До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча
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| Cite this: | До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча / В.Ю. Лазур // Український фізичний журнал. — 2010. — Т. 55, № 6. — С. 747-749. — укр. |
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Лазур, В.Ю. 2014-02-14T19:57:22Z 2014-02-14T19:57:22Z 2010 До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча / В.Ю. Лазур // Український фізичний журнал. — 2010. — Т. 55, № 6. — С. 747-749. — укр. 2071-0194 https://nasplib.isofts.kiev.ua/handle/123456789/56227 uk Відділення фізики і астрономії НАН України Український фізичний журнал Хроніка, бібліографічна інформація, персоналії До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча To the 75-th Anniversary of the Doctor of Science in Physics and Mathematics, Professor of Uzhgorod National University Ivan Vasylyovych Khimich Article published earlier |
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До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча |
| spellingShingle |
До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча Лазур, В.Ю. Хроніка, бібліографічна інформація, персоналії |
| title_short |
До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча |
| title_full |
До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча |
| title_fullStr |
До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча |
| title_full_unstemmed |
До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча |
| title_sort |
до 75-річчя доктора фізико-математичних наук, професора ужгородського національного університету івана васильовича хіміча |
| author |
Лазур, В.Ю. |
| author_facet |
Лазур, В.Ю. |
| topic |
Хроніка, бібліографічна інформація, персоналії |
| topic_facet |
Хроніка, бібліографічна інформація, персоналії |
| publishDate |
2010 |
| language |
Ukrainian |
| container_title |
Український фізичний журнал |
| publisher |
Відділення фізики і астрономії НАН України |
| format |
Article |
| title_alt |
To the 75-th Anniversary of the Doctor of Science in Physics and Mathematics, Professor of Uzhgorod National University Ivan Vasylyovych Khimich |
| issn |
2071-0194 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/56227 |
| citation_txt |
До 75-річчя доктора фізико-математичних наук, професора Ужгородського національного університету Івана Васильовича Хіміча / В.Ю. Лазур // Український фізичний журнал. — 2010. — Т. 55, № 6. — С. 747-749. — укр. |
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CHRONICLE, BIBLIOGRAPHIC DATA, AND PERSONALIA
ISSN 2071-0194. Ukr. J. Phys. 2010. Vol. 55, No. 6 745
TO THE 75-TH ANNIVERSARY OF THE DOCTOR
OF SCIENCE IN PHYSICS AND MATHEMATICS,
PROFESSOR OF UZHGOROD NATIONAL UNIVERSITY
IVAN VASYLYOVYCH KHIMICH
Ivan Vasylyovych Khimich was born on June 25, 1935,
at the village of Irshava, Zakarpattya region, Ukraine.
In 1952, he left the secondary school at Irshava and, in
1958, graduated from the physical branch of the Physico-
Mathematical Faculty of the Uzhgorod National Univer-
sity (UzhNU). Being appointed a teacher of a secondary
school at Biletsk (Irshava district), Ivan Vasylyovych
taught there physics and mathematics from September
1, 1958. In December 1958, he was taken on as an assis-
tant at the Chair of substance structure and theoretical
physics of the UzhNU. From 1960 to 1963, he was a
postgraduate student at the Chair of theoretical physics
of the UzhNU. His scientific supervisor was Head of the
Chair, senior lecturer Yu.M. Lomsadze.
In May 1966, Ivan Vasylyovych defended his Ph.D.
dissertation entitled “Analytical Properties of a Partial
amplitude in the Complex plane of the Coupling Con-
stant” at the Institute of physics of the AS of Ukrainian
SSR (Kyiv). He was awarded the scientific rank of se-
nior lecturer in September 1968. From December 1966
to November 1970, I.V. Khimich worked as a senior lec-
turer at the Chair of theoretical physics of the UzhNU,
and from December 1970 to July 1976, he was Head of
this Chair. In 1976–1978, he was a postdoctoral student
at the Chair of theoretical physics. In November 1983,
Ivan Vasylyovych defended his doctoral dissertation en-
titled “Properties of Scattering Amplitudes of Polyno-
mial and Nonpolynomial Growths in the Quantum Field
Theory ” at the Institute of physics of the AS of Belarus
(Minsk), and he was conferred the degree of Doctor of
Science in physics and mathematics. In March 1986, he
earned the academic rank of Professor at the Chair of
theoretical physics.
In September 1986, Professor I.V. Khimich was elected
Head of the Chair of nuclear physics of the UzhNU,
where he worked till January 2006. Later on, he was
given the post of Professor at the branch of nuclear and
elementary particle physics of the Chair of theoretical
physics of the Uzhgorod National University, where he
has been working till now.
I.V. Khimich is a physicist-theorist, who is well-known
in the scientific community. In the scientific papers of
Prof. I.V. Khimich and his disciples, the problem of
generalization of Bogoliubov–Medvedev–Polivanov ax-
iomatic approach onto a wide class of local quantum field
theories with nonpolynomial growth of matrix elements
in the momentum space had been formulated and suc-
cessfully solved. It allowed a wide class of interactions
that are not renormalized in a conventional sense – in
ДО 75-РIЧЧЯ
particular, weak interactions – to be included into the
scope of the axiomatic approach. A new proof was pro-
posed for an analog of the integral Jost–Lehmann–Dyson
representation of the Fourier transform for a causal com-
mutator with nonpolynomial growth. On the basis of
this representation and in the framework of local quan-
tum field theory, a proof was given for the dispersion
relations for ΠN-scattering and binary scattering pro-
cesses caused by the weak interaction. In the framework
of local theories, the analytical properties of the elastic
dispersion amplitude were studied as functions of two
Mandelstam variables, s and t. As a result of those re-
searches, I.V. Khimich managed to prove the holomor-
phy of the elastic scattering amplitude with respect to
the momentum transferred in the so-called Martin ellipse
and to derive an analog of Froissart–Martin axiomatic
restriction at high energies.
The researches carried out have a principal value from
the viewpoint of applying the results of axiomatic quan-
tum field theory to experimental verification of the fun-
damentals of relativistic quantum field theory which is
the frontier of modern physics.
In I.V. Khimich’s works, the properties of the scat-
tering amplitude in the complex plane of the coupling
constant (interaction intensity) in both nonrelativistic
quantum theory of scattering and relativistic quantum
field theory were also studied. Those researches allowed
a new approach to be proposed for the theoretical de-
scription and calculation of the energy spectrum of cou-
pled, virtual, and resonant states in definite atomic and
nuclear dynamic systems. A number of scientific results
obtained by I.V. Khimich in the co-authorship with his
disciples and colleagues are well-known to experts; they
are cited in and included into monographs written by
outstanding scientists – e.g., R.G. Newton, Scattering
Theory of Waves and Particles (McGraw Hill, New York,
1969); N.N. Bogoliubov, A.A. Logunov, A.I. Oksak, and
I.T. Todorov, General Principles of Quantum Field The-
ory (Kluwer, Dordrecht, 1990) – which were published
in the USA and Russia, and translated into a number of
foreign languages.
Another group of scientific results obtained by
I.V. Khimich is connected with the researches of group
properties of the scattering amplitude which are asso-
ciated with the inhomogeneous de Sitter group and its
small subgroups. A partial wave analysis of the binary
scattering amplitude in terms of matrix elements of irre-
ducible unitary representations of the homogeneous de
Sitter group has been proposed.
At the Chair of nuclear physics and under the scien-
tific supervision of Prof. I.V. Khimich, a cycle of experi-
mental and theoretical researches have been executed on
experimental accelerator-based installations – a B-25 be-
tatron and an M-10 microtrone – concerning the energy
dependence of effective cross-sections and isomeric yield
ratios for both short- (the milli- and microsecond lifetime
ranges) and long-lived isomeric states for a series of rel-
evant nuclei that are excited in photonuclear reactions.
In the energy dependence of the effective cross-section
for 115In(γ, γ′)115mIn reaction, the existence of two max-
ima, i.e. a new structure of the effective cross-section,
has been discovered for the first time. The data obtained
are important for elucidating the excitation mechanism
of nuclear isomeric states. They will enrich the database
of isomeric states in nuclear physics and can find applica-
tion as nuclear constants at the development of gamma-
ray lasers.
In 1986–1990, fulfilling the governmental decree, the
collaborators of the Chair of nuclear physics headed by
I.V. Khimich carried out researches of radiation stability
of electronic elements and devices in the framework of
the corresponding program of space researches.
In the scientific works of I.V. Khimich and his dis-
ciples, a new adiabatic three-particle model of nucleus
was proposed. This model made it possible to give
a correct theoretical description, in the potential ap-
proach, of the effects of nucleon pairing which lead
to the so-called superfluid states of nuclei. His is
an author and a co-author of more than 150 scien-
tific papers; he takes part in training the scientific
an pedagogical staff by means of postgraduate study.
Among his disciples, there are four Ph.D.’s and two
Dr.Sci.’s in physics and mathematics. In the past,
Prof. I.V. Khimich took direct part in the organiza-
tion and holding of eight all-Union conferences on the
quantum field theory and the theory of elementary par-
ticles, as well as a number of republican and interna-
tional conferences on challenging problems in nuclear
physics. The staff of the Chair of nuclear physics has
grown up to the leading educational and scientific cen-
ter of Ukraine.
The fruitful and vigorous activity of Professor
I.V. Khimich as a scientist and a former head of one
of three (after Kharkiv and Kyiv) nuclear centers in
Ukraine promoted the opening of a new speciality, nu-
clear and elementary particle physics, at the physi-
cal faculty of the UzhNU in the 2004–2005 academic
year.
The main affair in I.V. Khimich’s life has been the sci-
entific and pedagogic activity, to which he has devoted
his best 52 years. During his work at the physical faculty
of the UzhNU, Prof. I.V. Khimich provided lecturing for
746 ISSN 2071-0194. Ukr. J. Phys. 2010. Vol. 55, No. 6
TO THE 75-TH ANNIVERSARY
many general and special courses on modern theoretical
and nuclear physics. When holding various lecturer po-
sitions, he developed a lot of programs and courses, or-
ganized the corresponding laboratory workshops in both
the general disciplines and specialized courses, and per-
manently was interested in a methodological support of
the courses.
Time and again, I.V. Khimich took direct part in and
provided management for performing important scien-
tific programs adopted by the Ministry of Education of
the USSR and the governmental decrees of the USSR
and Ukraine. He also was a member of the specialized
academic council on Ph.D. dissertations at the Physi-
cal Faculty of the UzhNU. Now, Ivan Vasylyovych is a
member of the Council of Western scientific center of
the AS of Higher Education (ASHE) of Ukraine and a
member of the editorial board of the journal “Scientific
Bulletin of Uzhgorod University, Series Physics”.
In 1995, for his considerable personal contribution to
the training of highly skilled experts and his long-term
scientific and pedagogical activity, Prof. I.V. Khimich
was given the title “Honored worker of national education
of Ukraine”. The same year, he was elected Academician
of the ASHE of Ukraine and, some later, a member of
the Presidium of the ASHE of Ukraine.
The editorial board of the Ukrainian Journal of
Physics, the colleagues and disciples congratulate Ivan
Vasylyovych on the anniversary of his birthday. They
wish him sound health, family happiness, inexhaustible
creative enthusiasm, and successes in his work aimed at
the development of independent Ukraine.
Dean of the Physical Faculty of UzhNU
Dr.Sci. in physics and mathematics
Prof. V.Yu. Lazur
ISSN 2071-0194. Ukr. J. Phys. 2010. Vol. 55, No. 6 747
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