National University of Uzbekistan
named after Mirzo Ulugbek

Labor activity

Djavvat Khadjiev was born on July 4, 1938, in Tashkent, in a family of an office employee. From 1946 to 1956 he studied at a secondary school in Tashkent. In 1956 he graduated from Secondary School No. 73 with a silver medal. In 1956 he was admitted to the first year of the Faculty of Mechanics and Mathematics of the Central Asian State University of Uzbekistan (now the National University of Uzbekistan). In 1959, at the initiative of Academicians T.A. Sarymsakov and S.H. Sirajdinov, he and three other students were transferred to the third year of the Faculty of Mechanics and Mathematics of Lomonosov Moscow State University. In 1962 he graduated from the Faculty of Mechanics and Mathematics of Moscow State University with a recommendation for postgraduate study. In 1965 he completed his postgraduate studies at the same faculty and submitted his Candidate of Sciences (PhD equivalent) dissertation. In March 1967 he successfully defended his Candidate of Sciences dissertation under the supervision of F.A. Berezin at the Academic Council of the Faculty of Mechanics and Mathematics of Moscow State University. The topic of his dissertation was “Some Questions of Invariant Theory”. In 1976, Khadjiev successfully defended his Doctor of Sciences dissertation at Kharkiv State University (Ukraine) on the topic “Some Questions of Invariant Theory and Representation Theory”. From October 1, 1965, to August 1998, Khadjiev worked at the National University of Uzbekistan (formerly Tashkent State University) in the following positions: Assistant (1965–1967), Senior Lecturer (1967–1969), Associate Professor (1969–1978), Professor (1979–1998), Dean of the Faculty of Mechanics and Mathematics (1971–1985), Head of the Department of Algebra and Number Theory. In 1979 he was awarded the academic title of Professor. In August 1998 he retired, but he continues his scientific and pedagogical activity to this day.

In 1998 he was invited to Karadeniz Technical University (Turkey) to help train specialists in algebra and geometry. From 1998 until July 1, 2014, he worked there as a Professor. Since September 1, 2014, he has continued working at the National University of Uzbekistan. The scientific activity of D.Khadjiev relates to the following areas of mathematics: Algebra (invariant theory, theory of l-groupoids), Geometry (invariant theory of curves and surfaces), Invariant theory of parametric figures and its applications in pattern recognition and artificial intelligence, Functional analysis (theory of topological semifields, Fourier series in Banach spaces, theory of invariant means, integration theory).

D.Khadjiev has published more than 100 papers, three monographs, and one textbook. He supervised 21 Candidates of Sciences in Uzbekistan and 8 PhD doctoral students in Turkey. In 1984 he was elected a Corresponding Member of the Academy of Sciences of Uzbekistan, and in 2000 he was elected a Full Member (Academician) of the same Academy. In 1985, for his works in mathematics and their applications, he was awarded the State Prize named after Abu Rayhan al-Biruni of the Republic of Uzbekistan.

In 1990, for his scientific research in mathematics and for training specialists in mathematics, he was awarded the honorary title “Honored Scientist of the Republic of Uzbekistan.” D. Khadjiev has been awarded Certificates of Honor of the Republic of Uzbekistan. In 1993 he received a three-year grant from the American Mathematical Society for research in invariant theory. As part of this grant, the American Mathematical Society also sent him more than 1200 books and journals related to the grant topic. Khadjiev donated these books and journals to the Institute of Mathematics of the Academy of Sciences of Uzbekistan.