Institution: | 1. INRIA/Centre de mathématiques appliquées, école Polytechnique, Université Paris-Saclay, Palaiseau, France.;2. Laboratory Jacques Louis Lions, University Pierre et Marie Curie, Paris, France.;3. St. Petersburg State University, St. Petersburg, Russia.;4. Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia.;5. Laboratory of Mathematical Methods in Mechanics of Materials, Institute of Problems of Mechanical Engineering, St. Petersburg, Russia. |