Roumen Anguelov Peter Boyvalenkov Department of Mathematics Institute of Mathematics and Informatics and Applied Mathematics Bulgarian Academy of Sciences University of Pretoria, South Africa Acad. G. Bontchev str., bl. 8 Institute of Mathematics 1113 Sofia, Bulgaria and Informatics [email protected] Bulgarian Academy of Sciences, Christo I Christov Sofia, Bulgaria Department of Mathematics, [email protected] University of Louisiana at Lafayette LA 70504-1010, USA Andrey Andreev [email protected] Technical University of Gabrovo 4, Hadji Dimitar Paul Cristea 5300 Gabrovo, Bulgaria Biomedical Engineering Center [email protected] Universitry ”Politechnica” of , Spl. Independentei 313, sect. 6 Emanouil Atanassov 060042 Bucharest, Institute for Parallel Processing [email protected] Bulgarian Academy of Sciences Neli Dimitrova Acad. G. Bontchev str., bl. 25A Institute of Mathematics and Informatics 1113 Sofia, Bulgaria Bulgarian Academy of Sciences [email protected] Acad. G. Bontchev str., bl. 8 1113 Sofia, Bulgaria Krasimir Atanasov [email protected] Center of Biomedical Ingeneering Ivan Dimov Bulgarian Academy of Sciences Institute for Parallel Processing Acad G. Bonchev str. bl.105 Bulgarian Academy of Sciences 1113 Sofia, Bulgaria Acad. G. Bonchev St, Bl. 25A [email protected] 1113 Sofia, Bulgaria [email protected] Gergana Bencheva Centre for Advanced Computing Institute for Parallel Processing and Emerging Technologies (ACET), Bulgarian Academy of Sciences School of Systems Engineering, Acad. G. Bontchev str., bl. 25A The University of Reading, 1113 Sofia, Bulgaria Whiteknights, P.O. Box 225, [email protected] Reading, RG6 6AY, UK [email protected] Petia Boyanova Milena Dimova Institute for Parallel Processing Institute of Mathematics and Informatics Bulgarian Academy of Sciences Bulgarian Academy of Sciences Acad. G. Bontchev str., bl. 25A Acad. G. Bontchev str., bl. 8 1113 Sofia, Bulgaria 1113 Sofia, Bulgaria [email protected] [email protected]

93 Stefka Dimova Krassimir Georgiev Faculty of Mathematics and Informatics Institute for Parallel Processing Sofia University Bulgarian Academy of Sciences 5, James Bourchier Blvd. Acad. G. Bontchev str., bl. 25A 1164 Sofia, Bulgaria 1113 Sofia, Bulgaria [email protected]fia.bg [email protected]

Valerij Djurov Daniela A. Georgieva Department of Algebra and Geometry, Faculty of Applied Mathematics Department of Theoretical Electrical En- and Computer Science, gineering Technical University of Sofia University of Rousse, 8, Kliment Ohridski St., 8 Studentska Str., 1000 Sofia, Bulgaria 7017 Rousse, Bulgaria dgeorgieva@tu-sofia.bg [email protected]

Stefan Dodunekov Rayna Georgieva Institute of Mathematics and Informatics Institute for Parallel Processing Bulgarian Academy of Sciences Bulgarian Academy of Sciences Acad. G. Bontchev str., bl. 8 Acad. G. Bontchev str., bl. 25A 1113 Sofia, Bulgaria 1113 Sofia, Bulgaria [email protected] [email protected]

Rossitza Dodunekova Vladimir St. Gerdjikov Department of Mathematical Sciences Institute for Nuclear Research Chalmers University of Technology and Nuclear Energy and the University of Gothenburg Bulgarian Academy of Sciences 412 96 Gothenburg, Sweden Tsarigradsko chaussee 72 [email protected] 1784 Sofia, Bulgaria [email protected] Stefka Fidanova Institute for Parallel Processing Todor Gurov Bulgarian Academy of Sciences Acad. G. Bontchev str., bl. 25A Institute for Parallel Processing 1113 Sofia, Bulgaria Bulgarian Academy of Sciences [email protected] Acad. G. Bontchev str., bl. 25A 1113 Sofia, Bulgaria Ivan Georgiev [email protected] Johann Radon Institute for Computational and Applied Ivan Hristov Mathematics (RICAM) Faculty of Mathematics and Informatics Austrian Academy of Sciences Sofia University Altenbergerstraße 69 5, James Bourchier Blvd. A-4040 Linz, Austria 1164 Sofia, Bulgaria [email protected] [email protected]fia.bg

94 Rossen Ivanov Natalia Kolkovska School of Mathematical Sciences, Institute of Mathematics and Informatics Dublin Institute of Technology, Bulgarian Academy of Sciences Kevin Street, Acad. G. Bontchev str., bl. 8 Dublin 8, Ireland 1113 Sofia, Bulgaria [email protected] [email protected]

Victoria Ivanova Nikolay Kostov Department of Informatics Institute for Nuclear Research University of Rousse, and Nuclear Energy 8 Studentska Str., Bulgarian Academy of Sciences 7017 Rousse, Bulgaria Tsarigradsko chaussee 72 viktoriqi [email protected] 1784 Sofia, Bulgaria [email protected] Sofia Ivanovska Institute for Parallel Processing Milena Kostova Bulgarian Academy of Sciences Department of Algebra and Geometry, Acad. G. Bontchev str., bl. 25A Department of Theoretical 1113 Sofia, Bulgaria Electrical Engineering sofi[email protected] University of Rousse, Bosko Jovanovic 8 Studentska Str., Faculty of Mathematics 7017 Rousse, Bulgaria University of [email protected] 11000 Belgrade, Nikola Kosturski [email protected] Institute for Parallel Processing Yury Kandilarov Bulgarian Academy of Sciences University of Rousse, Acad. G. Bontchev str., bl. 25A 8 Studentska Str., 1113 Sofia, Bulgaria 7017 Rousse, Bulgaria [email protected] [email protected] Ognyan Kounchev Aneta Karaivanova Department of Operations Research, Institute for Parallel Processing Institute of Mathematics and Informatics Bulgarian Academy of Sciences Bulgarian Academy of Sciences Acad. G. Bontchev str., bl. 25A Acad. G. Bonchev St. 8, 1113 Sofia, Bulgaria 1113 Sofia, Bulgaria [email protected] [email protected] Miglena Koleva Mikhail Krastanov FNSE, Institute of Mathematics and Informatics University of Rousse, Bulgarian Academy of Sciences 8 Studentska Str., Acad. G. Bontchev str., bl. 8 7017 Rousse, Bulgaria 1113 Sofia, Bulgaria [email protected] [email protected]

95 Ivan Landjev Valeri Mladenov Institute of Mathematics and Informatics Dept. of Theoretical Bulgarian Academy of Sciences Electrical Engineering Acad. G. Bontchev str., bl. 8 Technical University of Sofia 1113 Sofia, Bulgaria 8 Kliment Ohridski St. [email protected] 1000 Sofia, Bulgaria valerim@tu-sofia.bg Ivan Lirkov Institute for Parallel Processing Geno Nikolov Bulgarian Academy of Sciences Faculty of Mathematics and Informatics Acad. G. Bontchev str., bl. 25A Sofia University 1113 Sofia, Bulgaria 5, James Bourchier Blvd. [email protected] 1164 Sofia, Bulgaria [email protected]fia.bg

Mladen Manev Department of Mathematics Svetla Nikova Technical University of Gabrovo Katholieke Universiteit Leuven 4, Hadji Dimitar Dept. Electrical 5300 Gabrovo, Bulgaria Engineering-ESAT / COSIC [email protected] Kasteelpark Arenberg 10 B-3001 Leuven, Belgium [email protected] Svetozar Margenov University of Twente Institute for Parallel Processing Faculty of EEMCS Bulgarian Academy of Sciences P.O. Box 217, Acad. G. Bontchev str., bl. 25A 7500 AE Enschede, The Netherlands 1113 Sofia, Bulgaria [email protected] [email protected]

Pencho Marinov Tsvetan Ostromski Institute for Parallel Processing Institute for Parallel Processing Bulgarian Academy of Sciences Bulgarian Academy of Sciences Acad. G. Bontchev str., bl. 25A Acad. G. Bontchev str., bl. 25A 1113 Sofia, Bulgaria 1113 Sofia, Bulgaria [email protected] [email protected]

Svetoslav Markov Petar Popivanov Institute of Mathematics and Informatics Institute of Mathematics and Informatics Bulgarian Academy of Sciences Bulgarian Academy of Sciences Acad. G. Bontchev str., bl. 8 Acad. G. Bontchev str., bl. 8 1113 Sofia, Bulgaria 1113 Sofia, Bulgaria [email protected] [email protected]

96 Georgi Popov Michail D. Todorov Laboratoire de math´ematiques Faculty of Applied Mathematics Jean Leray, and Computer Science, Universit´ede Nantes, Technical University of Sofia 2, rue de la Houssini`ere, 8, Kliment Ohridski St., BP 92208, 44072 Nantes 1000 Sofia, Bulgaria Cedex 03, mtod@tu-sofia.bg [email protected]

Evgenia Popova Peter Topalov Institute of Mathematics and Informatics Department of Mathematics, Bulgarian Academy of Sciences Northeastern University, Acad. G. Bontchev str., bl. 8 360 Huntington Avenue, 1113 Sofia, Bulgaria Boston, MA 02115, USA [email protected] [email protected] Milena Racheva Technical University of Gabrovo 4, Hadji Dimitar Georgi Tsenov 5300 Gabrovo, Bulgaria Dept. of Theoretical [email protected] Electrical Engineering Technical University of Sofia Radomir Slavchov 8 Kliment Ohridski St. Faculty of Chemistry, 1000 Sofia,Bulgaria Sofia University gogotzenov@tu-sofia.bg 1 James Bourchier Blvd. 1164 Sofia, Bulgaria [email protected]fia.bg Rodica Tuduce Biomedical Engineering Center Angela Slavova Universitry ”Politechnica” of Bucharest, Institute of Mathematics and Informatics Spl. Independentei 313, sect. 6 Bulgarian Academy of Sciences 060042 Bucharest, Romania Acad. G. Bontchev str., bl. 8 [email protected] 1113 Sofia, Bulgaria [email protected]

Ivan Zh. Stefanov Tihomir Valchev Department of Theoretical Physics, Institute for Nuclear Research Faculty of Physics and Nuclear Energy Sofia University Bulgarian Academy of Sciences 5, James Bourchier Blvd., Tsarigradsko chaussee 72 1164 Sofia, Bulgaria 1784 Sofia, Bulgaria [email protected]fia.bg [email protected]

97 Daniela Vasileva Stoytcho S. Yazadjiev Institute of Mathematics and Informatics Department of Theoretical Physics, Bulgarian Academy of Sciences Faculty of Physics Acad. G. Bontchev str., bl. 8 Sofia University 1113 Sofia, Bulgaria 5, James Bourchier Blvd., [email protected] 1164 Sofia, Bulgaria Lubin Vulkov [email protected]fia.bg FNSE, Ludmil Zikatanov University of Rousse, Department of Mathematics, Penn State, 8 Studentska Str., University Park, PA 16802, USA 7017 Rousse, Bulgaria [email protected] [email protected] Zahari Zlatev Yavor Vutov National Environmental Institute for Parallel Processing Research Institute, Bulgarian Academy of Sciences Aarhus University Acad. G. Bontchev str., bl. 25A Frederiksborgvej 399, P.O. Box 358, 1113 Sofia, Bulgaria DK-4000, Roskilde, Denmark [email protected] [email protected]

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