Tsitsiashvili Gurami Shalvovich is the main researcher of the Institute for Applied Mathematics, Far Eastern Branch of Russian Academy Sciences. He finished his studies at the Moscow Physical and Technical Institute in 1972 and defended his candidate thesis on mathematical cybernetics in 1976 and doctoral thesis on system analysis in 1992. Tsitsiashvili G.Sh. has been working in the mathematical divisions of the Far Eastern Branch of the Russian Academy of Sciences since 1972. His main research interests are issues of stability and efficiency of queuing systems, asymptotic analysis in reliability and insurance problems, and various applications to modern technologies. In recent years, he has paid attention to various applied problems of graph theory.