TY JOUR TI A COMPLEX MATHEMATICAL MODEL OF INFORMATION, FUNCTIONAL, AND FIRE SAFETY OF DANGEROUS PRODUCTION FACILITIES IN THE TECHNOSPHERE KW mathematical model KW Markov model KW information security KW functional security KW fire safety KW hazardous production facility KW technosphere JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Tukmacheva, M.A. AU Shestakov, A.V. PY 2025 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia