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Vladimir G. Pimenov
Institute of Mathematics and Mechanics,
Ural Branch of the Russian Academy of Sciences
Yekaterinburg, Russian Federation
Department of Computational Mathematics and Computer Science,
Institute of Natural Sciences and Mathematics
Ural Federal UniversityYekaterinburg, Russian Federation
Ahmed S. Hendy
Department of Computational Mathematics and Computer Science,
Institute of Natural Sciences and Mathematics
Ural Federal UniversityYekaterinburg, Russian Federation
Department of Mathematics, Faculty of Science,
Benha UniversityBenha, Egypt