Address

Algebra Department,
Pidstryhach Institute of Applied Problems
of Mechanics and Mathematics
of National Academy of Sciences of Ukraine,
3-b Naukova Str.,
Lviv, 79060, Ukraine

Phone: (0380) (322) 258-51-87, 
             (0380) (322) 258-96-24

E-mail: dept14@iapmm.lviv.ua