Vol. 55 (2021): Mathematical Problems of Computer Science

Printed on the basis of decision N 21-05/1 of session of the Scientific Council of IIAP NAS RA dated May 20, 2021.

The current volume is dedicated to Professor Evgueni A․ Haroutunian, Doctor of Physical and Mathematical Sciences. Unfortunately, in May 2021, the news of his death followed his 85th anniversary.