To the 115th Anniversary of the Birth of Mykola Bogolyubov

On August 21, we mark the 115th anniversary of the birth of the outstanding scientist Mykola Mykolayovych Bogolyubov. During the current times of severe trials for our country caused by the war, we obtain moral support by recalling the selfless activity of this remarkable person. His life was devoted to science, and he made an invaluable contribution to the development of physics and mathematics in Ukraine.