Svetozar Margenov

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. Meth. in Appl. Math. 12(4): 415-436 (2012)

Petia T. Boyanova, Ivan Georgiev, Svetozar Margenov, Ludmil Zikatanov: Multilevel preconditioning of graph-Laplacians: Polynomial approximation of the pivot blocks inverses. Mathematics and Computers in Simulation 82(10): 1964-1971 (2012)

Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski (Eds.): Large-Scale Scientific Computing - 8th International Conference, LSSC 2011, Sozopol, Bulgaria, June 6-10, 2011, Revised Selected Papers. Lecture Notes in Computer Science 7116, Springer 2012, isbn 978-3-642-29842-4

Nikola Kosturski, Svetozar Margenov, Yavor Vutov: Improving the Efficiency of Parallel FEM Simulations on Voxel Domains. LSSC 2011: 574-581

Johannes Kraus, Maria Lymbery, Svetozar Margenov: On the Robustness of Two-Level Preconditioners for Quadratic FE Orthotropic Elliptic Problems. LSSC 2011: 582-589

Nikola Kosturski, Svetozar Margenov, Yavor Vutov: Balancing the Communications and Computations in Parallel FEM Simulations on Unstructured Grids. PPAM (2) 2011: 211-220

István Faragó, Ágnes Havasi, Svetozar Margenov, Zahari Zlatev: Special Issue on Advanced Computational Algorithms: Introduction. J. Computational Applied Mathematics 235(2): 345-347 (2010)

Petia T. Boyanova, Svetozar Margenov, Maya Neytcheva: Robust AMLI methods for parabolic Crouzeix-Raviart FEM systems. J. Computational Applied Mathematics 235(2): 380-390 (2010)

P. Popov, Yavor Vutov, Svetozar Margenov, O. Iliev: Finite Volume Discretization of Equations Describing Nonlinear Diffusion in Li-Ion Batteries. NMA 2010: 338-346

Ivan Georgiev, Maria Lymbery, Svetozar Margenov: Analysis of the CBS Constant for Quadratic Finite Elements. NMA 2010: 412-419

Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski (Eds.): Large-Scale Scientific Computing, 7th International Conference, LSSC 2009, Sozopol, Bulgaria, June 4-8, 2009. Revised Papers. Lecture Notes in Computer Science 5910, Springer 2010, isbn 978-3-642-12534-8

Petia T. Boyanova, Svetozar Margenov: Numerical Study of AMLI Methods for Weighted Graph-Laplacians. LSSC 2009: 84-91

Ivan Georgiev, Johannes Kraus, Svetozar Margenov: Multilevel Preconditioning of Crouzeix-Raviart 3D Pure Displacement Elasticity Problems. LSSC 2009: 100-107

Nikola Kosturski, Svetozar Margenov: Numerical Homogenization of Bone Microstructure. LSSC 2009: 140-147

Svetozar Margenov, Yavor Vutov: Parallel MIC(0) Preconditioning for Numerical Upscaling of Anisotropic Linear Elastic Materials. LSSC 2009: 805-812

Svetozar Margenov, Lubin G. Vulkov, Jerzy Wasniewski (Eds.): Numerical Analysis and Its Applications, 4th International Conference, NAA 2008, Lozenetz, Bulgaria, June 16-20, 2008. Revised Selected Papers. Lecture Notes in Computer Science 5434, Springer 2009, isbn 978-3-642-00463-6

Peter Arbenz, Svetozar Margenov, Yavor Vutov: Parallel MIC(0) preconditioning of 3D elliptic problems discretized by Rannacher-Turek finite elements. Computers & Mathematics with Applications 55(10): 2197-2211 (2008)

Ivan Georgiev, Johannes Kraus, Svetozar Margenov: Multilevel preconditioning of rotated bilinear non-conforming FEM problems. Computers & Mathematics with Applications 55(10): 2280-2294 (2008)

Ivan Georgiev, Johannes Kraus, Svetozar Margenov: Multilevel algorithms for Rannacher-Turek finite element approximation of 3D elliptic problems. Computing 82(4): 217-239 (2008)

Petia T. Boyanova, Svetozar Margenov: Multilevel Splitting of Weighted Graph-Laplacian Arising in Non-conforming Mixed FEM Elliptic Problems. NAA 2008: 216-223

Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski (Eds.): Large-Scale Scientific Computing, 6th International Conference, LSSC 2007, Sozopol, Bulgaria, June 5-9, 2007. Revised Papers. Lecture Notes in Computer Science 4818, Springer 2008, isbn 978-3-540-78825-6

Raytcho D. Lazarov, Svetozar Margenov: CBS constants for multilevel splitting of graph-Laplacian and application to preconditioning of discontinuous Galerkin systems. J. Complexity 23(4-6): 498-515 (2007)

Svetozar Margenov, P. Minev: On a MIC(0) preconditioning of non-conforming mixed FEM elliptic problems. Mathematics and Computers in Simulation 76(1-3): 149-154 (2007)

Ivan Georgiev, Johannes Kraus, Svetozar Margenov: Multilevel Preconditioning of Rotated Trilinear Non-conforming Finite Element Problems. LSSC 2007: 86-95

Krassimir Georgiev, Nikola Kosturski, Svetozar Margenov: On the Numerical Solution of the Heat Transfer Equation in the Process of Freeze Drying. LSSC 2007: 410-416

Wojciech Kuranowski, Marcin Paprzycki, Maria Ganzha, Maciej Gawinecki, Ivan Lirkov, Svetozar Margenov: Agents as Resource Brokers in Grids - Forming Agent Teams. LSSC 2007: 484-491

Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki: Benchmarking Performance of an MPI-based Solver for 3D Elasticity Problems. John Vincent Atanasoff Symposium 2006: 260-265

Ivan Georgiev, Johannes Kraus, Svetozar Margenov: Multilevel Preconditioning of 2D Rannacher-Turek FE Problems; Additive and Multiplicative Methods. Numerical Methods and Applications 2006: 56-64

Nikola Kosturski, Svetozar Margenov: Comparative Analysis of Mesh Generators and MIC(0) Preconditioning of FEM Elasticity Systems. Numerical Methods and Applications 2006: 74-81

Svetozar Margenov, Josef Synka: Generalized Aggregation-Based Multilevel Preconditioning of Crouzeix-Raviart FEM Elliptic Problems. Numerical Methods and Applications 2006: 91-99

Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski (Eds.): Large-Scale Scientific Computing, 5th International Conference, LSSC 2005, Sozopol, Bulgaria, June 6-10, 2005, Revised Papers. Lecture Notes in Computer Science 3743, Springer 2006, isbn 3-540-31994-8

Gergana Bencheva, Svetozar Margenov, Jirí Starý: Parallel PCG Solver for Nonconforming FE Problems: Overlapping of Communications and Computations. LSSC 2005: 646-654

Radim Blaheta, Svetozar Margenov, Maya Neytcheva: Aggregation-Based Multilevel Preconditioning of Non-conforming FEM Elasticity Problems. PARA 2004: 847-856

Ivan Lirkov, Svetozar Margenov, Jerzy Wasniewski, Plamen Y. Yalamov (Eds.): Large-Scale Scientific Computing, 4th International Conference, LSSC 2003, Sozopal, Bulgaria, June 4-8, 2003, Revised Papers. Lecture Notes in Computer Science 2907, Springer 2004, isbn 3-540-21090-3

Gergana Bencheva, Ivan Georgiev, Svetozar Margenov: Two-Level Preconditioning of Crouzeix-Raviart Anisotropic FEM Systems. LSSC 2003: 76-84

Ivan Dimov, Ivan Lirkov, Svetozar Margenov, Zahari Zlatev (Eds.): Numerical Methods and Applications, 5th International Conference, NMA 2002, Borovets, Bulgaria, August 20-24, 2002, Revised Papers. Lecture Notes in Computer Science 2542, Springer 2003, isbn 3-540-00608-7

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: 192-204

Ivan Georgiev, Svetozar Margenov: MIC(0) Preconditioning of Rotated Trilinear FEM Elliptic Systems. LSSC 2001: 95-103

Svetozar Margenov, Jerzy Wasniewski, Plamen Y. Yalamov (Eds.): Large-Scale Scientific Computing, Third International Conference, LSSC 2001, Sozopol, Bulgaria, June 6-10, 2001, Revised Papers. Lecture Notes in Computer Science 2179, Springer 2001, isbn 3-540-43043-1

Tzanio V. Kolev, Svetozar Margenov: AMLI Preconditioning of Pure Displacement Non-conforming Elasticity FEM Systems. NAA 2000: 482-489

Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki: Parallel Performance of a 3D Elliptic Solver. NAA 2000: 535-543

Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki, J. McLaughlin: Parallel Conjugate Gradient Method with Circulant Block-Factorization Preconditioners for 3D Elliptic Problems. PPSC 1999

Michael Griebel, Svetozar Margenov, Plamen Y. Yalamov (Eds.): Large-Scale Scientific Computation for Engineering and Environmental Problems, II (LSSC'99), Sozopol, Bulgaria, June 2-6, 1999. Notes on Numerical Fluid Mechanics 73, Vieweg 1999

Ivan Lirkov, Svetozar Margenov, Ludmil Zikatanov: Circulant Block-Factorization Preconditioning of Anisotropic Elliptic Problems. Computing 58(3): 245-258 (1997)

A. Georgiev, Svetozar Margenov: BSR BILU Preconditioning for 3D Simulation of Pile Foundation Systems in Nonlinear Media. LSSC 1997: 219-228

Svetozar Margenov, P. S. Vassilevski: Algebraic Two-Level Preconditioning of Non-Conforming FEM Systems. LSSC 1997: 239-250

Ivan Lirkov, Svetozar Margenov, Marcin Paprzycki, R. Owens: A Shared Memory Parallel Implementation of Block-Circulant Preconditioners. LSSC 1997: 319-327

Michael Griebel, Oleg P. Illiev, Svetozar Margenov, Panayot Vassilevski (Eds.): Large-Scale Scientific Computation for Engineering and Environmental Problems, LSSC'97, Varna, Bulgaria, 7-11 June 1997. Notes on Numerical Fluid Mechanics 62, Vieweg 1997

Ivan Lirkov, Svetozar Margenov: Displacement Decomposition Circulant Preconditioners for Almost Incompressible 2D Elasticity Systems. WNAA 1996: 292-299

Ivan Lirkov, Svetozar Margenov: Parallel Complexity of Conjugate Gradient Method with Circulant Preconditioners. Parcella 1996: 279-286

Ivan Lirkov, Svetozar Margenov, Panayot Vassilevski: Circulant block-factorization preconditioners for elliptic problems. Computing 53(1): 59-74 (1994)

Raytcho D. Lazarov, Panayot 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: 826-835