The 60th anniversary of Professor Yurij Kozitsky
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| Datum: | 2009 |
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| Format: | Artikel |
| Sprache: | English |
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Інститут фізики конденсованих систем НАН України
2009
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| Schriftenreihe: | Condensed Matter Physics |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/120555 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | The 60th anniversary of Professor Yurij Kozitsky // Condensed Matter Physics. — 2009. — Т. 12, № 4. — С. 755-756. — англ. |
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irk-123456789-1205552017-06-13T03:05:40Z The 60th anniversary of Professor Yurij Kozitsky 2009 Article The 60th anniversary of Professor Yurij Kozitsky // Condensed Matter Physics. — 2009. — Т. 12, № 4. — С. 755-756. — англ. 1607-324X http://dspace.nbuv.gov.ua/handle/123456789/120555 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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DSpace DC |
| language |
English |
| format |
Article |
| title |
The 60th anniversary of Professor Yurij Kozitsky |
| spellingShingle |
The 60th anniversary of Professor Yurij Kozitsky Condensed Matter Physics |
| title_short |
The 60th anniversary of Professor Yurij Kozitsky |
| title_full |
The 60th anniversary of Professor Yurij Kozitsky |
| title_fullStr |
The 60th anniversary of Professor Yurij Kozitsky |
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The 60th anniversary of Professor Yurij Kozitsky |
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60th anniversary of professor yurij kozitsky |
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Інститут фізики конденсованих систем НАН України |
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2009 |
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http://dspace.nbuv.gov.ua/handle/123456789/120555 |
| citation_txt |
The 60th anniversary of Professor Yurij Kozitsky // Condensed Matter Physics. — 2009. — Т. 12, № 4. — С. 755-756. — англ. |
| series |
Condensed Matter Physics |
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2025-07-08T18:07:36Z |
| last_indexed |
2025-07-08T18:07:36Z |
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1837103117461618688 |
| fulltext |
The 60th anniversary of Professor Yurij Kozitsky
Yurij Kozitsky was born on April 21, 1949 in the
city of Kremenchukh, Poltava Region of Ukraine.
He finished a secondary school and in 1967 en-
tered the Physics Faculty of the Ivan Franko Lviv
State University. Being fascinated by two sciences,
physics and mathematics, he chose his specializa-
tion in the field of solid state theory. The supervisor
of his diploma work was Prof. I.V. Stasyuk, a well-
known expert in the theory of magnetic, segnetoelec-
tric, and optical phenomena in solids. The objective
of the master’s thesis by Yu. Kozitsky (1972) was
to develop new theoretical approaches in studying
the dynamics of segnetoactive crystals with hydro-
gen bonds. Later, the results of these investigations,
augmented and generalized, were published as sci-
entific papers (co-authored with I.V. Stasyuk and
R.R. Levitskii).
The making of Yu. Kozitsky as a scientist, physi-
cist and mathematician, as a talented teacher and
youth adviser took place in Lviv. Considerable role
in this process belongs to two institutions where
Yu. Kozitsky used to work. These are the Lviv Institute for Trade and Economy (presently the
Commercial Academy) and the Lviv Division of Statistical Theory of Condensed States of the
Institute for Theoretical Physics of the Academy of Sciences of Ukraine. In the Lviv Institute for
Trade and Economy (since 1982), Yu. Kozitsky covered the way from the chair laboratory assistant
to the professor holding the Chair of Higher Mathematics. No less fruitful and important in further
creative search of the scientist were the years of his PhD study and his work in the Lviv Division
of Statistical Theory of Condensed States (1977–1982). Here, under the supervision of academician
I.R. Yukhnovskii, took place the development of scientific interests and insights of Yu. Kozitsky
as well as his moulding as an independent scientst. His PhD thesis entitled “Application of the
Collective Variables Method to the Investigation of the Renormalization Group Properties in the
Ising Model” which was successfully defended in 1981, showed that Yu. Kozitsky became one of
the leading experts in the field of phase transition theory by obtaining impotant results in the in-
vestigation of the critical behavior of ferromagnets on the basis of generalized hierarchical models.
At the Lviv Institute for Trade and Economy, Yu. Kozitsky gets deeply involved in the problems
of the higher educational institution. He teaches students and at the same time gets acquainted
with novel areas of mathematics. His scientific interests displace towards mathematical foundations
of the theories and methods used in the studies of phase transitions. However, the physical nature
of the models and interpretation of the results always remain the most important to him. In 1991
Yu. Kozitsky defended his habilitation thesis entitled “Critical phenomena in classical hierarchical
models” and soon became full professor.
Presently, Prof. Kozitsky resides in Lublin, holds the chair of information science in the Maria
Curie-Sklodowska University, where has developed his own school of functional analysis and math-
ematical physics. He maintains regular scientific contacts with his colleagues, physicists and math-
ematicians from Germany, Israel, Great Britain, Ukraine, Russia. The scientific activities of Prof.
Yu. Kozitsky deal with the study and mathematical substantiation of theoretical approaches to
the investigation of condensed matter, and the application of his methods in the phase transition
theory. He has obtained important results in studying the spin-phonon systems, in particular, in
analysing the polariton effects in ferrolectric crystals and in finding the collective excitation spec-
tra. Yu. Kozitsky succeeded in rigorously mathematically verifying the self-similarity symmetry
755
concept in the theory of phase transitions of the second order. The implementation of this concept
in the shell integration method by I. R. Yukhnovskii opened up new possibilities for constructing
the hierarchical models starting with the lattice models of ferromagnets.
In the last years, the study of mathematical properties of statistical distributions based on
quantum Gibbs states takes up the most prominent place in the scientific research of Yu. Kozitsky.
He proved that the macroscopic fluctuations of particle displacements in a strictly anharmonic
crystal are always non-quantum. Strong quantum effects, if present, oppose the appearance of
the long-distance ordering by pushing the phase transition point into the zero-temperature region.
Characteristic features of the work by Yu. Kozitsky are the unique intuition in stating the problem,
a mathematical rigour, and high culture in performing the calculations.
The editorial board of the “Condensed Matter Physics” congratulates Prof. Yu. Kozitsky on
his jubilee and wishes him the long and successful life in science.
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