Warning message Node revision 628 not found in node Upper and low bounds of azimuthal numbers related to elementary wave functions of an elliptic cylinder . Perharps it was deleted. Халиуллина Айгуль Римзиловна RussiaMoscow National Research University of Electronic Technology, Bld. 5, Pas. 4806, Zelenograd, Moscow, Russia, 124498 Аспирант кафедры высшей математикиhaliullinaar@gmail.com Author's articles Конгруэнции полигонов над группами