May 18, 2025 marks the 80th birthday of outstanding theoretical physicist, Doctor of Physical and Mathematical Sciences, Professor A. S. Kovalev. Alexander Semenovich was born in 1945 in Ulan-Ude, Trans-Baikal region, in the family of a military serviceman. In 1949 his family moved to Kharkiv. It is worth noting that Kharkiv became Alexander Semenovich’s hometown, and he has maintained his love for it throughout his life.
Alexander Kovalev began his education at the famous Kharkiv School No. 36, which over the years has produced many well-known physicists and mathematicians, such as M. Y. Azbel, E. A. Kaner, A. M. Kosevich, Y. I. Lyubich, and V. M. Tsukernik. During the years when Alexander (and the author of this article) studied there, physics was taught by the remarkable teacher Yuri Anatolievich Sokolovich, who not only loved physics and understood it deeply but also was able to pass the love and enthusiasm for...
