. Iliev, Svetozar Margenov, Panayot S. Vassilevski
1997 J jnl
Performance of Block-ILU Factorization Preconditioners Based on Block-Size Reduction for 2D Elasticity Systems.
SIAM J. Sci. Comput.
Tony F. Chan, Svetozar Margenov, Panayot S. Vassilevski
1996 — conf
Displacement Decomposition Circulant Preconditioners for Almost Incompressible 2D Elasticity Systems.
WNAA
Ivan Lirkov, Svetozar Margenov
1996 — conf
Parallel Complexity of Conjugate Gradient Method with Circulant Preconditioners.
Parcella
Ivan Lirkov, Svetozar Margenov
1995 J jnl
Optimal algebraic multilevel preconditioning for local refinement along a line.
Numer. Linear Algebra Appl.
Svetozar Margenov, J. M. L. Maubach
1994 J jnl
Algebraic Multilevel Preconditioning of Anisotropic Elliptic Problems.
SIAM J. Sci. Comput.
Svetozar Margenov, Panayot S. Vassilevski
1994 J jnl
Circulant block-factorization preconditioners for elliptic problems.
Computing
Ivan Lirkov, Svetozar Margenov, Panayot S. Vassilevski
1987 A conf
Solving Elliptic Problems by the Domain Decomposition Method Using Proconditioning Matrices Derived by Multilevel Splitting of the Finite Element Matrix.
ICS
Raytcho D. Lazarov, Panayot S. Vassilevski, Svetozar Margenov