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      • American Studies Center
      • Center for Mathematical and Applied Research
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      • Research Center for Chemistry
      • Research Institute of Biology
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      • Research Center for the Institute of Pharmacy
    • Scientific and Educational Centers
      • Observatory
      • Scientific and Educational Center for Control and Monitoring of the Quality of Medicines
      • Specialized cabinet-laboratory for the Design of Very Large Integrated Circuits (Synopsis)
      • Legal Clinic
      • Center for Applied Psychology
      • Research Center-Library of Greek Studies
      • Innovation Center for Microbial Biotechnology and Biofuels
      • Russian Center
      • Center for Russian Studies
      • Distance Learning Laboratory of Sociology
    • Column Wrapper
      • Banner
    • Administrative Divisions of YSU
      • Scientific Secretary
      • Center for Doctoral Education
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  1. Main
  2. Employees
  3. Karen Aleksander Keryan
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karenkeryan@ysu.am

Karen Aleksander Keryan

Faculty of Mathematics and Mechanics
Ֆունկցիաների տեսության և դիֆերենցիալ հավասարումների ամբիոն
Assistant

Personal information

Date of birth
1984
Education
Institution
Yerevan State University
Faculty
Faculty of Mathematics and Mechanics
Date
2007 - 2009
Degree name
PhD student
Institution
Yerevan State University
Faculty
Faculty of Mathematics and Mechanics
Date
2005 - 2007
Degree name
Masters
Institution
Yerevan State University
Faculty
Faculty of Mathematics and Mechanics
Date
2001 - 2005
Degree name
Bachelor
Scientific Rank/degree
Institution
Yerevan State University
Date
2018
Degree name
Doctor
Specialty
Physico-mathematical sciences
Research Topic
Convergence, uniqueness and basis problems for orthonormal spline systems
Institution
Yerevan State University
Date
2009
Degree name
Candidate
Specialty
Physico-mathematical sciences
Scientific Supervisor
Gevorkyan Gegham
Research Topic
Questions of basisness of general periodic Franklin system
Work experience
Institution
Supreme Certifying Committee
Period of time
2021 - 2023
Rank/degree
Chairman
Institution
American University of Armenia
Period of time
2015 - 2022
Rank/degree
Adjunct lecturer
Institution
Yerevan State University
Period of time
2008 till now
Rank/degree
Assistant professor
State awards and honorary titles
2018
RA Presidential Award

Publications

- Կատեգորիա -
Article
Periodic orthonormal spline systems with arbitrary knots as bases in H1(T)
K. Keryan
L. Hakobyan
Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences)
2023
33-42
Article
A uniqueness theorem for orthonormal spline series
K. A. Keryan
A. L. Khachatryan
Reports of NAS RA
2023
7-11
Article
A Uniqueness theorem for Franklin series
K. Keryan
A. Khachatryan
Известия НАН РА. Математика (Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences))
2020
43-56
Article
CONVERGENCE TO INFINITY FOR ORTHONORMAL SPLINE SERIES
G. G. GEVORKYAN
K. A. KERYAN
M. P. POGHOSYAN
Acta Mathematica Hungarica
2020
604-617
Article
Unconditionality of periodic orthonormal spline systems in Lp
K. Keryan
M. Passenbrunner
Studia Mathematica
2019
57-91
Article
Reconstruction of martingales and applications to multiple Haar series.
Karen Keryan
Mamikon Ginovyan
Studia Scientiarum Mathematicarum Hungarica
2018
542–558.
Article
О локальной эквивалентности мажоранты частичных сумм и функции Пэли для рядов Франклина
Геворкян Г.Г.
Керян К.А.
Известия НАН РА. Математика (Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences))
2017
47-58
http://jmath.sci.am/index.php/rus
Article
An example of double Fourier-Haar series with a nonregular subseries
K.A. Keryan
Proceedings of the YSU. Physical and Mathematical Sciences
2017
18-21
http://www.ysu.am/science/en/journals
Article
O базисности в H^1(R) ортонормальных систем сплайнов на R с нулевыми средними
К.А. Керян
Доклады НАН РА
2017
14-20
http://www.flib.sci.am/eng/Reports/Frame.html
Article
Теорема единственности для рядов Франклина
К.А. Керян
Известия НАН РА. Математика (Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences))
2017
26-38
http://jmath.sci.am/index.php/rus
Article
Uniqueness theorem for sequences of piecewise polynomial functions
K.A. Keryan
Armenian Journal of Mathematics
2017
28-34
http://www.flib.sci.am/eng/journal/Math/
Article
On recovery of a Franklin series from its sum
K.A. Keryan
Proceedings of the YSU. Physical and Mathematical Sciences
2017
151-157
Article
Orthonormal spline systems on R with zero means as bases in H^1(R)
K. Keryan
Analysis Mathematica
2017
581-601
Article
Об одной системе кусочно линейных функций с нулевыми интегралами
Геворкян Г.Г.
Керян К.А.
Известия НАН РА. Математика (Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences))
2016
3-16
http://jmath.sci.am/index.php/rus
Article
О безусловной базисности в H^1(R) системы функций Франклина с нулевыми средними
К.А. Керян
Известия НАН РА. Математика (Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences))
2016
43-71
http://jmath.sci.am/index.php/rus
Article
Теорема единственности для кратных рядов Чисельского
К.А. Керян
Доклады НАН РА
2016
263-270
http://www.flib.sci.am/eng/Reports/Frame.html
Article
Общая периодическая система Франклина как базис в пространстве B^1(T) .
К.А. Керян
Доклады НАН РА
2015
178-184
http://www.flib.sci.am/eng/Reports/Frame.html
Article
Unconditionality of orthogonal spline systems in
G. Gevorkyan
A. Kamont
K. Keryan
M.Passenbrunner
Studia Mathematica
2015
123-154
https://www.impan.pl/en/publishing-house/journals-and-series/studia-mathematica
Article
Одна теорема единственности аддитивных функций и ее приложение к некоторым ортогональным рядам
К.А. Керян
Математические заметки (MATHEMATICAL NOTES)
2015
382-396
http://www.mathnet.ru/php/journal.phtml?jrnid=mzm&option_lang=rus

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