Speciality: 01.01.09 (Discrete mathematics and mathematical cybernetics)
Phone: +7(965) 315-74-45
Keywords: Chromatic number of sphere, linear-algebraic method, the Frankl–Wilson theorem, the Nelson–Hadwiger problem, distance graphs.

Subject:

Chromatic numbers of spheres, distance graphs

Main publications:

1. A. V. Bobu, O. A. Kostina, A. E. Kupriyanov, “Chisla nezavisimosti i khromaticheskie chisla nekotorykh distantsionnykh grafov”, Probl. peredachi inform., 51:2 (2015), 86–98    ; Problems Inform. Transmission, 51:2 (2015), 165–176      
2. O. A. Kostina, A. M. Raigorodskii, “O nizhnikh otsenkakh khromaticheskogo chisla sfery”, Doklady RAN, 463:6 (2015), 639  ; Doklady Mathematics, 92:1 (2015), 500-502  
3. O. A. Kostina, A. M. Raigorodskii, “O novykh nizhnikh otsenkakh khromaticheskogo chisla sfery”, Trudy MFTI, 7:2 (2015), 20–26

Publications in Math-Net.Ru

Presentations in Math-Net.Ru

Personal pages:

• 

Organisations:

• Lomonosov Moscow State University, Faculty of Mechanics and Mathematics
• Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region