# In memory of Yuriy Kozachenko

Kozachenko Yuriy Vasyliovych went from a student of the Taras Shevchenko National University of Kyiv to a professor, head of the Department of Probability Theory and Mathematical Statistics, which he headed from 1998 to 2003. Kozachenko worked at the university for 54 years, starting in 1967. For hundreds of students and dozens of graduate students, he was a dear teacher and guide in the world of science.

Professor Kozachenko Yu.V. was one of the leaders of the Ukrainian school of probability theory and mathematical statistics, a world-renowned expert in the field of theory and modeling of random processes in functional spaces. Yu.V. Kozachenko is one of the creators of the theory of sub-Gaussian random processes and processes from Orlich spaces. He created a new scientific direction - modeling of random processes in different functional spaces with a given accuracy and reliability. Professor Kozachenko Yu.V. also received significant scientific results in the study of analytical properties of random processes, equations of mathematical physics with random initial conditions, statistics of random processes, wavelet analysis.

Yuriy Kozachenko's scientific achievements have been repeatedly awarded. In 2003 he became a laureate of the State Prize of Ukraine in the field of science and technology, in 2005 he was awarded the title of "Honorary Doctor of Uzhgorod National University", in 2009 - the title of "Honored Professor of Taras Shevchenko National University of Kyiv", in 2010 - the title of Honored Worker of Science and Technology of Ukraine ”and Distinctions of the Academic Council of the Taras Shevchenko National University of Kyiv, and in 2013 he was awarded the prize named after M.M. Krylov of the Presidium of the National Academy of Sciences of Ukraine. In 2018, for outstanding personal contribution to the development of domestic mathematical science, fruitful long-term pedagogical work, Professor Yu.V. Kozachenko was awarded the Order of Merit of the III degree.

Yuriy Vasyliovych passed on his fascination with the scientific problems of probability theory and mathematical statistics to his pupils, colleagues, and students, who will continue and develop the scientific research he initiated.

The bright memory of Yuri Kozachenko, an outstanding scientist and talented teacher, this extremely wise, sensitive and kind man, will forever remain in the hearts of his family and friends, colleagues and students - all who knew him.

The staff of the Taras Shevchenko National University of Kyiv expresses its sincere condolences to the relatives of Yuriy Vasyliovych Kozachenko and to all who knew this outstanding person.

* material from the site of the Department of Probability Theory, Statistics and Actuarial Mathematics.