Department news
News archive until 2017
On September 20, 2016 Viktoriya SHKAPA
had successfully defended Kandidate Dissertation "Best approximations and greedy algorithms of
classes of (ψ,β)-differentiable functions"
under supervision of Doctor of Sciences Professor
Anatoliy ROMANYUK. Official opponents were
Doctor of Sciences Professor Petro ZADEREI
and Kandidate of Sciences Mykola NAZARENKO.
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On September 20, 2016 Irina MEREMELIA had successfully defended Kandidate Dissertation
"Best approximations and extremal problems of classes of holomorphic functions"
under supervision of Doctor of Sciences Viktor SAVCHUK.
Official opponents were Doctor of Sciences Professor Serhiy VAKARCHUK
and Kandidate of Sciences Olena RADZIYEVSKA.
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On June 21, 2016 Stanislav CHAICHENKO had successfully defended Doctor Dissertation
"Extremal Problems of Theory of Approximation of Functions of Real and Complex Variables".
Scientific adviser - Doctor of Sciences Viktor SAVCHUK. Official opponents - Corresponding Member of NASU, Professor
Vitalii MOTORNYI, Doctor of Sciences, Professor Oleh SKASKIV and Doctor of Sciences, Professor
Petro ZADEREI.
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On June 21, 2016 Volodymyr BODENCHUK had successfully defended Kandidate Dissertation
"Estimates of widths of classes of (ψ,β)-differentiable functions"
under supervision of Doctor of Sciences Anatolii SERDYUK.
Official opponents were Doctor of Sciences Professor Sergiy VAKARCHUK
and Kandidate of Sciences Mykola NAZARENKO.
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On January 19, 2016 Tetiana STEPANYUK had successfully defended Kandidate Dissertation
"Approximative characteristics of classes of (ψ,β)-differentiable functions"
under supervision of Doctor of Sciences
Anatolii SERDYUK. Official opponents were
Doctor of Sciences Professor
Petro ZADEREI and Kandidate of Sciences Stanislav CHAICHENKO.
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On April 7, 2015 Uliana GRABOVA had successfully defended Kandidate Dissertation
"Estimates of deviations of linear means of Fourier series on
the classes of (ψ,β)-differentiable functions" under supervision of
Doctor of Sciences Anatolii SERDYUK. Official opponents were
Doctor of Sciences Professor Petro ZADEREI and Kandidate of Sciences Stanislav CHAICHENKO.
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On January 27, 2015 junior scientific worker of the Department of Theory of Functions Vitaliy MYRONYUK
had successfully defended Kandidate Dissertation "Apptoximative characteristics of classes of functions of several variables"
under supervision of
Doctor of Sciences Professor Anatlii ROMANYUK. Official opponents were
Doctor of Sciences Professor Sergiy VAKARCHUK and Kandidate of Sciences Mykola NAZARENKO.
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On December 23, 2014 junior scientific worker of the Department of
Theory of Functions Nadiya DEREV'YANKO had successfully defended Kandidate Dissertation
"Widths of classes of periodic functions of several variables"
under supervision of Doctor of Sciences Professor
Anatolii ROMANYUK. Official opponents were
Doctor of Sciences Professor Ihor SHEVCHUK
and Kandidate of Sciences Olena RADZIYEVSKA.
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Leading scientific worker of the Department of Theory of Functions Doctor of Sciences
Anatoliy SERDYUK was awarded by Golden Badge
of Lesya Ukrainka Eastern European National University
for significant contribution to the establishment and development of the University and on occasion of
20th anniversary of Department of Differential Equations and Mathematical Physics.
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On June 3, 2014 junior scientific worker of the Department of
Theory of Functions Viktor VOYTOVICH had successfully defended Kandidate Dissertation
"Approximation of classes of (ψ,β)-differentiable functions by interpolatory analogs of de la Valle Poussin sums"
under supervision of Doctor of Sciences
Anatlii SERDYUK. Official opponents were
Doctor of Sciences Professor Sergiy VAKARCHUK
and Kandidate of Sciences Stanislav CHAICHENKO.
Additional opponent was Doctor of Sciences Professor Petro ZADEREI.
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Presidium of the National Academy of Sciences of Ukraine on its meeting on February 12, 2014
had awarded by M.G.Krein Prize Doctor of Sciences
Viktor BUSLAEV, Doctor of Sciences Professor Anatoliy ROMANYUK and
Doctor of Sciences Professor Mayor TIMAN for collection of
papers "Extremal problems of the theory of approximation of smooth functions".
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On September 17, 2013 junior scientific worker of the Department of
Theory of Functions Andriy MUSIYENKO had successfully defended Kandidate Dissertation
"Inequalities of Lebesgue type for La Vallee Poussin sums of classes of
(ψ,β)-differentiable functions"
under supervision of Doctor of Sciences
Anatlii SERDYUK. Official opponents were
Doctor of Sciences Professor Petro ZADEREI
and Kandidate of Sciences Stanislav CHAICHENKO.
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On January 22, 2013 junior scientific worker of the Department of
Theory of Functions Katerina SOLICH had successfully defended Kandidate Dissertation
"Bilinear approximations of classes of periodic functions of several variables"
under supervision of Doctor of Sciences
Anarlii ROMANYUK. Official opponents were Doctor of Sciences Professor Sergiy VAKARCHUK
and Doctor of Sciences Professor Petro ZADEREI.
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On March 13, 2012 senior scientific worker of the Department of
Theory of Functions Viktor SAVCHUK
had successfully defended Doctor Dissertation "Extremal problems of theory of approximation of holomorphic functions".
Scientific advisers - Corresponding Member of NAS of Ukraine professor
Alexander STEPANETS and Academician of NAS of Ukraine professor
Anatoliy SAMOILENKO. Official opponents were
Corresponding Member of NAS of Ukraine professor
Miroslav GORBACHUK, professor Viktor BUSLAYEV and
professor Serhiy VAKARCHUK.
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On April 5, 2011 junior scientific worker
of the Department of Theory of Functions Sergiy YANCHENKO
had successfully defended Kandidate Dissertation "Investigation of approximative characteristics
of classes of functions of several variables"
under supervision of Doctor of Sciences
Anatolii ROMANYUK. Official opponents were
Doctor of Sciences Sergiy VAKARCHUK and Kandidate of Sciences Petro POPOV.
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On June 1, 2010 junior scientific worker
of the Department of Theory of Functions Sergiy VOITENKO
had successfully defended Kandidate Dissertation "Investigation of approximative characteristics
of classes of functions of one and several variables" under supervision of
Corresponding Member of NASU Prof. Alexander STEPANETS and
Doctor of Sciences Anatolii ROMANYUK. Official opponents were
Doctor of Sciences Volodymyr KOFANOV and Kandidate of Sciences Petro POPOV.
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At February 25, 2009 Presidium of the National Academy of Sciences of Ukraine
had awarded scientific workers of the Department of Theory of Functions
Sergiy STASYUK, Igor SOKOLENKO and
Andriy SHIDLICH by annual National Academy of Sciences of Ukraine Prize for young scientists
for work "Investigation of approximative properties of classes of functions of one and several variables"
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Collection of papers "Theory
of approximation of functions and related problems"
is published as Volume 5, No.1 of "Collection of works of the Institute of
Mathematics of Ukainian Academy of Sciences".
Collection is devoted to the memory of Olexander STEPANETS.
Editorial board - Anatlii ROMANYUK>, Anatolii SERDYUK, Igor SOKOLENKO.
Summary and content of the book may be found
here.
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On February 6, 2008 Presidium of the National Academy of Sciences of Ukraine had confirmed
Doctor of Sciences Anatolii ROMANYUK
as the Head of the Department of the Theory of Functions of the Institute of Mathematics of NASU.
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Collection of papers "Problems of the theory
of approximation of functions and related problems"
is published as Volume 4, No.1 of "Collection of works of the Institute of
Mathematics of Ukainian Academy of Sciences".
Editorial board - Corresponding Member of NASU Olexander STEPANETS, Anatolii ROMANYUK, Igor SOKOLENKO.
Summary and content of the book may be found
here.
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By decree from December 4, 2007 President of Ukraine Viktor Yushchenko
had awarded scientific workers of the Department of
Theory of Functions Sergiy STASYUK,
Igor SOKOLENKO and Andriy SHIDLICH by annual President of Ukraine Prize for young scientists
for work "Investigation of approximative characteristics of functional classes".
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Presidium of the National Academy of Sciences of Ukraine on its meeting on February 28, 2007
had awarded by M.M.Krylov Prize Corresponding Member of NAS of Ukraine
MAKAROV Volodymyr Leonidovich, Corresponding Member of NAS
of Ukraine STEPANETS Olexander Ivanovich and Professor Fahraddin ABDULLAYEV
for collection of papers "Modern methods of theory of approximation and interpolation".
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On October 31, 2006 postgraduate of the Department of the Theory
of Functions Oksana FEDUNYK had successfully defended Kandidate Dissertation
"Linear and orthoproject widths of classes of periodic functions
of several variables"
under supervision of Doctor of Sciences Anatolii ROMANYUK.
Official opponents were Doctor of Sciences Viktor KONOVALOV and Kandidate of Sciences Mykola NAZARENKO.
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On February 28, 2006 senior scientific worker of the Department of Theory of Functions Anatolii SERDYUK
had successfully defended Doctor Dissertation "Extremal problems of approximation
theory on classes of infinitely differentiable periodic functions".
Scientific advisor - Corresponding Member of NASU Prof. Alexander STEPANETS.
Official opponents - Corresponding Member of NASU Prof. Myroslav GORBACHUK, Prof. Anatoly LIGUN
and Prof. Mayor TIMAN.
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New collection of papers "Problems of the theory
of approximation of functions and related problems"
is preparing for publication.
Editorial board - Corresponding Member of NASU Alex ander STEPANETS,
Anatolii ROMANYUK, Anatolii SERDYUK, Sergiy STASYUK.
Deadline for submission of articles is
October 1, 2005. Papers should be submitted
to the Department of the Theory of Functions
of the Institute of
Mathematics of Ukainian Academy of Sciences
or by e-mail to stasyuk@imath.kiev.ua
.
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On May 31, 2005 junior scientific worker
of the Department of
Theory of Functions Igor SOKOLENKO
had successfully defended Kandidate Dissertation
"Approximation of -integrals of
functions given on whole real axis"
under supervision of Corresponding Member of NASU Prof.
Alexander STEPANETS.
Official opponents were Prof. Petro ZADEREY
and Prof. Volodymir RUKASOV.
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Collection of papers "Problems of the theory
of approximation of functions and related problems"
is published as Volume 1, No.1 of "Collection of works of the Institute of
Mathematics of Ukainian Academy of Sciences".
Editorial board - Corresponding Member of NASU
A.I.STEPANETS, A.S.ROMANYUK, A.S.SERDYUK, S.A.STASYUK.
Summary and content of the book may be found
here.
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On June 1, 2004 junior scientific worker of the Department of
Theory of Functions Andriy SHIDLICH had successfully defended Kandidate Dissertation
"Linear methods of summation of series in spacesSpφ"
under supervision of Corresponding Member of NASU Prof. Alexander STEPANETS.
Official opponents were Prof. Sergiy VAKARCHUK and Prof. Volodymir RUKASOV.
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On March 4, 2004 President of Ukraine Leonid Kuchma had
delivered honorary medals to laureates of State Prize of Ukraine in the field
of science and technology for year 2003 and to laureates
of annual President of Ukraine Prizes for young scientists.
Among honoured - scientific workers of the Department of
Theory of Functions
Anatoliy SERDYUK and
Viktor SAVCHUK.
They have obtained
President of Ukraine Prize for young scientists
for a circle of works "Extremal problems of theory of
approximation of functions of real and complex variable"
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Mailing address: 01024 Ukraine, Kyiv, 3, Tereschenkivska st.; E-mail: funct@imath.kiev.ua
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