Svetozar Margenov

Publication Activity (10 Years)

Years Active: 1987-2023
Publications (10 Years): 23

Top Topics

Numerical Methods

Dynamical Systems

Composite Materials

Top Venues

J. Comput. Appl. Math.

Publications

Dimitar Slavchev, Svetozar Margenov
Study of Sparsification Schemes for the FEM Stiffness Matrix of Fractional Diffusion Problems. LSSC (2023)
Hitesh Bansu, Svetozar Margenov
Parametric Analysis of Space-Time Fractional Pennes Bioheat Model Using a Collocation Method Based on Radial Basis Functions and Chebyshev Polynomials. LSSC (2023)
Dimitar Slavchev, Svetozar Margenov
On the Application of a Hierarchically Semi-separable Compression for Space-Fractional Parabolic Problems with Varying Time Steps. NMA (2022)
Stanislav Harizanov, Nikola Kosturski, Svetozar Margenov, Yavor Vutov
Neumann fractional diffusion problems: BURA solution methods and algorithms. Math. Comput. Simul. 189 (2021)
Stanislav Harizanov, Nikola Kosturski, Ivan Lirkov, Svetozar Margenov, Yavor Vutov
Reduced Sum Implementation of the BURA Method for Spectral Fractional Diffusion Problems. CoRR (2021)
Stanislav Harizanov, Nikola Kosturski, Ivan Lirkov, Svetozar Margenov, Yavor Vutov
Reduced Sum Implementation of the BURA Method for Spectral Fractional Diffusion Problems. LSSC (2021)
Dimitar Slavchev, Svetozar Margenov
Performance Study of Hierarchical Semi-separable Compression Solver for Parabolic Problems with Space-Fractional Diffusion. LSSC (2021)
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov, Pencho Marinov, Joseph E. Pasciak
Analysis of numerical methods for spectral fractional elliptic equations based on the best uniform rational approximation. J. Comput. Phys. 408 (2020)
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov
A Survey on Numerical Methods for Spectral Space-Fractional Diffusion Problems. CoRR (2020)
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov, Pencho Marinov
Numerical solution of fractional diffusion-reaction problems based on BURA. Comput. Math. Appl. 80 (2) (2020)
Stanislav Harizanov, Svetozar Margenov, Nedyu Popivanov
Spectral Fractional Laplacian with Inhomogeneous Dirichlet Data: Questions, Problems, Solutions. CoRR (2020)
Raimondas Ciegis, Vadimas Starikovicius, Svetozar Margenov, Rima Kriauziene
Scalability analysis of different parallel solvers for 3D fractional power diffusion problems. Concurr. Comput. Pract. Exp. 31 (19) (2019)
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov, Pencho Marinov
The Best Uniform Rational Approximation: Applications to Solving Equations Involving Fractional powers of Elliptic Operators. CoRR (2019)
Stanislav Harizanov, Raytcho D. Lazarov, Svetozar Margenov, Pencho Marinov, Yavor Vutov
Optimal solvers for linear systems with fractional powers of sparse SPD matrices. Numer. Linear Algebra Appl. 25 (5) (2018)
Dimitar Slavchev, Svetozar Margenov
Analysis of Hierarchical Compression Parallel Solver for BEM Problems on Intel Xeon CPUs. NMA (2018)
Nikola Kosturski, Svetozar Margenov, Yavor Vutov
Performance Analysis of MG Preconditioning on Intel Xeon Phi: Towards Scalability for Extreme Scale Problems with Fractional Laplacians. LSSC (2017)
Raimondas Ciegis, Vadimas Starikovicius, Svetozar Margenov, Rima Kriauziene
A Comparison of Accuracy and Efficiency of Parallel Solvers for Fractional Power Diffusion Problems. PPAM (1) (2017)
Zahari Zlatev, Ivan Dimov, Krassimir Georgiev, Svetozar Margenov
Numerical algorithms for scientific and engineering applications. J. Comput. Appl. Math. 310 (2017)
Stanislav Harizanov, Svetozar Margenov, Pencho Marinov, Yavor Vutov
. J. Comput. Appl. Math. 310 (2017)
Raimondas Ciegis, Vadimas Starikovicius, Svetozar Margenov, Rima Kriauziene
Parallel solvers for fractional power diffusion problems. Concurr. Comput. Pract. Exp. 29 (24) (2017)
Stanislav Stoykov, Svetozar Margenov
Numerical methods and parallel algorithms for computation of periodic responses of plates. J. Comput. Appl. Math. 310 (2017)
Johannes K. Kraus, Raytcho D. Lazarov, Maria Lymbery, Svetozar Margenov, Ludmil T. Zikatanov
Preconditioning Heterogeneous H(div) Problems by Additive Schur Complement Approximation and Applications. SIAM J. Sci. Comput. 38 (2) (2016)
Stanislav Stoykov, Svetozar Margenov
Scalable parallel implementation of shooting method for large-scale dynamical systems. Application to bridge components. J. Comput. Appl. Math. 293 (2016)
Stanislav Harizanov, Svetozar Margenov, Ludmil T. Zikatanov
Fast Constrained Image Segmentation Using Optimal Spanning Trees. LSSC (2015)
Nikola Kosturski, Ivan Lirkov, Svetozar Margenov, Yavor Vutov
Thermoelectrical Tick Removal Process Modeling. LSSC (2015)
Nikola Kosturski, Svetozar Margenov, Peter Popov, Nikola Simeonov, Yavor Vutov
Performance Analysis of Block AMG Preconditioning of Poroelasticity Equations. LSSC (2015)
Johannes Kraus, Maria Lymbery, Svetozar Margenov
Auxiliary space multigrid method based on additive Schur complement approximation. Numer. Linear Algebra Appl. 22 (6) (2015)
Stanislav Stoykov, Svetozar Margenov
Scalability of Shooting Method for Nonlinear Dynamical Systems. LSSC (2015)
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
Applications for ultrascale computing. Supercomput. Front. Innov. 2 (1) (2015)
Stanislav Stoykov, Stanislav Harizanov, Svetozar Margenov
Space discretization by B-Splines on discontinuous problems in structural mechanics. BCI (2015)
Rosangela F. Sviercoski, Peter Popov, Svetozar Margenov
An analytical coarse grid operator applied to a multiscale multigrid method. J. Comput. Appl. Math. 287 (2015)
Ivan Georgiev, Svetozar Margenov
Semi-coarsening AMLI preconditioning of anisotropic trilinear FEM systems. Comput. Math. Appl. 68 (12) (2014)
Stanislav Stoykov, Svetozar Margenov
Numerical computation of periodic responses of nonlinear large-scale systems by shooting method. Comput. Math. Appl. 67 (12) (2014)
Johannes Kraus, Maria Lymbery, Svetozar Margenov
Robust multilevel methods for quadratic finite element anisotropic elliptic problems. Numer. Linear Algebra Appl. 21 (3) (2014)
Ivan Georgiev, Evgeni Ivanov, Svetozar Margenov, Yavor Vutov
Numerical Homogenization of Epoxy-Clay Composite Materials. NMA (2014)
Stanislav Stoykov, Clemens Hofreither, Svetozar Margenov
Isogeometric Analysis for Nonlinear Dynamics of Timoshenko Beams. NMA (2014)
Nikola Kosturski, Svetozar Margenov, Yavor Vutov
Calibration of Parameters for Radio-Frequency Ablation Simulation. LSSC (2013)
Krassimir Georgiev, Nikola Kosturski, Svetozar Margenov, Yavor Vutov
Parallel algorithms for adaptive time-stepping in radiofrequency liver ablation simulation: implementation on an IBM Blue Gene/P computer. FedCSIS (Position Papers) (2013)
Svetozar Margenov, Stanislav Stoykov, Yavor Vutov
Numerical Homogenization of Heterogeneous Anisotropic Linear Elastic Materials. LSSC (2013)
Stanislav Stoykov, Svetozar Margenov
Nonlinear Forced Vibration Analysis of Elastic Structures by Using Parallel Solvers for Large-Scale Systems. LSSC (2013)
Yalchin Efendiev, Juan Galvis, Raytcho D. Lazarov, Svetozar Margenov, Jun Ren
Robust Two-level Domain Decomposition Preconditioners for High-contrast Anisotropic Flows in Multiscale Media. Comput. Methods Appl. Math. 12 (4) (2012)
Petia T. Boyanova, Ivan Georgiev, Svetozar Margenov, Ludmil T. Zikatanov
Multilevel preconditioning of graph-Laplacians: Polynomial approximation of the pivot blocks inverses. Math. Comput. Simul. 82 (10) (2012)
Nikola Kosturski, Svetozar Margenov, Yavor Vutov
Improving the Efficiency of Parallel FEM Simulations on Voxel Domains. LSSC (2011)
Nikola Kosturski, Svetozar Margenov, Yavor Vutov
Balancing the Communications and Computations in Parallel FEM Simulations on Unstructured Grids. PPAM (2) (2011)
Johannes Kraus, Maria Lymbery, Svetozar Margenov
On the Robustness of Two-Level Preconditioners for Quadratic FE Orthotropic Elliptic Problems. LSSC (2011)
István Faragó, Ágnes Havasi, Svetozar Margenov, Zahari Zlatev
Special Issue on Advanced Computational Algorithms: Introduction. J. Comput. Appl. Math. 235 (2) (2010)
Peter Popov, Yavor Vutov, Svetozar Margenov, Oleg Iliev
Finite Volume Discretization of Equations Describing Nonlinear Diffusion in Li-Ion Batteries. NMA (2010)
Petia T. Boyanova, Svetozar Margenov, Maya G. Neytcheva
Robust AMLI methods for parabolic Crouzeix-Raviart FEM systems. J. Comput. Appl. Math. 235 (2) (2010)
Ivan Georgiev, Maria Lymbery, Svetozar Margenov
Analysis of the CBS Constant for Quadratic Finite Elements. NMA (2010)
Nikola Kosturski, Svetozar Margenov
Numerical Homogenization of Bone Microstructure. LSSC (2009)
Svetozar Margenov, Yavor Vutov
Parallel MIC(0) Preconditioning for Numerical Upscaling of Anisotropic Linear Elastic Materials. LSSC (2009)
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
Multilevel Preconditioning of Crouzeix-Raviart 3D Pure Displacement Elasticity Problems. LSSC (2009)
Petia T. Boyanova, Svetozar Margenov
Numerical Study of AMLI Methods for Weighted Graph-Laplacians. LSSC (2009)
Peter Arbenz, Svetozar Margenov, Yavor Vutov
Parallel MIC(0) preconditioning of 3D elliptic problems discretized by Rannacher-Turek finite elements. Comput. Math. Appl. 55 (10) (2008)
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
Multilevel algorithms for Rannacher-Turek finite element approximation of 3D elliptic problems. Computing 82 (4) (2008)
Johannes Kraus, Svetozar Margenov, Josef Synka
On the multilevel preconditioning of Crouzeix-Raviart elliptic problems. Numer. Linear Algebra Appl. 15 (5) (2008)
Petia T. Boyanova, Svetozar Margenov
Multilevel Splitting of Weighted Graph-Laplacian Arising in Non-conforming Mixed FEM Elliptic Problems. NAA (2008)
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
Multilevel preconditioning of rotated bilinear non-conforming FEM problems. Comput. Math. Appl. 55 (10) (2008)
Svetozar Margenov, Peter D. Minev
On a MIC(0) preconditioning of non-conforming mixed FEM elliptic problems. Math. Comput. Simul. 76 (1-3) (2007)
Krassimir Georgiev, Nikola Kosturski, Svetozar Margenov
On the Numerical Solution of the Heat Transfer Equation in the Process of Freeze Drying. LSSC (2007)
Wojciech Kuranowski, Marcin Paprzycki, Maria Ganzha, Maciej Gawinecki, Ivan Lirkov, Svetozar Margenov
Agents as Resource Brokers in Grids - Forming Agent Teams. LSSC (2007)
Raytcho D. Lazarov, Svetozar Margenov
CBS constants for multilevel splitting of graph-Laplacian and application to preconditioning of discontinuous Galerkin systems. J. Complex. 23 (4-6) (2007)
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
Multilevel Preconditioning of Rotated Trilinear Non-conforming Finite Element Problems. LSSC (2007)
Ivan Georgiev, Johannes Kraus, Svetozar Margenov
Multilevel Preconditioning of 2D Rannacher-Turek FE Problems; Additive and Multiplicative Methods. Numerical Methods and Applications (2006)
Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki
Benchmarking Performance of an MPI-based Solver for 3D Elasticity Problems. John Vincent Atanasoff Symposium (2006)
Nikola Kosturski, Svetozar Margenov
Comparative Analysis of Mesh Generators and MIC(0) Preconditioning of FEM Elasticity Systems. Numerical Methods and Applications (2006)
Svetozar Margenov, Josef Synka
Generalized Aggregation-Based Multilevel Preconditioning of Crouzeix-Raviart FEM Elliptic Problems. Numerical Methods and Applications (2006)
Radim Blaheta, Svetozar Margenov, Maya G. Neytcheva
Robust optimal multilevel preconditioners for non-conforming finite element systems. Numer. Linear Algebra Appl. 12 (5-6) (2005)
Gergana Bencheva, Svetozar Margenov, Jirí Starý
Parallel PCG Solver for Nonconforming FE Problems: Overlapping of Communications and Computations. LSSC (2005)
Radim Blaheta, Svetozar Margenov, Maya G. Neytcheva
Aggregation-Based Multilevel Preconditioning of Non-conforming FEM Elasticity Problems. PARA (2004)
Radim Blaheta, Svetozar Margenov, Maya G. Neytcheva
Uniform estimate of the constant in the strengthened CBS inequality for anisotropic non-conforming FEM systems. Numer. Linear Algebra Appl. 11 (4) (2004)
Gergana Bencheva, Ivan Georgiev, Svetozar Margenov
Two-Level Preconditioning of Crouzeix-Raviart Anisotropic FEM Systems. LSSC (2003)
Raytcho D. Lazarov, Svetozar Margenov
On a Two-Level Parallel MIC(0) Preconditioning of Crouzeix-Raviart Non-conforming FEM Systems. Numerical Methods and Application (2002)
Ivan Georgiev, Svetozar Margenov
MIC(0) Preconditioning of Rotated Trilinear FEM Elliptic Systems. LSSC (2001)
Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki
Parallel Performance of a 3D Elliptic Solver. NAA (2000)
Tzanio V. Kolev, Svetozar Margenov
AMLI Preconditioning of Pure Displacement Non-conforming Elasticity FEM Systems. NAA (2000)
Tzanio V. Kolev, Svetozar Margenov
Two-level preconditioning of pure displacement non-conforming FEM systems. Numer. Linear Algebra Appl. 6 (7) (1999)
Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki, J. McLaughlin
Parallel Conjugate Gradient Method with Circulant Block-Factorization Preconditioners for 3D Elliptic Problems. PPSC (1999)
Svetozar Margenov, Valmir Carneiro Barbosa
An Introduction to Distributed Algorithms [Book Review]. IEEE Concurr. 6 (1) (1998)
A. Georgiev, Svetozar Margenov
BSR BILU Preconditioning for 3D Simulation of Pile Foundation Systems in Nonlinear Media. LSSC (1997)
Svetozar Margenov, Panayot S. Vassilevski
Algebraic Two-Level Preconditioning of Non-Conforming FEM Systems. LSSC (1997)
Tony F. Chan, Svetozar Margenov, Panayot S. Vassilevski
Performance of Block-ILU Factorization Preconditioners Based on Block-Size Reduction for 2D Elasticity Systems. SIAM J. Sci. Comput. 18 (5) (1997)
Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki, R. Owens
A Shared Memory Parallel Implementation of Block-Circulant Preconditioners. LSSC (1997)
Ivan Lirkov, Svetozar Margenov, Ludmil T. Zikatanov
Circulant Block-Factorization Preconditioning of Anisotropic Elliptic Problems. Computing 58 (3) (1997)
Ivan Lirkov, Svetozar Margenov
Parallel Complexity of Conjugate Gradient Method with Circulant Preconditioners. Parcella (1996)
Ivan Lirkov, Svetozar Margenov
Displacement Decomposition Circulant Preconditioners for Almost Incompressible 2D Elasticity Systems. WNAA (1996)
Svetozar Margenov, J. M. L. Maubach
Optimal algebraic multilevel preconditioning for local refinement along a line. Numer. Linear Algebra Appl. 2 (4) (1995)
Svetozar Margenov, Panayot S. Vassilevski
Algebraic Multilevel Preconditioning of Anisotropic Elliptic Problems. SIAM J. Sci. Comput. 15 (5) (1994)
Ivan Lirkov, Svetozar Margenov, Panayot S. Vassilevski
Circulant block-factorization preconditioners for elliptic problems. Computing 53 (1) (1994)
Raytcho D. Lazarov, Panayot S. Vassilevski, Svetozar Margenov
Solving Elliptic Problems by the Domain Decomposition Method Using Proconditioning Matrices Derived by Multilevel Splitting of the Finite Element Matrix. ICS (1987)