From Belgrade to Sofia with N.N. Bogolyubov in September 1978
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Відділення фізики і астрономії НАН України
2010
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| Цитувати: | From Belgrade to Sofia with N.N. Bogolyubov in September 1978 / V.A. Stefan // Український фізичний журнал. — 2010. — Т. 55, № 5. — С. 651-652. — Бібліогр.: 5 назв. — англ. |
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irk-123456789-562102014-02-14T03:12:14Z From Belgrade to Sofia with N.N. Bogolyubov in September 1978 Stefan V.A. Хроніка, бібліографічна інформація, персоналії 2010 Article From Belgrade to Sofia with N.N. Bogolyubov in September 1978 / V.A. Stefan // Український фізичний журнал. — 2010. — Т. 55, № 5. — С. 651-652. — Бібліогр.: 5 назв. — англ. 2071-0194 http://dspace.nbuv.gov.ua/handle/123456789/56210 en Український фізичний журнал Відділення фізики і астрономії НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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English |
| topic |
Хроніка, бібліографічна інформація, персоналії Хроніка, бібліографічна інформація, персоналії |
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Хроніка, бібліографічна інформація, персоналії Хроніка, бібліографічна інформація, персоналії Stefan V.A. From Belgrade to Sofia with N.N. Bogolyubov in September 1978 Український фізичний журнал |
| format |
Article |
| author |
Stefan V.A. |
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Stefan V.A. |
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Stefan V.A. |
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From Belgrade to Sofia with N.N. Bogolyubov in September 1978 |
| title_short |
From Belgrade to Sofia with N.N. Bogolyubov in September 1978 |
| title_full |
From Belgrade to Sofia with N.N. Bogolyubov in September 1978 |
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From Belgrade to Sofia with N.N. Bogolyubov in September 1978 |
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From Belgrade to Sofia with N.N. Bogolyubov in September 1978 |
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from belgrade to sofia with n.n. bogolyubov in september 1978 |
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Відділення фізики і астрономії НАН України |
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2010 |
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Хроніка, бібліографічна інформація, персоналії |
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http://dspace.nbuv.gov.ua/handle/123456789/56210 |
| citation_txt |
From Belgrade to Sofia with N.N. Bogolyubov in September 1978 / V.A. Stefan // Український фізичний журнал. — 2010. — Т. 55, № 5. — С. 651-652. — Бібліогр.: 5 назв. — англ. |
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| fulltext |
CHRONICLE, BIBLIOGRAPHIC DATA, AND PERSONALIA
ISSN 2071-0194. Ukr. J. Phys. 2010. Vol. 55, No. 5 651
FROM BELGRADE TO SOFIA WITH N.N. BOGOLYUBOV
IN SEPTEMBER 1978
V.A. STEFAN
Stefan-University-Press
(POB 2946, 1010 PEARL, La Jolla, CA 92038, USA)
It is with the ultimate pleasure that I greet you, as the
attendees of the Conference honoring Nikolai Nikolae-
vich Bogolyubov acknowledged worldwide as the one of
the great physicists of the 20th century. I had an honor
to meet with Bogolyubov in Belgrade, Serbia, in Septem-
ber 1978, when he was the guest of the Serbian Academy
of Sciences. At that time, I was doing a research in the-
oretical plasma physics in the Department of Theory of
Plasma Phenomena at the Lebedev Institute of Physics,
Russian Academy of Sciences led by Victor P. Silin and
was on the leave of absence from the Lebedev Institute.
Bogolyubov and I drove together in my car, along with
Bogolyubov’s wife and his collaborator, from Belgrade
to Sofia, Bulgaria, whereby Bogolyubov was the guest of
the Bulgarian Academy of Sciences. I was fortunate to
get acquainted with the human side of N.N. Bogolyubov.
At that time, he was the Director of the JINR at Dubna.
He was informing me (in a fatherly manner) about the
exciting work that was being done there on the hadron
physics, on the work in the USA (the quark theory of
M. Gell-Mann and the “MIT Bag” model of Victor Weis-
skopf and collaborators), and the research worldwide.
As I was driving my car, Nikolai Nikolaevich Bo-
golyubov would often turn to me, telling me about the
physical problems that had been being addressed at the
Dubna. He would do that as if I was on a par with him
in the affairs. I call this the humility of a great man.
I’ve been encountering this feature as a standard trait
in men of great achievements: the greater the achiever,
the greater the humility.
This was in September 1978. We were on our way (in
my BMW-2002) from Belgrade, Serbia, to Sofia, Bul-
garia, where Bogolyubov was the guest of the Bulgarian
Academy of Sciences. He was sitting next to me, and his
wife and his collaborator on the back seats.
Bogolyubov was working at that time on the quark
theory of hadronic matter. He talked about Murray
Gell-Mann who was one of the pioneers in the research.
He also talked about Victor Weisskopf, whom he had
known personally, as the MIT (Massachusetts Institute
of Technology) leader and as the Director of CERN.,
Then I had not had a faintest idea that, in 3 short years,
I would be at the MIT Plasma Fusion center, working
in the Group of Abraham Bers. He talked about other
researchers worldwide. Bogolyubov said that Gell-Mann
is the closest to Einstein in the intellectual capacity.
I had met Nikolai Nikolaevich Bogolyubov a day be-
fore at the Vincha Institute. Bogolyubov was at that
time the Director of the Dubna Institute and was visit-
ing Belgrade as a guest of the Serbian Academy of Sci-
ences. I told Bogolyubov that I had been doing research
in the plasma parametric theory at the Lebedev Insti-
tute of Physics, in the Department of Theory of Plasma
Phenomena led by Victor Pavlovich Silin. Bogolyubov
had known Silin personally and had a great appreciation
for Silin’s scientific talent. The next day the group was
planning to go to Sofia, Bulgaria, by train. I suggested
to give them a lift in my car.
Bogolyubov’s mathematical methods [1] played a cru-
cial role in the theoretical nonlinear plasma physics and,
in particular, in the plasma parametric theory. Sagdeev
and Oraevky [2] used the Bogolyubov method in their
pioneering paper treating the parametric decay of the
intense plasma electrostatic Langmuir eigen mode, and
Silin did so in his pioneering paper [3] on the paramet-
ric decay of an intense external electromagnetic wave in
homogeneous plasma. Rosenbluth [4] also used the Bo-
golyubov method in his pioneering paper, by addressing
the convective-absolute character of parametric instabil-
ities in laser fusion plasmas.
V.A. STEFAN
On our way to Sofia, we were talking about many
things. Bogolyubov’s wife and his collaborator were
chatting constantly... but not Nikolai Nikolaevich: he
would talk only to correct the statements of others.
By doing that, he would use 2-3 short sentences typ-
ical of a mathematician used to express his thoughts
via short mathematical theorems and lemmas. At one
point, we stopped by the restaurant along the road for
lunch, somewhere near the city of Nish, Serbia. We were
seated in the middle of the room. Somebody opened the
door and a cold air swept in. Bogolyubov’s collabora-
tor said that cold air had hit him straight into his face.
Bogolyubov corrected him by saying that it was not a
straight hit: cold air first flows turbulently around the
walls, ceiling, and the floor until it fills the whole space.
That was a good lecture on aerodynamic turbulence. In
Sofia, we encountered a very pleasant welcome by the
members of the Bulgarian Academy of Sciences. They
organized a dinner party (which I attended), honoring
Nikolai Nikolaevich. Next day in the morning, I was
driving back to Belgrade. A month thereafter, I was on
the Aeroflot airplane on my way to Moscow. Recently, I
wrote autobiographical notes entitled “My Passion” with
one chapter dedicated to my encounter with Bogolyubov
and entitled: My Encounter with N.N. Bogolyubov [5].
I am joining you in the celebration, and I salute the
life and the achievements of Nikolai Nikolaevich Bo-
golyubov.
1. N.M. Krylov and N.N. Bogolyubov, Introduction to Non-
linear Mechanics (Princeton University Press, Princeton;
1947). The Bogolyubov mathematical methods of nonlin-
ear mechanics are widely used in plasma parametric theory
and in nonlinear plasma physics in general.
2. V.N. Oraevky and R.Z. Sagdeev, Zh. Tekhn. Fiz. 32, 1291
(1962).
3. V.P. Silin, Zh. Eksp. Teor. Fiz. 48, 1679 (1965).
4. M.N. Rosenbluth, Phys. Rev. Letters 29, 565 (1972).
5. V. Alexander Stefan, My Passion (Stefan-University-
Press, La Jolla, CA, 2008).
Received 12.09.09
652 ISSN 2071-0194. Ukr. J. Phys. 2010. Vol. 55, No. 5
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